US Pat. No. 9,314,673

GOLF BALL COMPOSITION AND GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A golf ball composition comprising a diene polymer, an unsaturated carboxylic acid and/or a metal salt thereof, and an
organic peroxide, wherein the diene polymer has an aluminum catalyst residue content of not more than 300 ppm; wherein the
diene polymer has a cis-1,4 bond content of at least 90% and a 1,2-vinyl bond content of not more than 2.0%, and a molecular
weight distribution (Mw/Mn) of not more than 3; wherein the diene polymer is synthesized using as a catalyst at least one
type of complex selected from the group consisting of metallocene complexes of general formulae (I) and (II) below, and half-metallocene
cation complexes of general formula (III) below; wherein the center metal M in general formulas (I), (II), and (III) is a
lanthanide element:

wherein in formula (I), M is a lanthanide element; each occurrence of CpR is a substituted or unsubstituted indenyl; Ra to Rf are each independently an alkyl group of 1 to 3 carbons or a hydrogen atom; L is a neutral Lewis base; and w is an integer
from 0 to 3;


wherein in formula (II), M is a lanthanide element; each occurrence of CpR is a substituted or unsubstituted indenyl; X? is a hydrogen atom, a halogen atom, an alkoxide group, a thiolate group, an
amide group, a silyl group or a hydrocarbon group of 1 to 20 carbons; L is a neutral Lewis base; and w is an integer from
0 to 3;


wherein in formula (III), M is a lanthanide element; CpR? is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl; X is a hydrogen atom, a halogen atom, an alkoxide
group, a thiolate group, an amide group, a silyl group or a hydrocarbon group of 1 to 20 carbons; L is a neutral Lewis base;
w is an integer from 0 to 3; and [B]? is a non-coordinating anion,

further comprising aluminoxanes as co-catalysts, wherein an elemental ratio Al/M of the aluminum element Al in the aluminoxane
to the center metal M in the metallocene complex is from 10 to 1,000.

US Pat. No. 9,242,146

GOLF BALL COMPOSITION AND GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A method for preparing a golf ball composition comprising:
a step of producing a diene polymer (A) having a smallest molecular weight value of at least 3,000; which is synthesized using
as a catalyst at least one type of complex selected from the group consisting of metallocene complexes of general formulae
(I) and (II) below, and half-metallocene cation complexes of general formula (III) below, and using an organolaluminum compound
of the general formula AIRR?R? wherein R and R? are each independently a C1-10 hydrocarbon group, a chlorine or a hydrogen atom, and R? is a C1-10 hydrocarbon group in an amount of from 97.4 to 500 moles per mole of the metallocene complex as a co-catalyst; wherein the
center metal M in general formulae (I), (II) and (III) is gadolinium:


wherein in formula (I), each occurrence of CpR is a substituted or unsubstituted indenyl;

Ra to Rf are each independently an alkyl group having 1 to 3 carbons or a hydrogen atom; L is a neutral Lewis base; and w is an integer
from 0 to 3;


wherein in formula (II), each occurrence of CpR is a substituted or unsubstituted indenyl;

X? is a hydrogen atom, a halogen atom, an alkoxide group, a thiolate group, an amide group, a silyl group or a hydrocarbon
group having 1 to 20 carbons; L is a neutral Lewis base; and w is an integer from 0 to 3;


wherein in formula (III), CpR' is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl; X? is a hydrogen atom, a halogen atom, an alkoxide
group, a thiolate group, an amide group, a silyl group or a hydrocarbon group having 1 to 20 carbons; L is a neutral Lewis
base; w is an integer from 0 to 3; and is a non-coordinating anion; and then

a step of compounding the diene polymer (A) with an unsaturated carboxylic acid and/or a metal salt thereof (B), and an organic
peroxide (D) to make up the golf ball composition.

US Pat. No. 9,242,144

GOLF BALL COMPOSITION AND GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A method for preparing a golf ball composition comprising the step of producing a diene polymer having a molecular weight
distribution (Mw/Mn) of at least 1.53 and not more than 1.74, and a weight-average molecular weight (Mw) of at least 33.3×104 and not more than 57.0×104; which is synthesized using as a catalyst at least one type of complex selected from the group consisting of metallocene
complexes of general formulae (I) and (II) below, and half-metallocene cation complexes of general formula (III) below, and
using an organolaluminum compound of the general formula AIRR?R? wherein R and R? are each independently a C1-10 hydrocarbon group, a chlorine or a hydrogen atom, and R? is a C1-10 hydrocarbon group in an amount of from 66.6 to 500 moles per mole of the metallocene complex as a co-catalyst; wherein the
center metal M in general formulae (I), (II) and (III) is gadolinium;

wherein in formula (I), each occurrence of CpR is a substituted or unsubstituted indenyl; Ra to Rf are each independently an alkyl group of 1 to 3 carbons or a hydrogen atom; L is a neutral Lewis base; and w is an integer
from 0 to 3;


wherein in formula (II), each occurrence of CpR is a substituted or unsubstituted indenyl; X? is a hydrogen atom, a halogen atom, an alkoxide group, a thiolate group, an
amide group, a silyl group or a hydrocarbon group of 1 to 20 carbons; L is a neutral Lewis base; and w is an integer from
0 to 3;


wherein in formula (III), CpR? is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl; X is a hydrogen atom, a halogen atom, an alkoxide
group, a thiolate group, an amide group, a silyl group or a hydrocarbon group of 1 to 20 carbons; L is a neutral Lewis base;
w is an integer from 0 to 3; and [B]? is a non-coordinating anion, and then

compounding the diene polymer with an unsaturated carboxylic acid and/or a metal salt thereof, and an organic peroxide to
make up the golf ball composition.

US Pat. No. 9,348,953

SWING SIMULATION SYSTEM, SWING SIMULATION APPARATUS, AND SWING SIMULATION METHOD

BRIDGESTONE CORPORATION, ...

1. A simulation system for simulating a behavior of a golf club during a swing made by a golfer using the golf club, comprising:
at least two imaging devices for capturing images of at least three identification features capable of locating a closed virtual
plane, defined by the at least three identification features, that follows a grip of the golf club during the swing; and

a simulation apparatus for simulating the behavior of the golf club during the swing, based on position information on the
virtual plane.

US Pat. No. 9,242,145

GOLF BALL COMPOSITION AND GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A method for preparing a golf ball composition comprising:
a step of producing a diene polymer (A) having a peak top molecular weight (Mp) on a molecular weight distribution curve measured
using gel permeation chromatography (GPC) of at least 40×104 and not more than 100×104; which is synthesized using as a catalyst at least one type of complex selected from the group consisting of metallocene
complexes of general formulae (I) and (II) below, and half-metallocene cation complexes of general formula (III) below, and
using an organolaluminum compound of the general formula AIRR?R? wherein R and R? are each independently a C1-10 hydrocarbon group, a chlorine or a hydrogen atom, and R? is a C1-10 hydrocarbon group in an amount of from 100 to 500 moles per mole of the metallocene complex as a co-catalyst; wherein the
center metal M in general formulae (I), (II) and (III) is gadolinium:


wherein in formula (I), each occurrence of CpR is a substituted or unsubstituted indenyl; Ra to Rf are each independently an alkyl group of 1 to 3 carbons or a hydrogen atom; L is a neutral Lewis base; and w is an integer
from 0 to 3;


wherein in formula (II), each occurrence of CpR is a substituted or unsubstituted indenyl; X? is a hydrogen atom, a halogen atom, an alkoxide group, a thiolate group, an
amide group, a silyl group or a hydrocarbon group of 1 to 20 carbons; L is a neutral Lewis base; and w is an integer from
0 to 3;


wherein in formula (III), CpR? is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl; X is a hydrogen atom, a halogen atom, an alkoxide
group, a thiolate group, an amide group, a silyl group or a hydrocarbon group of 1 to 20 carbons; L is a neutral Lewis base;
w is an integer from 0 to 3; and [B]? is a non-coordinating anion; and then

a step of compounding the diene polymer (A) with an unsaturated carboxylic acid and/or a metal salt thereof (B), and an organic
peroxide (D) to make up the golf ball composition.

US Pat. No. 9,254,420

GOLF BALL COMPOSITION AND GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A method for preparing a golf ball composition comprising:
a step of producing a diene polymer (A) including not more than 1.5% of components having a molecular weight of 30,000 or
less; which is synthesized using as a catalyst at least one type of complex selected from the group consisting of metallocene
complexes of general formulae (I) and (II) below, and half-metallocene cation complexes of general formula (III) below, and
using an organolaluminum compound of the general formula AIRR?R? wherein R and R? are each independently a C1-10 hydrocarbon group, a chlorine or a hydrogen atom, and R? is a C1-10 hydrocarbon group in an amount of from 83.3 to 500 moles per mole of the metallocene complex as a co-catalyst; wherein the
center metal M in general formulae (I), (II) and (III) is gadolinium:


wherein in formula (I), each occurrence of CpR is a substituted or unsubstituted indenyl; Ra to Rf are each independently an alkyl group of 1 to 3 carbons or a hydrogen atom; L is a neutral Lewis base; and w is an integer
from 0 to 3;


wherein in formula (II), each occurrence of CpR is a substituted or unsubstituted indenyl; X? is a hydrogen atom, a halogen atom, an alkoxide group, a thiolate group, an
amide group, a silyl group or a hydrocarbon group of 1 to 20 carbons; L is a neutral Lewis base; and w is an integer from
0 to 3;


wherein in formula (III), CpR? is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl; X is a hydrogen atom, a halogen atom, an alkoxide
group, a thiolate group, an amide group, a silyl group or a hydrocarbon group of 1 to 20 carbons; L is a neutral Lewis base;
w is an integer from 0 to 3; and [B]? is a non-coordinating anion; and then

a step of compounding the diene polymer (A) with an unsaturated carboxylic acid and/or a metal salt thereof (B), and an organic
peroxide (D) to make up the golf ball composition.

US Pat. No. 10,046,206

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a one-piece golf ball or a golf ball having a core and a cover of one layer or a plurality of layers, wherein the one-piece golf ball or core is formed of a material molded under heat from a rubber composition comprising the following components (A) to (E):(A) a base rubber,
(B) an organic peroxide,
(C) water,
(D) a metal methacrylate, and
(E) zinc oxide,the content of component (D) per 100 parts by weight of component (A) is from 30 to 45 parts by weight, the molar ratio (C)/(D) between components (C) and (D) satisfies the following formula0.9<(C)/(D)<1.1,and the core has an initial velocity V0 of at least 72.0 m/s and up to 75.0 m/s.

US Pat. No. 9,981,163

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head, comprising:a head main body that includes:
a hosel hole;
a first attachment part that has a first opening part for allowing a weight member to be removably attached thereto; and
a second attachment part that has a second opening part for allowing a weight member to be removably attached thereto;
two or more of first weight members that have different weights and can each be attached to the first attachment part; and
two or more of second weight members that have different weights and can each be attached to the second attachment part, wherein
there are two or more combinations each of which includes one of the first weight members and one of the second weight members, and has the same total weight,
assuming reference plan view in which the golf club head is viewed downward from a position vertically above the golf club head under a condition where a sole part faces upward and a hosel hole central axis extension line is vertical, a reference imaginary straight line, a first imaginary straight line and a second imaginary straight line are set with respect to the reference plan view,
the reference imaginary straight line passing through a central axis of the hosel hole and a head gravity center that is determined when neither the first weight members nor the second weight members are attached to the head main body,
the first imaginary straight line passing through the central axis of the hosel hole and a center of the first opening part, and
the second imaginary straight line passing through the central axis of the hosel hole and a center of the second opening part,
a first angle ?1 between the reference imaginary straight line and the first imaginary straight line is ±10 degrees or less, and
a second angle ?2 between the reference imaginary straight line and the second imaginary straight line is larger than the first angle ?1.

US Pat. No. 9,457,532

MOLD FOR INJECTION-MOLDING A GOLF BALL, AND GOLF BALL MANUFACTURING METHOD

Bridgestone Sports Co., L...

1. A method of manufacturing a golf ball using a mold for injection-molding a golf ball, the mold comprising:
a plurality of mold sections which have at least a parting surface that is based on a golf ball equator-based mold parting
line and removably mate to form an interior cavity for molding the golf ball, the cavity having an inner wall with a plurality
of dimple-forming protrusions provided thereon,

wherein at least four resin gates are formed along the parting surface that is based on a golf ball equator-based mold parting
line, and

the inner wall has a vertical diameter connecting two poles of the cavity in a vertical direction thereof and a horizontal
diameter connecting two poles of the cavity in a horizontal direction thereof, the vertical diameter being longer than the
horizontal diameter,

the method comprising the step of molding a cover by placing a center sphere in the mold cavity formed by removably mating
the plurality of mold sections which have at least a parting surface that is based on a golf ball equator-based mold parting
line, supporting the center sphere with a support pin provided in the mold, and injecting a cover-forming material between
the center sphere and the cavity inner wall while at the same time retracting the support pin.

US Pat. No. 9,393,467

IRON TYPE GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. An iron type golf club head that comprises a face part, a sole part, a hosel part, and a cavity part, wherein
a lower part of an inner surface of the cavity part on a face surface side is a forward recess part that is recessed toward
a face surface, and

the following formulas are satisfied:
?2??3 and ?2??1,wherein an intersectional angle that is formed between the lower part of the inner surface of the cavity part on the face
surface side and the face surface is marked with ?2, an intersectional angle that is formed between a rear surface of the cavity part and the face surface is marked with ?3, and an intersectional angle that is formed between a bottom surface of the cavity part and the face surface is marked with
?1,
the bottom surface of the cavity part, which forms the intersectional angle (?1), inclines such that the bottom surface approaches a sole surface of the sole part as the bottom surface approaches the face
part, and

the intersectional angle (?1) is 90° or less.

US Pat. No. 9,398,138

SELECTION SUPPORT APPARATUS AND SELECTION SUPPORT METHOD

BRIDGESTONE SPORTS CO., L...

1. A selection support system comprising a selection support apparatus and a measurement apparatus capable of communicating
with the selection support apparatus through a network, wherein
the measurement apparatus includes;
a measuring device configured to measure a swing of a testing golfer; and
a terminal device configured to be communicatively connected to the measuring device, the terminal device transmitting a plurality
of types of characteristic data representing a swing characteristic of the testing golfer based on a measurement result of
the measuring device to the selection support apparatus through the network,

the selection support apparatus includes a storage device, a processor and a transmitter,
the storage device is configured to store component information representing a correspondence between golf club components
and a plurality of types of characteristic values that characterize the components,

the processor is configured to convert the plurality of types of characteristic data to a plurality of types of recommended
values which corresponding to the plurality of types of characteristic values,

each recommended value is calculated based on the characteristic data, using ?and ?as coefficients, by
recommended value=characteristic data×?+?,
where the coefficients ?and ?are fixed values according to the corresponding types of characteristic values and the fixed
values are different for each of the corresponding types of characteristic values,

the processor is further configured to select, based on the plurality of types of recommended values and the plurality of
types of characteristic values, a recommended component from components listed in the component information, and

the transmitter is configured to transmit information of the recommended component to the terminal device through the network.

US Pat. No. 9,050,500

GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A golf ball comprising:
a core located in a center of the golf ball;
a cover surrounding an outside of the core and having plural dimples on a surface thereof, the cover having a thickness of
at most 2 mm;

a paint layer surrounding an outside of the cover, the paint layer formed of a material having rubber elasticity and having
a first loss tangent (tan ?) of at least 0.25, the paint layer having a thickness of at most 100 ?m; and

a top coat further surrounding an outside of the paint layer, the top coat having a thickness of at most 60 ?m,
wherein a material for forming the cover has a second loss tangent, a difference Td between the first loss tangent and the
second loss tangent being at least 0.10.

US Pat. No. 9,233,279

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the
envelope layer, and a cover which encases the intermediate layer and has formed on a surface thereof a plurality of dimples,
wherein the core is formed primarily of a thermoplastic resin, has a shore D center hardness of from 30 to 46 and has a deflection,
when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf), of from 3.3 to 10 mm, has a
diameter of from 20 to 30 mm, the envelope layer is formed of a rubber composition containing primarily a rubber material
and has a thickness of from 3 to 10 mm, the intermediate layer is formed of a resin composition containing primarily an ionomer
which has an unsaturated carboxylic acid content (acid content) of at least 16 wt %, and the cover is formed of a resin composition
containing primarily a urethane; wherein the intermediate layer has a specific gravity of from 0.90 to 0.98, and the core,
the envelope layer and the intermediate layer have specific gravities which satisfy the condition:
core specific gravityintermediate layer specific gravity;
and wherein the core, the envelope layer, the intermediate layer and the cover have Shore D surface hardnesses which satisfy
the condition:

core surface hardnesscover surface hardness.

US Pat. No. 9,808,681

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A hollow golf club head, comprising a face part, a sole part, a side part, a crown part, and a hosel part, wherein
at least one of the face part and the crown part has portions of two different thicknesses that are first and second thickness
portions, the first thickness portion having a first thickness, and the second thickness portion having a second thickness
that is different from the first thickness,

a rigidity of the first thickness portion is the same as a rigidity of the second thickness portion,
the second thickness of the second thickness portion is greater than the first thickness of the first thickness portion, and
the second thickness portion has a hollow chamber part that is a hollow chamber entirely enclosed within the second thickness
portion.

US Pat. No. 9,308,421

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head including a sole portion and a face portion, comprising: a metal member that forms said face portion,
wherein a surface of said metal member comprises: a plurality of score lines; and undulations continuously formed in an up-down
direction of said face portion, a pitch between adjacent apexes of said undulations exceeds 3 mm, and said score lines are
formed at the apexes of said undulations; wherein one bottom portion of said undulation is located between said score lines
that are adjacent.

US Pat. No. 9,108,347

GOLF BALL MOLD AND GOLF BALL MANUFACTURING METHOD

BRIDGESTONE SPORTS CO., L...

1. The method of manufacturing a golf ball of using a golf ball mold comprising a mold body configured as a plurality of mold
parts which have at least a parting surface that defines a parting line at a golf ball equator and removably mate to form
a cavity having an inner wall with a plurality of dimple-forming protrusions thereon, and a support pin which has an end face
with a plurality of dimple-forming protrusions thereon and is extendable into and retractable from the cavity, the support
pin extending into the cavity to support a center sphere and, when in a retracted state, the end face thereof defining a portion
of the inner wall of the cavity,
wherein the end face of the support pin includes a pole of the cavity and has a peripheral edge which intersects a parallel
of latitude at 10 degrees from the pole,

comprising the steps of,
molding a cover by placing a center sphere in the mold cavity formed by removably mating the plurality of mold parts which
have at least a parting surface that defines a parting line at a golf ball equator, and

supporting the center sphere with the support pin provided in the mold, then
injecting a cover-forming material between the center sphere and the cavity inner wall while at the same time retracting the
support pin.

US Pat. No. 9,044,644

SOLID GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A solid golf ball comprising a core of at least one layer and a cover of at least one layer, wherein at least one layer
of the core is a sphere formed primarily of polybutadiene and includes at least 0.05 part by weight each of (I) a rubber powder
obtained by granulating a rubber material containing acrylic acid or a metal salt of acrylic acid and (II) a polyurethane
resin powder per 100 parts by weight of rubber component, and at least one layer of the cover is formed primarily of polyurethane,
wherein, when A is the JIS-C hardness at a surface of the core, B is the JIS-C hardness at a position 2 mm inside the core
surface, C is the JIS-C hardness at a position 5 mm inside the core surface, D is the JIS-C hardness at a position 10 mm inside
the core surface, E is the JIS-C hardness at a position 15 mm inside the core surface, and F is the JIS-C hardness at the
center of the core, the following hardness relationship is satisfied:

A>BE>F.

US Pat. No. 9,968,830

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the envelope layer, and a cover layer encasing the intermediate layer and having formed on an outer surface thereof a plurality of dimples,wherein the core is formed primarily of a base rubber, the envelope layer and the intermediate layer are formed primarily of like or unlike synthetic resin materials, the cover layer is formed primarily of a urethane material, and conditions (1) to (4) below are satisfied:
(1) surface hardness (Shore D) of envelope layer-encased sphere (2) cover layer thickness?intermediate layer thickness;
(3) T?M>1.0 mm, where T (mm) is the deflection of the core when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf) and M (mm) is the deflection of the ball when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf); and
(4) initial velocity (m/s) of core>initial velocity (m/s) of ball; and
wherein the conditions below are satisfied:
(initial velocity of intermediate layer-encased sphere?initial velocity of envelope layer-encased sphere)>0 m/s; and
surface hardness (Shore D) of envelope layer-encased spheresurface hardness (Shore D) of ball.

US Pat. No. 9,364,721

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of at least one layer, wherein the core is formed of a rubber composition including
a base rubber, sulfur and an organosulfur compound and the amount of sulfur is from 0.01 to 0.085 parts by weight per 100
parts by weight of the base rubber, and the core has a cross-sectional hardness which, letting (H?14) be a JIS-C hardness at a position 14 mm in from a surface toward a center of the core, (H?8) be a JISC hardness at a position 8 mm in from the surface toward the center of the core, (H?6) be a JIS-C hardness at a position 6 mm in from the surface toward the center of the core, and (H?4) be a JIS-C hardness at a position 4 mm in from the surface toward the center of the core, satisfies the formulas (1) to
(4) below:
H?14<70  (1)

H?8<72  (2)

H?6<75, and  (3)

H?4?H?8>8.  (4)

US Pat. No. 9,227,114

IRON TYPE GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. An iron type golf club head comprising:
a main body portion having a face surface and a sole surface;
a backward bulging section provided at a lower back section of the main body portion, the bulging section including:
an upper surface side recess formed to extend downward from the upper surface of the backward bulging section; and
a lower surface side recess formed to extend upward from the lower surface of the backward bulging section; and
a hosel portion connected to the main body portion, wherein
the upper surface side recess and the lower surface side recess are overlapped at least in part with each other in the perspective
side view of the head when viewed from the toe side of the iron type golf club head.

US Pat. No. 9,682,283

GOLF BALL AND METHOD OF MANUFACTURE

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one or more layer encasing the core, wherein the cover has an outermost layer
molded of an ether type thermoplastic polyurethane material, and a surface of the cover is treated with a polyisocyanate compound
that is free of organic solvent, wherein the rebound resilience of the outermost layer prior to the above surface treatment
is at least 35%, and wherein the polyisocyanate compound is a mixture of 4,4?-diphenylmethane diisocyanate (MDI) and polymethylene
polyphenyl polyisocyanate containing 41 to 59% by weight of MDI and the viscosity at 25° C. of the polyisocyanate compound
is from 25 to 180 mPa·s.

US Pat. No. 9,463,362

GOLF CLUB AND SHAFT

Bridgestone Sports Co., L...

1. A shaft for a golf club, which is made of a fiber reinforced resin, wherein
when a position 100 mm apart from a distal end of the shaft is represented by P1, a position 200 mm apart by P2, a position 500 mm apart by P3, and a position 1,000 mm apart by P4, thicknesses at the positions are defined as

P1: not more than 1.0 mm

P2: not more than 0.9 mm

P3: not more than 0.6 mm

P4: not more than 0.6 mm

each section between the positions has a thickness larger than a thickness transition obtained by connecting the thicknesses
at the positions by a straight line,

the shaft comprises a plurality of prepregs,
said plurality of prepregs include a plurality of first prepregs and at least one second prepreg,
said plurality of first prepregs comprise prepregs containing carbon fibers,
said second prepreg comprises a prepreg containing a material having a specific gravity higher than the specific gravity of
the prepregs containing carbon fibers, and

a weight of the shaft is 35 g (inclusive) to 45 g (inclusive).

US Pat. No. 9,418,288

GOLF CLUB SELECTION SUPPORT APPARATUS AND SELECTION SUPPORT METHOD

Bridgestone Sports Co., L...

1. A selection support apparatus comprising:
a processor; and a storage unit storing computer readable instructions, when executed by the processor, cause the apparatus
to:

acquire with a measuring system a plurality of types of characteristic data representing a swing characteristic of a testing
golfer based on a test shot result of a golf club;

determine a swing type of the testing golfer out of swing types classified in advance based on at least one of the plurality
of types of characteristic data;

convert at least one of the plurality of types of characteristic data to a recommended value for the testing golfer in association
with a characteristic value that characterizes a component of a golf club;

select, based on the swing type of the testing golfer, the recommended value, and component information representing a correspondence
between components, the swing types, and the characteristic value, a recommended component which fits the testing golfer from
the components listed in the component information, and

output information with regard to the recommended component, wherein in the converting, coefficients ? and ? are set in accordance
with the swing type; and the recommended value is converted from the characteristic data by recommended value=characteristic
data×?+?.

US Pat. No. 9,168,424

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the
envelope layer, and a cover which encases the intermediate layer and has formed on a surface thereof a plurality of dimples,
wherein the core is formed primarily of one or more thermoplastic elastomer selected from the group consisting of polyester,
polyamide, polyurethane, olefin and styrene-type thermoplastic elastomers and has a diameter of from 10 to 30 mm, a specific
gravity of more than 1.0 and less than 1.3, and a deflection when compressed under a final load of 1,275 N (130 kgf) from
an initial load of 98 N (10 kgf) of from 3.6 to 10 mm,

the envelope layer is formed of a rubber composition containing primarily a rubber material and has a thickness of from 3
to 10 mm,

the intermediate layer is formed of a resin composition containing primarily an ionomer, and the cover is formed of a resin
composition containing primarily a urethane;

wherein the intermediate layer has a specific gravity of less than 1.0;
wherein the envelope layer, the intermediate layer and the cover have specific gravities which satisfy the condition:
envelope layer specific gravity>intermediate layer specific gravity and wherein the core, the envelope layer, the intermediate layer and the cover have Shore D surface hardnesses which satisfy
the condition:

core surface hardnesscover surface hardness.

US Pat. No. 9,764,200

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the
envelope layer, and an outermost layer encasing the intermediate layer,
wherein the sphere obtained by peripherally encasing the core with the envelope layer (envelope layer-encased sphere), the
sphere obtained by peripherally encasing the envelope layer with the intermediate layer (intermediate layer-encased sphere),
and the ball have respective surface hardnesses, expressed in terms of Shore D hardness, which satisfy the relationship

ball surface hardness surface hardness of envelope layer-encased sphere;
the intermediate layer and the outermost layer have respective thicknesses which satisfy the relationship
outermost layer thickness the core, the envelope layer-encased sphere, the intermediate layer-encased sphere and the ball have respective initial velocities
which satisfy the relationship

ball initial velocity initial velocity of envelope layer-encased sphere
>core initial velocity; and

the core has a hardness profile which, expressed in terms of JIS-C hardness, satisfies the following relationships:
22?core surface hardness (Cs)?core center hardness (Cc),
7?[hardness at a position 5 mm from core center (C5)?core center hardness (Cc)]>0,and
[core surface hardness (Cs)?core center hardness (Cc)]/[hardness at a position midway between core surface and core center
(Cm)?core center hardness (Cc)]?3.

US Pat. No. 9,597,566

GOLF CLUB

Bridgestone Sports Co., L...

1. A golf club comprising:
a shaft having a tip end and a butt end;
a head mounted to the shaft on the tip end thereof, the head comprising a hosel having a hosel top end;
a grip mounted to the shaft on the butt end thereof, the grip having a tip end and a butt end;
a first vibration damping member arranged on a head side of the shaft along a longitudinal direction of the shaft, wherein
a first range of the shaft in which the first vibration damping member is arranged includes a position of the shaft corresponding
to the top end of the hosel of the head and has a length of 25 to 250 mm in the longitudinal direction of the shaft; and

a second vibration damping member arranged on a grip side of the shaft along the longitudinal direction of the shaft, wherein
a second range of the shaft in which the second vibration damping member is arranged includes a position of the shaft corresponding
to the tip end of the grip and has a length of 150 to 250 mm in the longitudinal direction of the shaft,

wherein the grip has a shaft insertion hole extending along the longitudinal direction of the grip and has a damping member
holding recess on an interior wall of the shaft insertion hole to hold the second vibration damping member therein, the second
vibration damping member being arranged between the shaft and the grip,

wherein each of the first and second vibration damping members has a multilayered structure comprising at least two layers
of a core layer and a damping layer.

US Pat. No. 9,474,940

GOLF BALL HAVING OVAL DIMPLES

Bridgestone Sports Co., L...

1. A golf ball comprising oval dimples arranged on a surface thereof, each of the oval dimples having a long diameter DL and
a short diameter DS in a planar shape thereof, a relationship between the long diameter and the short diameter being defined
as a following formula (1):
DL?DS×1.15  (1),

each of the oval dimples further having a cross-sectional area DLA on a first cross section of the oval dimple along the long
diameter DL and a cross-sectional area DSA on a second cross section of the oval dimple along the short diameter DS, the cross-sectional
area DLA being surrounded by a line connecting both ends of the first cross section of the oval dimple and a bottom surface
thereof, the cross-sectional area DSA being surrounded by a line connecting both ends of the second cross section of the oval
dimple and a bottom surface thereof, a relationship between the cross-sectional area DLA and the cross-sectional area DSA
being defined as a following formula (2):

DLA?DSA  (2), and
a surface coverage SR of all dimples on the surface of the golf ball being at least 70%.

US Pat. No. 9,205,306

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a solid core having a spherical first layer, a second layer encasing the first
layer and a third layer encasing the second layer, and an intermediate layer and a cover which encase the solid core, wherein
the first to third layers of the solid core are each respectively formed of a rubber composition; letting (a) represent a
JIS-C cross-sectional hardness at a center of the first layer on a cross-section obtained by cutting the solid core in half,
(b) represent a JIS-C surface hardness of the first layer, (c) represent a JIS-C surface hardness of the second layer and
(d) represent a JIS-C surface hardness of the third layer, the hardnesses (a) to (d) satisfy the condition
cross-sectional hardness (a)surface hardness (d);

and the intermediate layer and the cover have Shore D material hardnesses which satisfy the condition
intermediate layer>cover,
wherein an organosulfur compound is included in each of the rubber compositions that form the first to third layers, the organosulfur
compound being included in amounts which satisfy the condition

first layer>second layer>third layer.

US Pat. No. 9,119,997

FERRULE AND GOLF CLUB

BRIDGESTONE SPORTS CO., L...

1. A ferrule and a hosel for a golf club comprising:
a hosel; and
a ferrule, wherein the ferrule comprises:
an upper body which projects from an upper end face of said hosel;
a diametrically reduced surface tapered upwards so that a central portion takes an upper position;
an inserted portion which is provided to project downwards from the upper body to be inserted into an interior of a hole in
said hosel; and

a groove which is provided circumferentially on an outer circumferential surface of the inserted portion, wherein:
a lower end portion of the inserted portion has a diameter which is smaller than that of an upper side of the inserted portion
above the groove;

the diametrically reduced surface is disposed between a lower end of the upper body and the inserted portion; and
a space is formed between the diametrically reduced surface and an upper end of said hosel.

US Pat. No. 9,079,081

IRON HEAD

Bridgestone Sports Co., L...

1. An iron head comprising:
a striking face;
a backside surface;
a sole surface;
a hosel;
a recess portion provided in an upper portion of the backside surface;
a protruding portion provided at a lower portion of the backside surface and projecting backward;
a first hollow portion provided on a heel side of the protruding portion; and
a second hollow portion disposed on a toe side and inside the protruding portion, said protruding portion including a middle
portion between the first hollow portion and the second hollow portion,

wherein said first hollow portion is disposed away from the second hollow portion so that a distance between the first hollow
portion and the second hollow portion in a direction from the heel side to the toe side gradually increases from an upper
surface of the protruding portion toward the sole surface, and

said cavity portion has a first maximum length in a vertical direction parallel with the striking face is set between 20%
and 50% of a second maximum length of the striking face in the vertical direction.

US Pat. No. 9,050,508

GOLF CLUB AND METHOD FOR ADJUSTING CHARACTERISTICS OF THE SAME

BRIDGESTONE SPORTS CO., L...

1. A golf club comprising:
a shaft;
a head attached to a leading end of the shaft; and
a shaft case having an approximately cylindrical shape, and including a shaft insertion hole which the leading end of the
shaft is inserted into and bonded to, an axis center of an outer periphery of the shaft case and an axis center of the shaft
being in a non-coaxial state, the shaft case being inserted into an inner hole of a hosel column of the head, the shaft case
being fixed to the hosel column with a bolt, wherein:

the shaft case includes a convex axis member provided at a bottom end of the shaft case, the convex axis member including
a female screw hole and a first engaging member that is provided on an outer periphery of the convex axis member;

the inner hole of the hosel column has a diameter that is larger on a lower side of a step face that is provided at some midpoint
in an axis center direction of the inner hole than at the step face;

the hosel column includes a plurality of concave threads that are provided on the lower side of the step face on an inner
periphery of the hosel column, and extend to a lower end of the hosel column, upper ends of some of the plurality of concave
threads being disposed lower than the step face;

a bolt holder having a cylindrical shape is provided at a lower portion of the inner hole of the hosel column, the bolt holder
being arranged to connect with either one of the step face and the upper ends of the concave threads;

the bolt is disposed within the bolt holder;
a reduced-diameter face is provided at some midpoint in an up and down direction inside of the bolt holder, and the inside
of the bolt holder has a diameter that is larger on a lower side of the reduced-diameter face than on an upper side of the
reduced-diameter face;

a head portion of the bolt is in contact with the reduced-diameter face from the lower side, and a threaded shaft portion
of the bolt extends upper than the step face to screw into the female screw hole;

a second engaging member is provided on the upper side of the reduced-diameter face on an inner periphery of the bolt holder,
the second engaging member being arranged to be engaged with the first engaging member to prevent the shaft case from rotating;

a flange member is provided at a top end of the shaft case, and a spacer is provided insertable and removable between the
flange member and an upper end of the hosel column;

the bolt holder is arranged to connect with the step face when the spacer is inserted between the flange member of the shaft
case and the hosel column; and

the bolt holder is arranged to connect with the upper ends of the concave threads when the spacer is removed.

US Pat. No. 10,046,208

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one or more layer encasing the core, wherein, letting HU-A and HU-B be respectively the Martens hardnesses measured at positions 100 ?m and 200 ?m inward from a surface of an outermost layer of the cover and toward a center of the core, and letting HU C be the Martens hardness measured at a position 100 ?m from an inner side of the outermost cover layer and toward the surface, HU-A or HU-B is harder than HU-C, and wherein letting EIT-A (MPa) be the elastic modulus measured at a position 100 ?m inward from the surface of the outermost cover layer and toward the center of the core, the golf ball satisfies the following formula:(EIT-A)?24×(HU-C)?140.

US Pat. No. 9,220,954

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A wood type golf club head comprising:
a face portion including:
a first region, having a maximum thickness, and having a centroid of the face portion;
a second region having a minimum thickness; and
an inclined portion, having continuously varying thickness, disposed between the first region and the second region; and
a head main body having a hollow portion, wherein:
the first region, the second region and the inclined portion are disposed on a back of the face portion;
an area of the first region is 2 to 12% of an area of the face portion;
an area of the second region is 15 to 60% of the area of the face portion; and
a head volume defined by the face portion and the head main body is within a range from 300 to 470 cm3,

wherein a difference in thickness between the first region and the second region is 0.8 to 3.5 mm.

US Pat. No. 9,174,093

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the
envelope layer, and a cover which encases the intermediate layer and has formed on a surface thereof a plurality of dimples,
wherein the core is made primarily of a rubber material and has a diameter of at least 31 mm, the envelope layer and intermediate
layer are each made primarily of the same or different resin materials and the cover is made primarily of polyurethane, the
material hardness of the cover is softer than the material hardness of the intermediate layer by the hardness difference of
at least 1 but less than 40 in Durometer D hardness units; the envelope layer and intermediate layer have thicknesses which
satisfy the relationship
intermediate layer thickness?envelope layer thickness;and the core, envelope layer, intermediate layer and cover have hardness relationships which satisfy the following three conditions:
(1) core surface hardness?envelope layer surface hardness,
(2) cover material hardness (3) core surface hardness?core center hardness (JIS-C)?11.
US Pat. No. 9,095,747

GOLF BALL COMPOSITION AND GOLF BALL

BRIDGESTONE SPORTS CO., L...

11. A golf ball composition comprising a resin composition which is comprised of:
(A) one or more acid-containing polymers selected from the group consisting of an olefin-unsaturated carboxylic acid random
copolymer and/or an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymer, and a metal ion
neutralization product of an olefin-unsaturated carboxylic acid random copolymer and/or a metal ion neutralization product
of an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymer;

(B) a high-pressure low-density polyethylene; and
(C) an organic peroxide,
wherein component B has a melt flow rate, as measured in accordance with JIS K6760 at a test temperature of 190° C. and a
test load of 21 N (2.16 kgf), of at least 5 g/10 min; component A and component B have a compounding ratio therebetween, expressed
as the weight ratio A/B, of between 95/5 and 50/50; component C is included in an amount, per 100 parts by weight of the total
amount of resin components, of at least 0.001 part by weight and not more than 3 parts by weight; and component B and component
C have a compounding ratio therebetween, expressed as the weight ratio C/B, in the range of from 0.2×10?2 to 6.0×10?2, and wherein the resin components consist of component A and component B.

US Pat. No. 9,770,629

GOLF BALL RESIN COMPOSITION AND GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball resin composition comprising a base resin wherein, in dynamic viscoelasticity measurement,
letting E?(1) be the storage modulus of the base resin measured at a temperature of 23° C., an oscillation frequency of 15
Hz and 1.0% strain, and T(1) be the tan ? defined in terms of the ratio between storage modulus and loss modulus of the base
resin measured under the same conditions, E?(1) and T(1) satisfy the following ranges:

1 MPa
T(1)>0.16; and

letting E?(10) be the storage modulus of the base resin measured at a temperature of 23° C., an oscillation frequency of 15
Hz and 10% strain, and T(10) be the tan ? defined in terms of the ratio between storage modulus and loss modulus of the base
resin measured under the same conditions, E?(10) and T(10) satisfy the following ranges:

1 MPa
T(10)>0.2,
wherein the golf ball resin composition does not comprise a saponified polymer and/or a polyamide;
wherein the base resin is a styrene-butadiene-styrene block copolymer and the amount of the styrene-butadiene-styrene block
copolymer is 100 wt % of the overall resin composition.

US Pat. No. 9,541,483

CONTACT STATE OBSERVATION APPARATUS OF GOLF BALL AND CONTACT STATE OBSERVATION METHOD OF GOLF BALL

BRIDGESTONE CORPORATION, ...

1. A contact state observation apparatus of golf ball comprising:
launching means for launching a golf ball;
an impact plate with which the launched golf ball impacts; and
imaging means, provided ahead of a launching direction of the golf ball and opposite to the launching means across the impact
plate, and facing the opposite direction of the launching direction of the golf ball, for shooting an image of a contact state
between the golf ball and the impact plate at the time of impact of the golf ball,

wherein the impact plate has, in a part where the golf ball impacts, an observation hole whose area in a surface facing the
launching means is smaller than a contact area with the impacting golf ball, and

the imaging means shoots the image of the contact state of the golf ball through the observation hole to observe the contact
phenomenon of the golf ball.

US Pat. No. 9,211,445

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material
molded under heat from a rubber composition comprising the following components (A) to (C):
(A) a base rubber,
(B) an organic peroxide, and
(C) water;and the product P×E of the difference P (mol/m3) in crosslink density between a surface of the core and a center of the core, as measured based on a toluene swelling test,
multiplied by the deflection E (mm) of the core when compressed under a final load of 1,275 N (130 kgf) from an initial load
state of 98 N (10 kgf) is at least 28×102 mol/m3·mm.
US Pat. No. 9,649,537

SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A solid golf ball comprising a core of at least one layer and a cover of at least one layer, wherein at least one layer
of the core is formed primarily of polybutadiene and includes at least 0.05 part by weight of a polyurethane resin powder
having an average particle diameter of not more than 2 mm per 100 parts by weight of rubber component, and at least one layer
of the cover is formed primarily of polyurethane;
wherein the polyurethane resin powder has a melting point which is higher than a vulcanization temperature of the core; and
wherein the polyurethane resin powder is composed primarily of a thermoplastic polyurethane and has a melting point of from
150 to 320° C.

US Pat. No. 9,636,548

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the
envelope layer, and a cover layer encasing the intermediate layer and having formed on an outer surface thereof a plurality
of dimples,
wherein the core is a two-layer core consisting of an inner core layer formed primarily of a base rubber and an outer core
layer formed primarily of the same or a different base rubber, the envelope layer, the intermediate layer and the cover layer
are each composed of at least one layer and formed primarily of a synthetic resin material, and conditions (1) to (3) below
are satisfied:

(initial velocity of envelope layer-encased sphere?initial velocity of core)>?0.2 m/s;  (1)
(initial velocity of intermediate layer-encased sphere?initial velocity of envelope layer-encased sphere)>0.4 m/s; and  (2)
surface hardness (Shore D) of envelope layer-encased spheresurface
hardness (Shore D) of ball.  (3)

US Pat. No. 9,623,298

IRON TYPE GOLF CLUB HEAD

BRIDGESTONE SPORTS CO., L...

15. An iron type golf club head, comprising:
a body part that is provided with a face surface and a sole surface; and
a hosel part that is connected to the body part, wherein
a lower part of a back surface of the body part is an expansion part that expands rearward,
a slit is formed, which penetrates the expansion part from an upper surface to a lower surface of the expansion part, the
slit having two openings facing each other, one being an upper opening positioned on the upper surface and the other being
a lower opening positioned on the sole surface,

an elastic body is arranged at the upper opening of the slit such that an inside of the slit is empty below the elastic body,
the iron type golf club head further comprises a supporting plate that is arranged on an upper part of the back surface, and
a lower edge of the supporting plate presses down an upper part of the elastic body so that the supporting plate prevents
the elastic body from dropping off from the club head.

US Pat. No. 9,227,111

MULTI-PIECE SOLID GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A multi-piece solid golf ball having a six-layer structure, wherein the six-layer structure comprises a core, an envelope
layer encasing the core, an intermediate layer encasing the envelope layer, and a cover which encases the intermediate layer
and has formed on a surface thereof a plurality of dimples, wherein the envelope layer consists of an inner envelope layer,
an intermediate envelope layer and an outer envelope layer; the inner, intermediate and outer envelope layers, the intermediate
layer and the cover are each formed primarily of a resin material which may be of the same or different types; the core is
formed primarily of a rubber material; the cover has a material hardness (Shore D) and the core has a center hardness (Shore
D) which satisfy the following condition:
cover material hardness?core center hardness;and one of the inner layers has a material hardness (Shore D) which is higher than either or both of the cover material hardness
(Shore D) and the average core hardness (defined as the arithmetic mean of the core surface hardness and the core center hardness),
wherein the intermediate envelope layer is formed so as to be harder than the inner envelope layer and to have a material
hardness difference (Shore D) with the inner envelope layer of from 1 to 6, and so as to be softer than the outer envelope
layer and to have a material hardness difference (Shore D) with the outer envelope layer of from 1 to 6,

and wherein the following relationships are satisfied:
intermediate envelope layer material hardness>average core hardness>core center hardness, and
(outer envelope layer thickness)/(intermediate envelope layer thickness) is from 1.1 to 1.4.

US Pat. No. 9,174,100

HOLLOW GOLF CLUB HEAD AND METHOD OF MANUFACTURING THE SAME

Bridgestone Sports Co., L...

1. A hollow golf club head including a metal plate portion provided with a thin portion and a thick portion, wherein
a medium thick portion having an intermediate thickness between a thickness of the thin portion and a thickness of the thick
portion is formed at a boundary portion between the thin portion and the thick portion,

the metal plate portion includes a crown portion,
the medium thick portion is formed around the entire thin portion,
the thin portion is formed at the central portion of the crown portion to occupy 30% to 90% of an area of the crown portion,
and

a width of the medium thick portion is 5 to 25 mm, the thickness of the thin portion is 30% to 70% of the thickness of the
thick portion, and the thickness of the medium thick portion is 50% to 90% of the thickness of the thick portion.

US Pat. No. 9,096,754

GOLF BALL COMPOSITION AND GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A golf ball composition comprising a resin composition which is comprised of:
(A) one or more acid-containing polymers selected from the group consisting of an olefin-unsaturated carboxylic acid random
copolymer and/or an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymer, and a metal ion
neutralization product of an olefin-unsaturated carboxylic acid random copolymer and/or a metal ion neutralization product
of an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymer;

(B) a high-pressure low-density polyethylene; and
(C) an organic peroxide,
wherein, letting Pi be the surface area of a peak that appears in the range of 43 to 56° C. when measuring the resin composition
with a differential scanning calorimeter and Pz be the surface area of a peak that appears in the range of 43 to 56° C. when
measuring the same resin composition, exclusive of component C, with a differential scanning calorimeter, the golf ball composition
satisfies the following condition:

0
wherein the resin components consist of component A and component B.

US Pat. No. 9,776,046

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one or more layer encasing the core, wherein the cover has an outermost layer
molded of an ether type thermoplastic polyurethane material and the surface of the cover is treated with an isocyanate compound
comprising polymethylene polyphenyl polyisocyanate that is free of organic solvent, and the pickup of the isocyanate compound
is in the range of 0.01 to 1.0 g, and wherein, letting the absorbance peak heights near a wave number of 1512 cm?1 measured by the attenuated total reflectance method in Fourier transform infrared absorption spectroscopy (FT-IR/ATR spectroscopy)
at an outside portion and an inside portion of the outermost cover layer be respectively P1 and P2, the value P1-P2 is at least 0.02.
US Pat. No. 9,724,568

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material
molded under heat from a rubber composition comprising the following components A to C:
(A) a base rubber,
(B) an organic peroxide, and
(C) water and/or a metal monocarboxylate,and has a hysteresis loss of 50% or less when compressed at a load cell speed of 500 mm/min and under a constant load of 5,000
N.

US Pat. No. 9,433,832

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer, an intermediate layer and a cover,
wherein the core, envelope layer, intermediate layer and cover have respective surface hardnesses which satisfy the relationship:
core surface hardness>envelope layer surface hardness the surface hardness of the core and the surface hardness of the envelope layer, expressed in terms of Shore D hardness, satisfy
the relationship:

?14?(envelope layer surface hardness?core surface hardness)??5;
the surface hardness of the intermediate layer and the surface hardness of the cover, expressed in terms of Shore D hardness,
satisfy the relationship:

5?(cover surface hardness?intermediate layer surface hardness)?15;
the ball and a sphere composed of the core covered peripherally by the envelope layer and the intermediate layer (intermediate
layer-encased sphere) have respective initial velocities (m/s) which satisfy the relationship:

?1.0 m/s?(ball initial velocity?intermediate layer-encased sphere initial velocity)?0 m/s;
the intermediate layer-encased sphere and a sphere composed of the core covered peripherally by the envelope layer (envelope
layer-encased sphere) have respective initial velocities (m/s) which satisfy the relationship:

?0.2 m/s?(intermediate layer-encased sphere initial velocity?envelope layer-encased sphere initial velocity); and
the ball satisfies the relationship:
0.86?A/B?0.98,
where A is the deflection (mm) of the ball when compressed under a final load of 1,275 N (130 kgf) from an initial load of
98 N (10 kgf) and B is the deflection (mm) of the intermediate layer-encased sphere when compressed under a final load of
1,275 N (130 kgf) from an initial load of 98 N (10 kgf), and wherein the surface hardness of the envelope layer and the surface
hardness of the intermediate layer, expressed in terms of Shore D hardness, satisfy the relationship:

20?(intermediate layer surface hardness?envelope layer surface hardness)?30.

US Pat. No. 9,914,020

GOLF BALL HAVING OVAL DIMPLES

Bridgestone Sports Co., L...

1. A golf ball comprising oval dimples arranged on a surface thereof, each of the oval dimples having a long diameter DL and
a short diameter DS in a planar shape thereof,
each of the oval dimples further having a depth DPL on a first cross section of the oval dimple along the long diameter DL
and a depth DPS on a second cross section of the oval dimple along the short diameter DS, the depth DPL being a distance taken
on the first cross section along the long diameter DL from a first line connecting both ends of the first cross section of
the oval dimple to a deepest point of a dimple bottom surface, the depth DPS being a distance taken on the second cross section
along the short diameter DS from a second line connecting both ends of the second cross section of the oval dimple to a deepest
point of a dimple bottom surface, a relationship between the depth DPL and the depth DPS being defined as a following formula
(1):

DPS>DPL  (1),
each of the oval dimples further having a cross-sectional area DLA on the first cross section of the oval dimple along the
long diameter DL and a cross-sectional area DSA on the second cross section of the oval dimple along the short diameter DS,
the cross-sectional area DLA being surrounded by the first line connecting both ends of the first cross section of the oval
dimple and the bottom surface thereof, the cross-sectional area DSA being surrounded by the second line connecting both ends
of the second cross section of the oval dimple and the bottom surface thereof, a relationship between the cross-sectional
area DLA and the cross-sectional area DSA being defined as a following formula (2):

DLA?DSA  (2), and
a surface coverage SR of all dimples on the surface of the golf ball being at least 70%.

US Pat. No. 9,993,701

GOLF CLUB HEAD

BRIDGESTONE SPORTS CO., L...

1. A golf club head having a hollow structure, the golf club head comprising:a face defining a front portion of the golf club head and including a face surface defining a ball-striking surface;
an internal surface including an internal depression, the internal depression at least partly extending along an outline of the face surface;
an external surface including an external depression, the external depression at least partly extending along the outline of the face surface;
a crown defining a top portion of the golf club head; and
a sole defining a bottom portion of the golf club head,
wherein the external depression includes a toe-side external depression closer to a toe of the golf club head than to a heel of the golf club head, and a heel-side external depression closer to the heel than to the toe,
wherein the internal depression includes a first end closer to the toe than to the heel, and a second end closer to the heel than to the toe,
wherein the toe-side external depression includes a third end closer to the crown than to the sole and a fourth end closer to the sole than to the crown, the third end being positioned near the first end,
wherein the heel-side external depression includes a fifth end closer to the crown than to the sole and a sixth end closer to the sole than to the crown, the fifth end being positioned near the second end, and
wherein a minimum distance between the third end and the first end is more than or equal to 3 mm and less than or equal to 30 mm, and a minimum distance between the fifth end and the second end is more than or equal to 3 mm and less than or equal to 30 mm.

US Pat. No. 9,968,829

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a two-layer core consisting of an inner layer and an outer layer, a cover, at least one intermediate layer between the core and the cover, and a paint film layer formed on a surface of the cover, wherein each layer of the two-layer core is formed primarily of a rubber composition; the intermediate layer and the cover are each formed primarily of a resin material; the core has a hardness profile which satisfies the conditions:Css?Cc?25, and  (i)
(Css?C10)/(C10?Cc)?5.0,  (ii)
where Cc is the JIS-C hardness at a center of the inner core layer, C10 is the JIS-C hardness at a position 10 mm from the center of the inner core layer, Cs is the JIS-C hardness at a surface of the inner core layer, and Css is the JIS-C hardness at a surface of the outer core layer; and a sphere consisting of the core encased by the intermediate layer has a surface hardness which is higher than a surface hardness of the ball; and
wherein the thickness of the outer core layer is from 0.5 to 1.67 mm.

US Pat. No. 9,873,024

GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A golf ball comprising a core and a cover of at least one layer, wherein the core has a cross-sectional hardness which,
letting R (mm) be a radius of the core, A be a JIS-C hardness at a center of the core, B be a JIS-C hardness at a position
R/3 mm from the core center, C be a JIS-C hardness at a position R/1.8 mm from the core center, D be a JIS-C hardness at a
position R/1.3 mm from the core center, and E be a JIS-C hardness at a surface of the core, satisfies formulas (1) to (4)
below:
D?C?7  (1)

C?B?7  (2)

(D?C)?(C?B)?7  (3)

E?A?16,  (4)

wherein the core is formed from a material molded under heat and is formed from a rubber composition comprising a base rubber,
a crosslinking initiator, and water,

wherein the difference between the crosslink density at the core surface and the crosslink density at the core center, both
of which are crosslink densities measured based on a toluene swelling test, is at least 9×102 mol/m3, and

wherein the base rubber consists of polybutadiene synthesized with a rare-earth catalyst and/or a polybutadiene synthesized
with a nickel catalyst.

US Pat. No. 9,849,346

GOLF BALL AND METHOD OF MANUFACTURE

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one or more layer encasing the core, wherein the core is formed of a rubber
composition comprising a base rubber, a co-crosslinking agent, an organic peroxide and a blowing agent, has a center portion
and a surface portion that are unfoamed regions, and has an intermediate portion containing a foamed region.

US Pat. No. 9,415,271

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core formed of a center core encased by an envelope layer, a cover having a
plurality of dimples on a surface thereof, and one or more intermediate layer disposed between the core and the cover, wherein
the center core is composed primarily of a thermoplastic polyester elastomer and the envelope layer is composed primarily
of a rubber composition, the radius r (mm) of the center core satisfies the condition 5?r?15, and the cross-sectional hardness
(JIS-C hardness) of the core satisfies the following conditions:
(1) the hardness difference between the core center and any point located up to (r?2) mm from the core center is 2 or less;
(2) the hardness Hr+1 at a point located (r+1) mm from the core center and the hardness Hr?1 at a point located (r?1) mm from the core center satisfy the relationship 10?Hr+1?Hr?1?35;

(3) the hardness HR?2 at a point located 2 mm inside of the core surface and the hardness Hr+1 at a point located (r+1) mm from the core center satisfy the relationship 1?HR?2?Hr+1?7;

(4) the difference between the core surface hardness (HR) and the core center hardness (H0) satisfies the relationship 22?HR?H0?40,

and wherein the core center hardness (H0) satisfies the condition 52?H0?70.

US Pat. No. 9,421,434

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head having a face part, a sole part, a side part, a crown part and a hosel part, all of which surround a hollow
part, comprising:
a penetration hole that is provided on the crown part, penetrating the crown part so that the hollow part is connected to
an outer atmosphere of the golf club head; and

a non-metal cover that is provided over the penetration hole, wherein
three or more recess parts, each of which forms a recess, are provided on a surface of the non-metal cover,
the recess part extends in a toe-heel direction of the head,
these recess parts extending in the toe-heel direction are arranged in a face-back direction, which is perpendicular to the
toe-heel direction, with an interval,

one of the recess parts, which is not the closest to the face part or farthest from the face part in the face-back direction,
is positioned above the penetration hole.

US Pat. No. 9,138,619

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head comprising:
a face portion;
a crown portion, furrows being formed on an interior surface of at least a part of the crown part in a mesh-like pattern;
a side portion;
a sole portion, at least a front part of the sole portion being made of metal, and furrows being formed on an interior surface
of at least a part of the front part in a mesh-like pattern; and

a hosel portion,
wherein the furrows of the crown portion are formed on a front part thereof, and a dent forming area having a plurality of
dents is formed behind the furrows of the crown portion,

wherein furrows are further formed on at least a part of an interior surface of the face portion in a mesh-like pattern,
wherein the mesh-like pattern of the furrows of the face portion comprises a polygonal pattern, and the furrows of the face
portion are entirely formed on the interior surface thereof so that the average area of polygons in the polygonal pattern
is larger on a central area of the face portion than on a toe side and a heel side of the face portion.

US Pat. No. 9,539,478

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head, comprising:
a head body that has a recess part at a front portion thereof,
a face plate that is in a plate shape and arranged in the recess of the head body, a front surface of the face plate being
for hitting a ball, and

an elastic body that is made of an elastically deformable material and intervenes between the head body and the face plate,
the elastic body being fixed to the head body and the face plate so that the face plate is slidable in the recess with respect
to the head body, wherein

a hardness of the material of the elastic body is
equal to or greater than Shore A Hardness 10 and
equal to or smaller than Shore D Hardness 80,
a front side elastic body arrangement surface of the head body to which the elastic body is fixed is not parallel to the front
surface of the face plate,

the golf club head is an iron type golf club head, and
an upper edge of the elastic body is arranged closer to a bottom of the head body than an upper edge of the face plate is,
the upper edge of the elastic body, the upper edge of the face plate and the bottom of the head body being determined is an
up-down direction (Z) of the golf club head.

US Pat. No. 9,421,426

MULTI-PIECE SOLID GOLF BALL

BRIDGESTONE SPORTS CO., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the
envelope layer, and an outer layer which encases the intermediate layer and has formed on a surface thereof a plurality of
dimples,
wherein the core is made of an elastomer, the envelope layer is formed of an inner envelope layer and an outer envelope layer,
the intermediate layer is formed of an inner intermediate layer and an outer intermediate layer, and, letting the average
hardness of the core be expressed by the following formula:

average core hardness (Shore D)=[core surface hardness (Shore D)+core center hardness (Shore D)]/2,

the outer layer has a hardness (Shore D) which is higher than the average core hardness and each of the envelope layers and
the intermediate layers is softer than the outer layer,

wherein the core, envelope layers, intermediate layers and outer layer have thicknesses which satisfy the following relationships:
0.75?(outer intermediate layer thickness+inner intermediate layer thickness)/(outer envelope layer thickness+inner envelope
layer thickness)?1.1, and

outer layer thickness<(outer intermediate layer thickness+inner intermediate layer thickness+outer envelope layer thickness+inner
envelope layer thickness)
wherein the outer layer and the outer intermediate layer have Shore D hardnesses which satisfy the following relationship:
3?(outer layer hardness?outer intermediate layer hardness)?20,
wherein the outer envelope layer and the inner envelope layer have Shore D hardnesses which satisfy the following relationship:
1?(outer envelope layer hardness?inner envelope layer hardness)?10, and
wherein the outer and the inner intermediate layers have Shore D hardnesses which satisfy the following relationship:
1?(outer intermediate layer hardness?inner intermediate layer hardness)?10.

US Pat. No. 9,415,272

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising:
a core with a two-layer structure composed of an inner layer and an outer layer, and
a cover of three or more layers which is formed over the core and includes an envelope layer encasing the core, an intermediate
layer encasing the envelope layer, and an outermost layer encasing the intermediate layer,

wherein the core inner layer is formed primarily of one or more type of thermoplastic elastomer selected from the group consisting
of polyester, polyamide, polyurethane, olefin and styrene-type thermoplastic elastomers, and has a material hardness, expressed
in terms of Shore D hardness, of from 10 to 50;

the core outer layer is formed of a rubber composition consisting primarily of a rubber material, and has a surface hardness,
expressed in terms of Shore D hardness, of from 50 to 70; and

the intermediate layer has a higher surface hardness (Shore D hardness) than the outermost layer,
wherein the core, the envelope layer, the intermediate layer and the outermost layer have Shore D hardnesses which satisfy
the following conditions:

envelope layer surface hardnessoutermost layer surface hardness, and
core inner layer center hardness wherein the core and the envelope layer have thicknesses which satisfy the following condition:
core inner layer radius>core outer layer thickness>envelope layer thickness,
wherein the difference between the surface hardness of the core inner layer and the surface hardness of the core outer layer,
the value expressed as (core outer layer surface hardness)?(core inner layer surface hardness), is set to a Shore D hardness
value of from 1 to 39.

US Pat. No. 9,855,466

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material
molded under heat from a rubber composition comprising the following components A to C:
(A) a base rubber,
(B) an organic peroxide, and
(C) water and/or a metal monocarboxylate,
and has a hardness profile which, letting Cc be a JIS-C hardness at a center of the core, C10 be a JIS-C hardness at a position
10 mm from the core center and Cs be a JIS-C hardness at a surface of the core, satisfies the following conditions (1) to
(3):

(1) 0?C10?Cc?10
(2) C10?Cc (3) 20?Cs?C10
with the proviso that Cc is at least 50 and Cs is not more than 80,
wherein the core, following vulcanization, has a higher moisture content at the core center than at the core surface.

US Pat. No. 9,662,543

GOLF BALL AND METHOD OF MANUFACTURE

Bridgestone Sports Co., L...

1. A golf ball comprising a core of at least one layer and a cover of at least one layer, wherein a butyl rubber ionomer-containing
layer is formed on a surface of the core, and wherein at least one layer of the core comprises components I to III below:
(I) a base rubber,
(II) an organic peroxide, and
(III) water.
US Pat. No. 9,278,259

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core encased by a cover of one or more layer, wherein the cover is formed of a material which
is composed primarily of a thermoplastic polyurethane material and includes also a lubricant composed entirely of a montanic
acid ester,
wherein the thermoplastic polyurethane material and the lubricant have a compounding ratio by weight therebetween, expressed
as thermoplastic polyurethane material: lubricant, of from 100:0.3 to 100:0.6.

US Pat. No. 9,764,196

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material
molded under heat from a rubber composition comprising the following components (A) to (C-2):
(A) a base rubber,
(B) an organic peroxide, and
(C-1) a metal monocarboxylate and (C-2) a metal dicarboxylate;and the product P×E of the difference P (mol/m3) in crosslink density between a surface of the core and a center of the core, as measured based on a toluene swelling test,
multiplied by the deflection E (mm) of the core when compressed under a final load of 1,275 N (130 kgf) from an initial load
state of 98 N (10 kgf) is at least 28×102 mol/m3·mm.

US Pat. No. 9,636,547

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, a cover and an intermediate layer therebetween,
wherein the core, a sphere composed of the core and the intermediate layer which peripherally encases the core (intermediate
layer-encased sphere), and the ball have respective surface hardnesses, expressed in terms of Shore D hardness, which satisfy
the relationship

ball surface hardness?surface hardness of intermediate layer-encased sphere?core surface hardness;
the intermediate layer and the cover have respective thicknesses which satisfy the relationship
(thickness of intermediate layer?thickness of cover)?0; and
the core has a hardness profile which, expressed in terms of JIS-C hardness, satisfies the following relationships:
22?core surface hardness (Cs)?core center hardness (Cc),

5?[hardness at a position 5 mm from core center (C5)?core center hardness (Cc)]>0, and

[core surface hardness (Cs)?core center hardness (Cc)]/[hardness at a position midway between core surface and core center (Cm)?core center hardness (Cc)]?4.

US Pat. No. 9,597,560

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A wood type golf club head comprising:
a face portion;
a crown portion;
a sole portion;
a side portion between said crown portion and said sole portion;
a hosel portion in which a shaft is inserted, said hosel portion being provided on a heel side of the golf club head; and
an extended portion that extends from said hosel portion to a back side of the golf club head,
wherein said extended portion includes a face side end portion on a face portion side and a rear end portion on the back side,
out of a heel-side portion and a toe-side portion of said hosel portion, said face side end portion is connected to the heel-side
portion,

said rear end portion is located on a toe side with respect to said face side end portion
said hosel portion has a cylindrical shape and includes a concave portion formed in an outer surface of said hosel portion
on the toe side,

said side portion includes a heel-side portion to which said extended portion is connected, and
said extended portion includes a heel-side side surface that is flush with an outer surface of said hosel portion and an outer
surface of said heel-side portion of said side portion.

US Pat. No. 9,744,735

METHOD FOR FORMING GOLF BALL AND MOLD THEREFOR

BRIDGESTONE SPORTS CO., L...

1. A method for forming a golf ball, comprising:
providing a core member comprising a core of a golf ball into a cavity of a mold so that the core member is supported by a
movable holding pin disposed in the cavity of the mold;

forming a layer on an outer periphery of the core member by injecting a material of the layer into the cavity of the mold;
retracting the holding pin from the cavity into the mold during the injection of the material until a tip end face of the
holding pin which is in contact with the core member is located at a depth of at least about 0.2 mm from a cavity wall surface
of the mold so that a portion projecting from a surface of the layer is formed by the tip end face of the holding pin, the
projecting portion having a height of at least about 0.2 mm; and removing the projecting portion from the surface of the layer.

US Pat. No. 9,593,253

RESIN COMPOSITION FOR GOLF BALLS

Bridgestone Sports Co., L...

9. A resin composition for golf balls comprising:
(A) (I) an olefin-C3-8 ?,?-unsaturated carboxylic acid copolymer or a metal neutralization product thereof, (II) an olefin-C3-8 ?,?-unsaturated carboxylic acid-C3-8 ?,?-unsaturated carboxylic acid ester terpolymer or a metal neutralization product thereof, or both (I) and (II);

(B) isocyanuric acid or a haloisocyanuric acid;
(C) a fatty acid or a fatty acid metal salt, and
a colorant which is a fluorescent dye and is included in an amount of from 0.03 to 0.2 part by weight per 100 parts by weight
of a base resin,
wherein component A comprises at least part of a base resin of the composition.

US Pat. No. 9,504,885

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A wood type golf club head including, a crown portion on an upper side of the head, a sole portion on the lower side of
the head and a face portion between the crown portion and the sole portion, wherein
a plurality of grooves arrayed in a vertical direction of the face portion are formed in the face portion,
a depth of the plurality of grooves is less than 0.025 mm, and
when pitches between grooves, among the plurality of grooves, that are adjacent in the vertical direction of the face portion
are represented by P1, P2, . . . , Pn sequentially from an upper side to a lower side of the face portion

P1?P2? . . . ?Pn, and

P1>Pn,

the face portion includes a lower area, a central area, and an upper area,
letting H be a height of the face portion in the vertical direction,
the lower area is an area of H×0.3 from a lower end of the face portion,
the central area is an area of H×0.7 from an upper end of the lower area, and
the upper area is an area from the upper end of the central area to the upper end of the face portion, and
when a surface roughness of the face portion is measured as an arithmetic mean roughness Ra using an average line in the vertical
direction,

an average value of the arithmetic mean roughness Ra of the lower area is 2 ?m or more,
the average value of the arithmetic mean roughness Ra of the central area is not less than 1 ?m and less than 2 ?m, and
the average value of the arithmetic mean roughness Ra of the upper area is less than 1 ?m.

US Pat. No. 9,901,789

GOLF CLUB HEAD WITH GROOVES SHALLOWER THAN SCORELINES AND GOOVE PITCH AND LENGTH

Bridgestone Sports Co., L...

1. A wood type golf club head including a face portion, a crown portion, and a sole portion, wherein
a plurality of scorelines are formed in the face portion,
a plurality of grooves having a depth shallower than a depth of the plurality of scorelines are formed in the face portion,
the depth of the plurality of grooves is less than 0.025 mm,
each pitch between adjacent grooves of the plurality of grooves ranges from 0.1 mm (inclusive) to 1 mm (inclusive), and
grooves on a side of the crown portion in the plurality of grooves have lengths longer than lengths of grooves on a side of
the sole portion in the plurality of grooves.

US Pat. No. 9,278,467

GOLF BALL MOLD AND GOLF BALL MANUFACTURING METHOD

BRIDGESTONE SPORTS CO., L...

1. A mold for molding golf balls, comprising a mold body configured as a plurality of mold parts which have at least a parting
surface defining a parting line along a golf ball equator and removably mate to form a cavity having an inner wall with a
plurality of dimple-forming protrusions thereon, and a support pin which is extendable into and retractable from the cavity,
the support pin extending into the cavity to support a center sphere and an end face of the support pin defining a portion
of the cavity inner wall when the support pin is in a retracted state,
wherein the support pin comprises a pin body which extends into the cavity to support the center sphere and has an end face
that defines a portion of the cavity inner wall when the support pin is in a retracted state, and a guide body which is of
larger cross-section than the pin body and has an end face from which the pin body projects;

the mold body has formed therein a pin insertion hole comprising a pin insertion portion into which the pin body fits and
a guide portion into which the guide body fits; and

the guide body and the guide portion have a gap therebetween and the pin body and the pin insertion portion have a gap therebetween,
such that the gap between the guide body and the guide portion is smaller than the gap between the pin body and the pin insertion
portion,

wherein the end face of the pin body includes a pole of the cavity and has a peripheral edge which intersects a parallel of
latitude at 10 degrees from the pole.

US Pat. No. 9,937,389

GOLF CLUB HEAD WITH GROOVES SHALLOWER THAN SCORELINES AND SURFACE FILM THICKNESS

BRIDGESTONE SPORTS CO., L...

1. A wood type golf club head including a face portion, a crown portion, and a sole portion, whereina plurality of scorelines are formed in the face portion,
a plurality of grooves having a depth shallower than a depth of the plurality of scorelines are formed in the face portion,
the depth of the plurality of grooves is less than 0.025 mm,
a film having a thickness not more than the depth of the plurality of grooves is formed on the face portion by a surface treatment, and
grooves on a side of the crown portion in the plurality of grooves have lengths longer than lengths of grooves on a side of the sole portion in the plurality of grooves.
US Pat. No. 9,637,625

GOLF BALL MATERIAL AND GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball material comprising
(A) one, two or more resin ingredients selected from the group consisting of olefin-unsaturated carboxylic acid random copolymers,
olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymers, metal ion neutralization products
of olefin-unsaturated carboxylic acid random copolymers and metal ion neutralization products of olefin-unsaturated carboxylic
acid-unsaturated carboxylic acid ester random copolymers;

(B) one, two or more resin ingredients selected from the group consisting of polyethylenes, ethylene-vinyl acetate copolymers
polyester elastomers, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene
naphthalate and polybutylene naphthalate; and

(C) an agent for compatibilizing components (A) and (B), wherein the compatibilizing agent (C) comprises:
(C-i) a base polymer made from a combination of two different types of resin, wherein one of the two different types of resin
is polyethylene and one of the two different types of resin is a polyester selected from the group consisting of polyester
elastomers, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate
and polybutylene naphthalate,

(C-ii) a hydrogenated diene polymer having at least one type of functional moiety selected from the group consisting of carboxyl,
acid anhydride, (meth)acryloyl, amino, alkoxysilyl, hydroxyl, isocyanate and oxazoline moieties, and

(C-iii) an olefinic polymer having at least one type of functional moiety selected from the group consisting of carboxyl,
acid anhydride, epoxy, (meth)acryloyl, amino, alkoxysilyl, hydroxyl, isocyanate and oxazoline moieties.

US Pat. No. 9,975,008

GOLF BALL AND METHOD OF MANUFACTURE

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one or more layer, wherein, letting the core have a diameter D (mm), the cover have a thickness T (mm), and the core and the golf ball have respective deflections E (mm) and B (mm) when compressed under a final load of 1,275 N (130 kgf) from an initial load state of 98 N (10 kgf), conditions (1) to (3) below are satisfied:30 ?D/T ?24,   (1)
3.9 ?E/T ?3.0, and   (2)
1.18 ?E/B ?1.09,   (3)and wherein E in formula (3) is from 4.4 to 6.0 mm and the initial velocity of the ball is from 76.5 to 77.724 m/s, andwherein the core has a hardness profile with, expressed in terms of JIS-C hardness, a core center hardness of 58±5, a hardness at a position 5 mm from the core center of 62±5, a hardness at a position 10 mm from the core center of 65±5, a hardness at a position 15 mm from the core center of 70±5, and a hardness on a surface of the core of 77±5.

US Pat. No. 9,908,007

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a rubber two-layer core consisting of an inner layer and an outer layer, a cover,
and at least one intermediate layer between the core and the cover, wherein the inner core layer has a diameter of at least
30 mm, the value obtained by subtracting a center hardness of the inner core layer from a surface hardness of the outer core
layer, expressed in terms of JIS-C hardness, is at least 25, the ball satisfies the relationship A/B?1.5, where A is the deflection
(mm) of the inner core layer when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf)
and B is the deflection (mm) of the two-layer core when compressed under a final load of 1,275 N (130 kgf) from an initial
load of 98 N (10 kgf), and the intermediate layer has a higher material hardness than the cover,
wherein the multi-piece solid golf ball satisfies the condition:
C10?C5?C5?Cc?Cs?C15?C15?C10,  (viii)

where Cc is the JIS-C hardness at a center of the core, C5 is the JIS-C hardness at a position 5 mm from the core center,
C10 is the JIS-C hardness at a position 10 mm from the core center, C15 is the JIS-C hardness at a position 15 mm from the
core center, and Cs is the JIS-C hardness at a surface of the core.

US Pat. No. 9,937,391

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A hollow golf club head having a face part, a sole part, a side part, a crown part, and a hosel part, comprising:one or more of inner ribs that are disposed on at least one of the sole part and the side part and that inwardly project from an inner surface of the one of the sole part and the side part,
one or more of outer ribs that are disposed on at least the one of the sole part and the side part and that outwardly project from an outer surface of the one of the sole part and the side part, wherein
one of the outer ribs is arranged between the inner ribs in a toe-to-heel direction,
a recess part, which is inwardly recessed, is provided on at least one of the sole part and the side part,
one of the outer ribs is arranged in the recess part, and
the recess part is arranged between two of the inner ribs in the toe-to-heel direction.

US Pat. No. 9,901,793

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A wood type golf club head comprising:
a crown portion;
a sole portion;
a side portion;
a face portion;
a plurality of interchangeable members; and
a plurality of attachment portions,
wherein said plurality of interchangeable members include at least
a first interchangeable member, and
a second interchangeable member,
said plurality of attachment portions include at least
a first attachment portion from which said first interchangeable member is detachable, and
a second attachment portion disposed at a portion different from said first attachment portion, from which said second interchangeable
member is detachable,

said first interchangeable member is detachable from said second attachment portion,
said second interchangeable member is detachable from said first attachment portion,
said first attachment portion is disposed in said sole portion,
said second attachment portion is disposed in said side portion on a back side,
said second attachment portion is disposed at a portion spaced apart from said first attachment portion at least in a face-back
direction and in a toe-heel direction,

said first interchangeable member is heavier than said second interchangeable member,
said first interchangeable member is a reinforcing member that abuts against only a lower portion in a rear surface of said
face portion and restricts deformation of the lower portion when said first interchangeable member is attached to said first
attachment portion,

said first interchangeable member does not abut against the rear surface of said face portion when said first interchangeable
member is attached to said second attachment portion,

said second interchangeable member is a member that does not abut against the rear surface of said face portion when said
second interchangeable member is attached to said first attachment portion,

said second interchangeable member does not abut against the rear surface of said face portion when said second interchangeable
member is attached to said second attachment portion,

in a first attachment mode, said first interchangeable member is attached to said first attachment portion and said second
interchangeable member is attached to said second attachment portion,

in a second attachment mode, said first interchangeable member is attached to said second attachment portion and said second
interchangeable member is attached to said first attachment portion,

in the second attachment mode:
an area having a high repulsion in said face portion is wider than in the first attachment mode;
a gravity depth of the head is deeper than in the first attachment mode; and
a moment of inertia of the head is larger than in the first attachment mode.

US Pat. No. 10,150,021

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A hollow golf club head that includes a face portion, comprising:a hollow head body;
a face member that forms the face portion; and
a connecting portion that is provided between the head body and the face member and connects the head body and the face member,
wherein the head body includes a front surface to which the face member is connected through the connecting portion,
the front surface of the head body includes:
an opening portion; and
a first concave portion formed around the opening portion and on which the connecting portion is arranged,
the back surface of the face member includes a second concave portion on which the connecting portion is arranged, and
the front surface of the head body includes a peripheral portion around the first concave portion, and
the connecting portion has a thickness to form a gap between the peripheral portion and the back surface of the face member.

US Pat. No. 10,058,742

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the envelope layer, and an outermost layer encasing the intermediate layer,wherein the sphere obtained by peripherally encasing the core with the envelope layer (envelope layer-encased sphere), the sphere obtained by peripherally encasing the envelope layer with the intermediate layer (intermediate layer-encased sphere), and the ball have respective surface hardnesses, expressed in terms of Shore D hardness, which satisfy the relationship
ball surface hardnesssurface hardness of envelope layer-encased sphere;the intermediate layer and the outermost layer have respective thicknesses which satisfy the relationshipoutermost layer thicknessinitial velocity of envelope layer-encased sphere>core initial velocity; andthe core has a hardness profile which, expressed in terms of JIS-C hardness, satisfies the following relationships:7?[hardness at a position 5 mm from core center(C5)?core center hardness(Cc)]>0,
and
[core surface hardness(Cs)?core center hardness(Cc)]/[hardness at a position midway between core surface and core center(Cm)?core center hardness(Cc)]3, andwherein the core center hardness (Cc) is not more than 65, expressed in terms of JIS-C hardness.

US Pat. No. 9,993,691

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the envelope layer, and a cover layer encasing the intermediate layer and having formed on an outer surface thereof a plurality of dimples,wherein the core is a two-layer core consisting of an inner core layer formed primarily of a base rubber and an outer core layer formed primarily of the same or a different base rubber, the diameter of the overall core is from 35.3 to 39 mm, the envelope layer, the intermediate layer and the cover layer are each composed of at least one layer and formed primarily of a synthetic resin material, the initial velocity of the ball is not less than 77.2 m/s, and conditions (1) to (3) below are satisfied:
(initial velocity of envelope layer-encased sphere?initial velocity of core)>?0.4 m/s;  (1)
(initial velocity of intermediate layer-encased sphere?initial velocity of envelope layer-encased sphere)>0.4 m/s; and  (2)
surface hardness (Shore D) of envelope layer-encased spheresurface hardness (Shore D) of ball.  (3)

US Pat. No. 10,046,207

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, a cover and an intermediate layer therebetween,wherein the core, a sphere composed of the core and the intermediate layer which peripherally encases the core (intermediate layer-encased sphere), and the ball have respective surface hardnesses, expressed in terms of Shore D hardness, which satisfy the relationship
ball surface hardness?surface hardness of intermediate layer-encased sphere?core surface hardness;
the intermediate layer and the cover have respective thicknesses which satisfy the relationship
(thickness of intermediate layer?thickness of cover)?0; and
the core has a hardness profile which, expressed in terms of JIS-C hardness, satisfies the following relationships:
5?[hardness at a position 5 mm from core center (C5)?core center hardness (Cc)]>0, and
[core surface hardness (Cs)?core center hardness (Cc)]/[hardness at a position midway between core surface and core center (Cm)?core center hardness (Cc)]?4; and
the (initial velocity of intermediate layer-encased sphere?initial velocity of core) value is ?0.10 m/s or above.

US Pat. No. 9,990,858

GOLF SWING CLASSIFICATION METHOD, GOLF CLUB SELECTION METHOD, GOLF SWING CLASSIFICATION DEVICE, AND GOLF SWING CLASSIFICATION SYSTEM

BRIDGESTONE CORPORATION, ...

1. A golf club selection method, comprising:acquiring acceleration in at least a single point on the golf club or in at least one point that follows the single point during the golf swing;
mapping a behavior of the golf club based on a maximum value of the acceleration generated in a head of the golf club, prior to the time point when the golf club hits the golf ball during the golf swing, and a bending return time period, the bending return time period being a time period from a time point when an absolute value of the acceleration is at a maximum to a time point when the golf club hits the golf ball;
classifying the golf swing based on a result of the mapping;
selecting an optimal golf club having optimal shaft rigidity for the golf swing in accordance with a result of the classifying; and
imaging the behavior of the head of the golf club during the golf swing by an image device that is attached to the golf club in a manner such that the image device is capable of imaging the head of the golf club,
wherein the acquiring the maximum value of the bending amount generated in the shaft includes calculating the maximum value of the bending amount based on the behavior of the head of the golf club imaged by the image device.

US Pat. No. 9,689,654

SELECTION ASSISTING METHOD AND SELECTION ASSISTING APPARATUS

Bridgestone Sports Co., L...

1. A selection assisting method comprising:
a first selection step of selecting a recommended grip from a plurality of types of grips based on information on a hand size
of a testing golfer;

a measurement step of measuring by using a measurement device a swing characteristic of the testing golfer in a shot by using
a golf club to which the recommended grip selected in the first selection step is attached;

a second selection step of selecting a recommended grip from the plurality of types of grips based on a measurement result
in the measurement step,

a re-measurement step of measuring by using a measurement device in a shot by using a golf club to which the recommended grip
selected in the second selection step is attached; and

a third selection step of selecting a recommended grip from the plurality of types of grips based on a measurement result
in the re-measurement step,

wherein
in the measurement step, a direction of a face at impact is measured as the swing characteristic,
in the re-measurement step, a degree of a change in direction of a face with respect to a moving direction of a head within
a moving range of the head from an impact position to a position at a predetermined distance before the impact position is
measured as the swing characteristic,

in the second selection step, the more open the face, the thinner a grip that is selected as the recommended grip, and the
more closed the face, the thicker a grip that is selected as the recommended grip, and

in the third selection step, the larger the degree of the change, the stronger taper of a grip that is selected as the recommended
grip, and the smaller the degree of the change, the weaker taper of a grip that is selected as the recommended grip.

US Pat. No. 10,137,337

GOLF CLUB HEAD

BRIDGESTONE SPORTS CO., L...

1. A golf club head, comprising:a head body including
a body face;
a sole; and
a crown; and
a face member joined to an opening formed in the body face,
wherein a depression is provided between the opening and the sole in the head body, wherein a minimum thickness of a portion of the sole between the depression and a bottom surface of the head body is greater than a minimum thickness of an entirety of the sole.
US Pat. No. 10,124,215

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material molded under heat from a rubber composition comprising the following components (A) to (C):(A) a base rubber,
(B) an organic peroxide, and
(C) (C-I) water and/or (C-II) a metal monocarboxylate and a metal dicarboxylate;
wherein the difference between the crosslink density at the core surface and the crosslink density at the core center, both of which are crosslink densities measured based on a toluene swelling test, is at least 9×102 mol/m3.
US Pat. No. 10,065,079

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material molded under heat from a rubber composition comprising:(A) a base rubber,
(B) an organic peroxide, and
(C) a metal monocarboxylate; and
letting tan ?1 be the loss tangent at a dynamic strain of 1% and tan ?10 be the loss tangent at a dynamic strain of 10% when the loss tangents of the core center and the core surface are measured at a temperature of ?12° C. and a frequency of 15 Hz, and defining the tan ? slope as (tan ?10?tan ?1)/(10%?1%), the difference between the tan ? slope at the core surface and the tan ? slope at the core center is larger than 0.002, and the tan ? slope at the core surface is larger than the tan ? slope at the core center.
US Pat. No. 9,950,214

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, at least one intermediate layer encasing the core, and at least one outer layer encasing the intermediate layer, wherein the intermediate layer is formed of a resin composition containing a base resin selected from the group consisting of (a-1) to (a-4) below:(a-1) a binary copolymer of an olefin and an ?,?-unsaturated carboxylic acid of 3 to 8 carbon atoms,
(a-2) an ionomer resin that is a metal ion neutralization product of a binary copolymer of an olefin and an ?,? unsaturated carboxylic acid of 3 to 8 carbon atoms,
(a-3) a ternary copolymer of an olefin, an ?,?-unsaturated carboxylic acid of 3 to 8 carbon atoms, and an ?,? unsaturated carboxylic acid ester, and
(a-4) an ionomer resin that is a metal ion neutralization product of a ternary copolymer of an olefin, an ?,? unsaturated carboxylic acid of 3 to 8 carbon atoms, and an ?,?-unsaturated carboxylic acid ester;
the outer layer is formed of, as a primary ingredient, a polyurethane or a polyurea; and the ball has, between the intermediate layer and the outer layer, a bonding layer made of a polycarbonate and/or polyether-type aqueous polyurethane dispersion composition which includes a polycarbodiimide having a carbodiimide equivalent weight (NCN equivalent weight) of at least 300; and wherein the aqueous polyurethane dispersion composition has a molar ratio (i)/(ii) of carbodiimide groups (i) to carboxyl groups (ii) of from 0.073 to 0.490, the outer layer has a thickness from 0.3 to 1.5 mm, and the polycarbodiimide has a pH of at least 8.5.

US Pat. No. 10,039,958

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising:plural dimples formed on a surface thereof; and
plural depressed or protruded portions spaced apart from each other and arranged along and outside an outer periphery of at least one of the plural dimples, the plural depressed or protruded portions each having, as a part of a contour thereof, a shape substantially similar to a part of a contour of the dimple surrounded with the plural depressed or protruded portions, the plural depressed or protruded portions each having a length of more than 1/10 and less than ½ of an outer peripheral length of the dimple surrounded with the plural depressed or protruded portions, wherein the plural depressed or protruded portions each has a width smaller than the length thereof, the length of the depressed or protruded portion being along a length of an inner contour part of the depressed or protruded portion between both ends of the substantially similar shape to a contour part of the dimple, and the width of the depressed or protruded portion being a longest distance between the inner contour part and an outer contour part of the depressed or protruded portion,
wherein the inner contour part and the outer contour part of the depressed or protruded portion have the substantially same shape, and the depressed or protruded portion has a substantially uniform width.
US Pat. No. 9,993,695

GOLF BALL MANUFACTURING METHOD

Bridgestone Sports Co., L...

1. A method of manufacturing golf balls having a core and a cover of at least one layer encasing the core, the method comprising the steps of, when molding the cover:synthesizing a cover stock base resin;
blending and kneading an additive with the base resin to form a cover stock; and
molding a cover using the kneaded cover stock,
wherein a thermal antioxidant is included in both the base resin synthesizing step and the kneading step,
wherein the amount of thermal antioxidant included in the synthesizing step is from 0.05 to 3.0 parts by weight per 100 parts by weight of the base resin, and the amount of thermal antioxidant included in the kneading step is from 0.05 to 3.0 parts by weight per 100 parts by weight of the base resin.

US Pat. No. 9,937,384

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an envelope layer encasing the core, an intermediate layer encasing the envelope layer, and a cover encasing the intermediate layer, wherein the following conditions are satisfied:(I) ball surface hardness>intermediate layer surface hardness>envelope layer surface hardness (II) (Shore D hardness at core surface?Shore D hardness at envelope layer surface)?10,
(III) (cover thickness?intermediate layer thickness)>0.05 mm,
(IV) (intermediate layer thickness?envelope layer thickness)>0.05 mm, and
(V) (Cs?C10)/(C10?Cc)>1.0,Cs in condition (V) denoting the JIS-C hardness at the core surface, C10 denoting the JIS-C hardness at a position 10 mm from a center of the core, and Cc denoting the JIS-C hardness at the core center, and wherein V0?V60<0.7, where V0 is the initial velocity of the core in the golf ball after the envelope layer, intermediate layer and cover, collectively referred to herein as “the core-covering layers,” have been molded, as measured after peeling away the core-covering layers, and V60 is the core initial velocity measured 60 days after measuring V0.

US Pat. No. 10,143,889

POSITIONING SYSTEM AND POSITIONING METHOD

BRIDGESTONE SPORTS CO., L...

1. A positioning system, comprising:a golf ball including
a battery; and
a transmitter configured to operate with electric power supplied from the battery and transmit a radio signal to outside of the golf ball; and
a mobile terminal including
a receiver configured to receive the radio signal from the golf ball; and
a processor configured to measure a position of the mobile terminal, and to measure a position of the golf ball based on strength of the radio signal received by the receiver at two or more points at which the measured position of the mobile terminal differs,
wherein the processor of the mobile terminal is configured to determine a distance from the mobile terminal to the golf ball based on the strength of the radio signal received by the receiver, and to measure the position of the golf ball based on the distance from the mobile terminal to the golf ball determined at each of the two or more points and the position of the mobile terminal measured at each of the two or more points, and
wherein the processor of the mobile terminal is configured to measure the position of the golf ball based on at least one intersection point of a first circle and a second circle, the first circle being centered at the position of the mobile terminal measured at a first point included in the two or more points, and having a radius that is the distance from the mobile terminal to the golf ball determined at the first point, the second circle being centered at the position of the mobile terminal measured at a second point included in the two or more points and different from the first point, and having a radius that is the distance from the mobile terminal to the golf ball determined at the second point.

US Pat. No. 9,889,342

GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, a cover and an intermediate layer therebetween, and having a paint film
layer formed on a surface of the cover, wherein, letting Hc be the JIS-C hardness at a center of the core, H12 be the JIS-C
hardness at a position 12 mm from the core center and Ho be the JIS-C hardness at a surface of the core, the core has a hardness
profile which satisfies conditions (1) to (4) below
0?H12?Hc?15,  (1)

15?Ho?H12?30,  (2)

(Ho?H12)?(H12?Hc)?10, and  (3)

20?Ho?Hc?40; and  (4)
letting (Ho?H12)?(H12?Hc) in condition (3) be A, the spin index of the ball, defined as the dynamic coefficient of friction
for the ball multiplied by A, is at least 3.0, and the hardness distribution index of the core, defined as the deflection
(mm) of the core when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf) multiplied
by A, is at least 40.

US Pat. No. 10,062,027

GOLF BALL INCORPORATING IC CHIP AND METHOD OF MANUFACTURING THE SAME

BRIDGESTONE SPORTS CO., L...

1. A golf ball, comprising:an IC chip;
a protective layer surrounding an outer periphery of the IC chip, the protective layer being made of resin;
a core surrounding an outer periphery of the protective layer; and
a cover surrounding an outer periphery of the core,
wherein the protective layer is formed by a material having a hardness equal to or more than 30 in Shore D, wherein a difference between a hardness of the core and the hardness of the protective layer is equal to or less than 20, and
wherein a diameter of the protective layer is 3 to 30 millimeters, and an outer shape of the protective layer has an approximately spherical shape.

US Pat. No. 10,252,120

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A wood type golf club head comprising a striking face, a crown portion, and a sole portion,wherein the striking face includes an impact area, a toe-side area on a toe side with respect to the impact area, and a heel-side area on a heel side with respect to the impact area,
at least one groove is formed in the toe-side area and/or the heel-side area,
a depth of the groove is 0.025 mm (inclusive) to 0.508 mm (inclusive),
a groove area occupancy in the toe-side area is different from a groove area occupancy in the heel-side area,
a plurality of first grooves as the at least one groove are formed in the toe-side area,
a plurality of second grooves as the at least one groove are formed in the heel-side area, and
the number of the first grooves and the number of the second grooves are different from each other, whereby a groove area occupancy in the toe-side area is different from a groove area occupancy in the heel-side area.

US Pat. No. 10,173,104

GOLF BALL AND METHOD OF MANUFACTURE

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one or more layer encasing the core, wherein the core is formed of a rubber composition comprising a base rubber, a co-crosslinking agent and an organic peroxide, has a center portion and a surface portion that are unfoamed regions, and has an intermediate portion that contains a foamed region.

US Pat. No. 10,173,120

GOLF BALL SELECTION USING MOBILE COMPUTER DEVICE WITH CAMERA

Bridgestone Sports Co., L...

1. A method for selecting an appropriate golf ball for a subject by using a mobile computer device with a camera, the method comprising:inputting information concerning hitting skill of the subject to the mobile computer device;
performing a calibration of a distance and/or direction between two points in a screen of the mobile computer for shooting a moving image by displaying a marking having a first predetermined length on a display screen of the mobile computer device and zooming the camera to until an item of a second predetermined length captured by the camera matches the first predetermined length;
shooting a moving image by the camera of the mobile computer device when the subject hits a golf ball by a golf club;
determining a head speed of the golf club before an impact of the club and the ball from the shot moving image based on the calibration;
computing a golf ball product having a suitable performance for the subject from the input information concerning hitting skill and the determined head speed, based on a database comprising data of information concerning hitting skills of players, data of head speeds before impact of club and ball, and data of performances of golf ball products which are correlated with each other; and
displaying the computed recommended golf ball product on the mobile computer device.
US Pat. No. 10,137,334

GOLF BALL MANUFACTURING METHOD

Bridgestone Sports Co., L...

1. A method of manufacturing a golf ball having a core and a cover of one or more layer over the core, wherein an outermost layer of the cover is molded of a thermoplastic material selected from the group consisting of polyurethane, polyurea and mixtures thereof, the method comprising at least the following steps (1) and (2):(1) treating a surface of the cover with an isocyanate compound; and
(2) washing off and physically removing excess isocyanate compound by using a specific substance, and wherein, when an infrared absorption spectrum measured by FT-IR/ATR spectroscopy at an outside portion of the outermost cover layer of the golf ball manufactured by steps (1) and (2) is plotted as absorbance versus wave number, letting the absorbance peak heights near the wave numbers 1512 cm?1, 2280 cm?1 and 2840 cm?1 be respectively P1, Q1 and R1, the value Q1/R1 is larger than P1,
wherein in step (2), the specific substance is used by blasting the cover surface with the specific substance at a temperature of at least 5° C.

US Pat. No. 10,282,770

CALCULATING A DEGREE OF FIT OF A GOLF PRODUCT BASED ON CAPTURED SWING DATA

Bridgestone Sports Co., L...

1. A system comprising:a swing measuring device comprising one of an image capture device or a sensor disposed on a golf club, the swing measuring device configured to capture swing data when the golf club is swung by a user; and
a portable device including a processor, a display, and a storage unit, the portable device configured to:
install a matching program received from a server, the matching program configured to enable the portable device to communicate with the swing measuring device and to calculate a degree of fitting of a specified golf product;
responsive to the installation of the matching program, create a golf product database in the storage unit, the golf product database configured to:
store a plurality of golf products, each golf product of the plurality of golf products having a plurality of types of items;
for each of the plurality of types of items, store a plurality of assigned scores,
each of the plurality of assigned scores assigned to a particular item type;
receive, from the swing measuring device, captured swing data communicated from the swing measurement device, the captured swing data comprising a plurality of types of items;
register, in the storage device as user information, the plurality of item types of the captured swing data;
accept, through the display, input of specifying information that specifies a golf product;
calculate, by the processor, a degree of fitting of the specified golf product, wherein the calculation comprises:
reading, from the database stored in the storage unit, a plurality of the assigned scores for the specified golf product, the plurality of read assigned scores corresponding to the plurality of types of items of the user information, and,
calculating the degree of fitting from all of the plurality of read assigned scores;
output, on the display, the result of the calculation including an indication of the degree of fitting of the specified golf product.

US Pat. No. 10,279,226

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head including a face portion, comprising:a plurality of score lines formed on the face portion;
a plurality of first grooves formed on the face portion; and
a plurality of second grooves formed on the face portion,
wherein the first grooves have a depth D1 and a width W1 that is in a direction orthogonal to a direction in which the first grooves extend,
the second grooves have a depth D2 and a width W2 that is in a direction orthogonal to a direction in which the second grooves extend,
W1>D1, and
W2
US Pat. No. 10,232,227

GOLF BALL AND METHOD OF MANUFACTURE

Bridgestone Sports Co., L...

1. A method of manufacturing a golf ball having a core and a cover of one or more layer molded over the core, the method comprising the steps of, in order:molding an outermost layer of the cover with a thermoplastic material selected from the group of polyurethane, polyurea and mixtures thereof; and
treating a surface of the cover with a polyisocyanate compound that is free of organic solvent, and
further comprising, after treatment of the cover surface, a step of removing surplus polyisocyanate compound from the cover surface comprising washing the cover surface with water or one or more organic solvents selected from the group consisting of acetone, ethyl acetate, methyl isobutyl ketone, cyclohexanone, toluene and xylene.

US Pat. No. 10,188,914

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head comprising a crown portion and a face portion, wherein the crown portion includes a first protruding portion arranged on a side of the face portion and extending from an upper end of the face portion to a back side, a second protruding portion arranged on the back side to be adjacent to the first protruding portion, and a valley portion formed where the first and second protruding portions are connected to one another, the second protruding portion has a convex-curved outer surface extending from the valley portion to a back side end of the crown portion, a width of the first protruding portion in a face-back direction on a plane passing through a face center of the face portion and extending in a vertical direction is smaller than a width of the second protruding portion in the face-back direction, and a protruding height of the second protruding portion is larger than a protruding height of the first protruding portion, wherein curved outer surfaces of the first and second protruding portions abut to form an inflection at the valley portion.

US Pat. No. 10,183,196

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a plurality of dimples on a surface thereof, wherein a bottom of the dimple has an entirely curved shape protruding toward an outside of the golf ball,wherein a depth d of a highest point of a protruding portion of the bottom of the dimple is a perpendicular distance from a height of a line S connecting both ends of an outer periphery of the dimple, the depth d having a range of 0.020 to 0.080 mm,
wherein a depth D of a deepest point of the bottom of the dimple is a perpendicular distance from the height of the line S, the depth D being deeper than the depth d by at least 0.100 mm,
wherein the golf ball satisfies expression (1):
PS7/S/H×100?6.25 (mm?1)  (1),
wherein
H is a deformation amount (mm), which is an amount of deformation obtained when loads from an initial load of 98 N to a final load of 1275 N are applied to the golf ball;
S is a virtual plane area (mm2), which is an area of a circle of a cross section along a diameter of the golf ball determined supposing that no dimple exists on the surface of the golf ball; and
PS7 is a pressurized area (mm2), which is an area of the golf ball contacting a plane when a load of 6864 N is applied to the golf ball,
wherein the deformation amount H has a range of 1.5 to 5.0 mm,
wherein the curved shape of the bottom of the dimple has an edge angle A1 to the center protruding portion of 2 to 15 degrees, the edge angle A1 being an angle formed between a tangent line passing through the depth d on the bottom curve and a point deeper than the depth d by 10% and the line S,
wherein a volume occupation ratio VR of the dimple is 0.75% to 1.5%, the volume occupation ratio VR being a ratio of the total volume of the dimples respectively formed in a portion downward from the plane surrounded by the edge of the dimple in relation to a virtual spherical volume of the golf ball obtained supposing that no dimple exists on the golf ball surface.

US Pat. No. 10,293,217

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a two-layer core consisting of an inner core layer and an outer core layer, and a cover of one or more layer having a surface with numerous dimples formed thereon, wherein the cover layer with the greatest hardness of all the cover layers has a material hardness on the Shore D hardness scale of at least 56, the Shore D hardness value obtained by subtracting the surface hardness of the overall core from the surface hardness of the hardest cover layer is at least 2, the ball has a deflection when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf) of at least 2.7 mm, and the value obtained by subtracting the initial velocity of the inner core layer from the initial velocity of the sphere consisting of the inner core layer encased by the outer core layer is at least 1 m/s, andwherein the overall core has a hardness profile which, letting Cc be the JIS-C hardness at a center of the core, Cc+5 be the JIS-C hardness at a position 5 mm from the core center, Cs?5 be the JIS-C hardness at a position 5 mm inside the core surface, and Cs be the JIS-C hardness at the core surface, satisfies conditions (1) to (3) below:
(Cc+5)?(Cc)?5  (1)
(Cs)?(Cs?5)?10  (2)
{(Cs)?(Cs?5)}/{Cc+5}?(Cc)}?4  (3),andwhich further satisfies the following condition:
(Cs)?(Cc)?30  (4).

US Pat. No. 10,279,221

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one or more layer, wherein, letting the core have a diameter D (mm), the cover have a thickness T (mm), and the core and the golf ball have respective deflections E (mm) and B (mm) when compressed under a final load of 1,275 N (130 kgf) from an initial load state of 98 N (10 kgf), conditions (1) to (3) below are satisfied:(1) 30?D/T 24,
(2) 4.1?E/T?2.6, and
(3) 1.18?E/B?1.09, and wherein the initial velocity of the ball is from 76.5 to 77.724 m/s, and
wherein the core has a hardness profile with, expressed in terms of JIS-C hardness, a core center hardness of 58±5, a hardness at a position 5 mm from the core center of 62±5, a hardness at a position 10 mm from the core center of 65±5, a hardness at a position 15 mm from the core center of 70±5, and a hardness on a surface of the core of 75±5.

US Pat. No. 10,245,478

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head comprising:a crown portion;
a sole portion;
a face portion; and
a hosel portion,
wherein the crown portion includes a concave portion that starts from a heel-side portion of the face portion which is toward a heel side from a center of the face portion in a toe-heel direction, passes through a boundary portion of the hosel portion and the crown portion on a toe side of the hosel portion, does not pass through a heel side of the hosel portion, and extends toward a back side,
the concave portion includes a range from the face portion toward the back side where a width of the concave portion is larger than a depth of the concave portion,
the concave portion is disposed distant from a center point of the crown on a line extending between the hosel portion and an outermost toe portion of the golf club head,
the range passes on a toe side of the hosel,
the concave portion includes an edge on a side of the face portion, the edge being recessed from an upper edge of the face portion to the sole portion, and
the crown portion does not include, other than the concave portion, a concave portion extending in a face-back direction.
US Pat. No. 10,226,669

GOLF BALL RESIN COMPOSITION AND GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of at least one layer encasing the core, wherein at least one layer of the cover is formed of a resin composition comprised of:(A) a styrene-based thermoplastic elastomer having a Shore D hardness of not more than 48, and
(B) a thermoplastic resin having a Shore D hardness of at least 49 and containing diene monomer units in the molecule
in a compounding ratio AB between components A and B of from 85/15 to 15/85,
wherein the styrene-based thermoplastic elastomer serving as component A has a styrene component content of from 30 to 70 wt %, and
wherein the thermoplastic resin serving as component B contains from 10 to 100 wt % of a 1,2-butadiene component.

US Pat. No. 10,150,007

COLORED GOLF BALL

Bridgestone Sports Co., L...

1. A colored golf ball comprising:a core;
a cover placed around the core, the cover having dimples formed on its surface; and
a coating layer placed on top of the cover, a bright material being dispersed in the coating layer,
wherein an L0 value, which represents an L value in a Lab color system of the colored golf ball before being covered with the coating layer, is 25 or less, and the difference ?L between the L0 value and an L1 value, which represents an L value in the Lab color system of the colored golf ball after being covered with the coating layer, is 5 or more.

US Pat. No. 10,363,460

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core of at least one layer, a cover of at least one layer, and at least one intermediate layer interposed between the core and the cover, wherein the core has a deflection when compressed under a final load of 1,275 N (130 kgf) from an initial load state of 98 N (10 kgf) of at least 4.0 mm, the intermediate layer material has a melt flow rate (MFR) of at least 2.5 g/10 min, the intermediate layer has a thickness of from 1.0 to 1.8 mm, the cover is composed primarily of polyurethane, the cover has a thickness of from 0.5 to 1.0 mm, the cover has a Shore D hardness of at least 55, the sum of the intermediate layer thickness and the cover thickness is not more than 2.2 mm, and the value obtained by subtracting the Shore D hardness of the intermediate layer material from the Shore D hardness of the cover material is from ?10 to 0, andwherein the core is formed of a rubber composition comprising:
(a) a base rubber,
(b) an ?,?-unsaturated carboxylic acid and/or a metal salt thereof,
(c) a crosslinking initiator, and
(d) a metal carboxylate in which the carboxylic acid bonded to metal is of two or more different types and at least one of the carboxylic acids has 8 or more carbon atoms, the component (d) being selected from the group consisting of zinc monostearate monopalmitate, zinc monostearate monomyristate, zinc monostearate monolaurate, zinc monopalmitate monomyristate, zinc monopalmitate monolaurate, zinc monostearate monoacrylate, zinc monostearate monomethacrylate, zinc monostearate monomaleate, zinc monostearate monofumarate, zinc monopalmitate monoacrylate, zinc monopalmitate monomethacrylate, zinc monopalmitate monomaleate, zinc monopalmitate monofumarate, zinc monomyristate monoacrylate, zinc monomyristate monomethacrylate, zinc monomyristate monomaleate, zinc monomyristate monofumarate, zinc monolaurate monoacrylate, zinc monolaurate monomethacrylate, zinc monolaurate monomaleate and zinc monolaurate monofumarate.

US Pat. No. 10,363,461

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, a cover and an intermediate layer therebetween,wherein the core, a sphere composed of the core and the intermediate layer which peripherally encases the core (intermediate layer-encased sphere), and the ball have respective surface hardnesses, expressed in terms of Shore D hardness, which satisfy the relationship
ball surface hardness?surface hardness of intermediate layer-encased sphere?core surface hardness;
the thickness of the cover is not more than 1.2 mm, and
the core has a hardness profile which, expressed in terms of JIS-C hardness, satisfies the following relationships:
20?core surface hardness (Cs)?core center hardness (Cc),
5?[hardness at a position 5 mm from core center (C5)?core center hardness (Cc)]>0, and
[core surface hardness (Cs)?core center hardness (Cc)]/[hardness at a position midway between core surface and core center (Cm)?core center hardness (Cc)]?4.
US Pat. No. 10,322,316

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of at least one layer, wherein the outermost layer of the cover is formed of a resin composition comprising:(A) 100 parts by weight of a thermoplastic resin, and
(B) 1 to 30 parts by weight of a compound having a fluorene skeleton or a derivative thereof,
wherein the thermoplastic resin (A) is at least one resin component selected from the group consisting of:
(a-1) binary copolymers of an olefin and an ?,?-unsaturated carboxylic acid of 3 to 8 carbon atoms,
(a-2) ionomer resins that are metal ion neutralization products of binary copolymers of an olefin and an ?,?-unsaturated carboxylic acid of 3 to 8 carbon atoms,
(a-3) ternary copolymers of an olefin, an ?,?-unsaturated carboxylic acid of 3 to 8 carbon atoms and an ?,?-unsaturated carboxylic acid ester, and
(a-4) ionomer resins that are metal ion neutralization products of ternary copolymers of an olefin, an ?,?-unsaturated carboxylic acid of 3 to 8 carbon atoms and an ?,?-unsaturated carboxylic acid ester.

US Pat. No. 10,252,481

METHOD FOR FORMING GOLF BALL AND MOLD THEREFOR

BRIDGESTONE SPORTS CO., L...

1. A mold for a golf ball comprising:at least two mold bodies, in which a cavity for molding the golf ball is formed by joining the bodies together; and
a movable holding pin disposed in at least one of the mold bodies, a tip of the holding pin comprising an indentation portion which is located continuously along a whole circumference of the holding pin, the indentation portion being arranged in an area of at least 0.2% in relation to an entire area of an imaginary top surface of the tip of the holding pin on which the indentation portion is assumed to be absent and having a depth of at least 0.2 mm.
US Pat. No. 10,279,218

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material molded under heat from a rubber composition comprising the following components A to C:(A) a base rubber,
(B) an organic peroxide, and.
(C) water and/or a metal monocarboxylate, and has a hardness profile which, letting Cc be a JIS-C hardness at a center of the core, C10 be a JIS-C hardness at a position 10 mm from the core center and Cs be a JIS-C hardness at a surface of the core, satisfies the following conditions (1) to (3):
(1) 0?C10?Cc?10
(2) C10?Cc (3) 20?Cs?C10,
wherein the core, following vulcanization, has a higher moisture content at the core center than at the core surface, and the core has a deflection E when compressed under a final load of 1,275 N (130 kgf) from an initial load state of 98 N (10 kgf) and the ball has a deflection B when compressed under a final load of 1,275 N (130 kgf) from an initial load state of 98 N (10 kgf), which value is expressed as E/B, is at least 1.12.

US Pat. No. 10,262,354

CALCULATING A DEGREE OF FIT OF A GOLF PRODUCT BASED ON CAPTURED SWING DATA

Bridgestone Sports Co., L...

1. A system comprising:a swing measuring device comprising one of an image capture device or a sensor disposed on a golf club, the swing measuring device configured to capture swing data when the golf club is swung by a user; and
a portable device including a processor, a display, and a storage unit, the portable device configured to:
install a matching program received from a server, the matching program configured to enable the portable device to communicate with the swing measuring device and to calculate a degree of fitting of a specified golf product;
responsive to the installation of the matching program, create a golf product database in the storage unit, the golf product database configured to:
store a plurality of golf products, each golf product of the plurality of golf products having a plurality of types of items;
for each of the plurality of types of items, store a plurality of assigned scores,
each of the plurality of assigned scores assigned to a particular item type;
receive, from the swing measuring device, captured swing data communicated from the swing measurement device, the captured swing data comprising a plurality of types of items;
register, in the storage device as user information, the plurality of item types of the captured swing data;
accept, through the display, input of specifying information that specifies a golf product;
calculate, by the processor, a degree of fitting of the specified golf product, wherein the calculation comprises:
reading, from the database stored in the storage unit, a plurality of the assigned scores for the specified golf product, the plurality of read assigned scores corresponding to the plurality of types of items of the user information, and,
calculating the degree of fitting from all of the plurality of read assigned scores;
output, on the display, the result of the calculation including an indication of the degree of fitting of the specified golf product.

US Pat. No. 10,245,483

GOLF CLUB HEAD

BRIDGESTONE SPORTS CO., L...

1. A golf club head comprising:a face including a ball-striking surface;
a sole defining a bottom of the golf club head;
an attachment member;
an attachment part to which the attachment member is attachable; and
a rib formed on an internal surface of the golf club head,
wherein the rib is spaced apart from the attachment part, and
wherein the rib extends so as to wholly surround the attachment part.

US Pat. No. 10,486,044

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head that includes a head upper portion, a head bottom portion and a face portion between the head upper portion and the head bottom portion, comprising:a slit that is open in the head upper portion on a back side of the face portion, extends in a toe-heel direction, and is formed toward the head bottom portion, a bottom end, a toe side end and a heel side end of the slit being closed;
a bottom wall surface;
an intermediate member configured to be provided in the slit, and abut against a first wall surface on the face portion side that defines the slit; and
a fixing member configured to fix the intermediate member from a side of a second wall surface on the back side that is separated from the first wall surface and defines the slit.

US Pat. No. 10,335,641

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one or more layer encasing the core, wherein, letting HU-A and HU-B be respectively the Martens hardnesses measured at positions 100 ?m and 200 ?m inward from a surface of an outermost layer of the cover and toward a center of the core, and letting HU-C be the Martens hardness measured at a position 100 ?m from an inner side of the outermost cover layer and toward the surface, HU-A or HU-B is harder than HU-C, wherein the value of HU-A is from 14.8 to 53.4 N/mm2 and the value of HU-B is from 13.6 to 45.2 N/mm2.

US Pat. No. 10,272,305

GOLF CLUB SET

Bridgestone Sports Co., L...

1. A golf club set comprising a plurality of golf clubs having different loft angles,wherein the plurality of golf clubs have the same lie angle,
each loft angle difference between two golf clubs that are adjacent in a loft angle order is the same,
each club length difference between two golf clubs that are adjacent in the loft angle order is 0.125 inches (3.175 mm) (inclusive) to 0.375 inches (9.525 mm) (inclusive),
a loft angle of a golf club having a minimum frequency is smaller than a loft angle of a golf club having a maximum frequency,
the minimum frequency is less than 320 cpm, and
the maximum frequency exceeds 360 cpm.
US Pat. No. 10,526,507

GOLF BALL PAINT COMPOSITION

Bridgestone Sports Co., L...

1. A golf ball paint composition comprising a urethane paint containing a base resin and polyisocyanate as a curing agent, wherein the base resin includes (A) a polyester polyol having a weight-average molecular weight of from 20,000 to 30,000, (B) a polyester polyol having a weight-average molecular weight of from 800 to 1,500 and an organic solvent and the cured composition has an elastic work recovery of at least 70%.

US Pat. No. 10,463,919

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core, a cover that is provided on an outer side of the core and has dimples, and an outermost layer that is formed on an outer side of the cover and made of a material having a contact angle of 90° or more, wherein the golf ball has a dynamic friction coefficient of 0.52 or more,wherein a material for the outermost layer comprises a urethane coating that contains a water repellent additive, an amount of the water repellent additive being in a range from 0.1-10 mass % with respect to a total amount of a main agent including a solvent of the urethane coating,
wherein the main agent of the urethane coating comprises two polyester polyols (A) and (B) having different weight average molecular weights (Mw),
wherein the polyester polyol (A) has a weight average molecular weight (Mw) of 20,000-30,000 and the polyester polyol (B) has a weight average molecular weight (Mw) of 800-1,500, and
wherein an amount of the polyester polyol (A) is 20-30 mass % with respect to a total amount of the main agent including a solvent of the urethane coating and an amount of the polyester polyol (B) is 2-18 mass % with respect to a total amount of the main agent including a solvent of the urethane coating.

US Pat. No. 10,441,853

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core and four successive layers encasing the core—an inner envelope layer, an outer envelope layer, an intermediate layer and a cover, wherein the inner envelope layer, the outer envelope layer and the intermediate layer are each formed of different highly neutralized resin materials; the cover has a larger thickness than the respective thicknesses of the inner envelope layer, the outer envelope layer and the intermediate layer; and the value (A)?(B) obtained by subtracting the material hardness (B) of the softest layer among the inner envelope layer, the outer envelope layer and the intermediate layer from the material hardness (A) of the cover is a Shore D hardness of 13 or more, wherein the value obtained by subtracting the core surface hardness from the surface hardness of the inner envelope layer-encased sphere, expressed in terms of the Shore D hardness, is from 0 to 10, and the material hardness of the cover on the Shore D hardness scale is at least 58, and the material hardnesses of the respective layers and the center hardness of the core satisfy the following condition:cover material hardness>intermediate layer material hardness>outer envelope layer material hardness>inner envelope layer material hardness>core center hardness, and
wherein the golf ball has a five-piece construction consisting of the single core, the single inner envelope layer, the single outer envelope layer, the single intermediate layer and the single cover.
US Pat. No. 10,414,946

GOLF BALL PAINT COMPOSITION

Bridgestone Sports Co., L...

1. A golf ball paint composition comprising a urethane paint which consists of a polyol and a polyisocyanate, the polyol comprising an acrylic polyol and the composition having an elastic work recovery of at least 70%, wherein the acrylic polyol has a weight-average molecular weight (Mw) of from 30,000 to 120,000 and is composed of polyester-containing acrylic monomer, methyl methacrylate and 2-hydroxyethyl methacrylate, andwherein the acrylic polyol has a hydroxyl value of at least 120 mgKOH/g.
US Pat. No. 10,369,419

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material molded under heat from a rubber composition comprising the following components A to C:(A) a base rubber,
(B) an organic peroxide, and
(C) water,
wherein the golf ball has a hardness at an interior thereof such that a value obtained by subtracting a JIS-C hardness H5.0 at a position 5.0 mm outward from a center of the core and toward a periphery of the core from a JIS-C hardness H15.0 at a position 15.0 mm outward from the core center and toward the core periphery is a positive value and not more than 18.3,
wherein the amount of the water included per 100 parts by weight of the base rubber serving as component A is from 0.1 to 5 parts by weight.
US Pat. No. 10,300,342

RUBBER COMPOSITION FOR GOLF BALL, AND GOLF BALL

Bridgestone Sports Co., L...

1. A rubber composition for golf balls, comprising:(A) a base rubber,
(B) two different metal salts of ?,?-unsaturated carboxylic acids having 3 to 8 carbon atoms,
(C) a metal salt in which at least one bonding site is a fatty acid of 9 or more carbon atoms, and
(D) a crosslinking initiator,wherein, component (B) includes (B-1) an unsaturated metal carboxylate in a high compounding weight and (B-2) an unsaturated metal carboxylate in a low compounding weight, the ratio (B-2)/(B-1) is from 4 to 20 wt % and the ratio (B-2)/(C) is from 20 to 115 wt %, and component (C) is selected from the group consisting of zinc monostearate monopalmitate, zinc monostearate monomyristate, zinc monostearate monolaurate, zinc monopalmitate monomyristate, zinc monopalmitate monolaurate, zinc monostearate monoacrylate, zinc monostearate monomethacrylate, zinc monostearate monomaleate, zinc monostearate monofumarate, zinc monopalmitate monoacrylate, zinc monopalmitate monomethacrylate, zinc monopalmitate monomaleate, zinc monopalmitate monofumarate, zinc monomyristate monoacrylate, zinc monomyristate monomethacrylate, zinc monomyristate monomaleate, zinc monomyristate monofumarate, zinc monolaurate monoacrylate, zinc monolaurate monomethacrylate, zinc monolaurate monomaleate and zinc monolaurate monofumarate.

US Pat. No. 10,300,344

GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, a cover and an intermediate layer therebetween and having a paint film layer formed on a surface of the cover, wherein, letting Hc be the JIS-C hardness at a center of the core, H12 be the JIS-C hardness at a position 12 mm from the core center and Ho be the JIS-C hardness at a surface of the core, the core has a hardness profile which satisfies condition (3) below(Ho?H12)?(H12?Hc)?10  (3)
(with the proviso that 65?Ho?99 and 40?Hc?78); letting (Ho?H12)?(H12?Hc) in condition (3) be A, the spin index of the ball, defined as the dynamic coefficient of friction for the ball multiplied by A, is from 4.9 to 7.8; and the hardness profile index, defined as the deflection (mm) of the core when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf) multiplied by A, is at least 40, and wherein the dynamic coefficient of friction for the ball is at least 0.324.

US Pat. No. 10,518,137

GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball comprising a core, a cover that is provided on an outer side of the core and has dimples on a surface thereof, and an outermost layer that is formed on a whole outer side of the cover and made of a material having a contact angle of 90° or more and a dynamic contact angle of 85° or less, wherein the material comprises a water repellent additive,wherein a material constituting the outermost layer comprises a urethane coating that contains the water repellent additive,
wherein the urethane coating is formed from polyol as a main agent, and polyisocyanate as a curing agent, the polyol comprising two types of polyesterpolyols having different weight average molecular weights (Mw), a first Mw being 20000 to 30000, a second Mw being 800 to 1500.

US Pat. No. 10,512,823

MULTI-PIECE SOLID GOLF BALL

Bridgestone Sports Co., L...

1. A multi-piece solid golf ball comprising a core, an intermediate layer encasing the core and a cover which encases the intermediate layer and has numerous dimples formed on an outside surface thereof (ball surface), wherein the intermediate layer is formed of a resin material, the cover is formed of a urethane resin material; the intermediate layer has a material hardness on the Shore D hardness scale of from 61 to 70, the cover has a material hardness on the Shore D hardness scale of 55 or less, the (intermediate layer thickness)/(core diameter) value is from 0.025 to 0.041, the (cover thickness)/(core diameter) value is from 0.014 to 0.024, the core has a deflection when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf) of at least 4.2 mm, and the sphere consisting of the core encased by the intermediate layer (intermediate layer-encased sphere) has an initial velocity A and the core has an initial velocity B which together satisfy the condition A?B?0 m/s, and wherein the core has a hardness profile from a center to a surface thereof which satisfies the following condition,(JIS-C hardness at core surface?JIS-C hardness 5 mm inside of core surface)?(JIS-C hardness 5 mm outside of core center?JIS-C hardness at core center)?0.

US Pat. No. 10,350,467

GOLF CLUB HEAD

Bridgestone Sports Co., L...

1. A golf club head comprising:a face portion;
a plurality of score lines formed on the face portion and extending in a toe-heel direction;
a plurality of protruding portions formed on the face portion and extending parallel to the plurality of score lines; and
a plurality of recessed portions formed on the face portion and extending parallel to the plurality of score lines,
wherein each protruding portion of the plurality of protruding portions and each recessed portion of the plurality of recessed portions are formed alternately in a direction orthogonal to the toe-heel direction,
the plurality of protruding portions include a plurality of first protruding portions and a plurality of second protruding portions,
each of the plurality of first protruding portions has an apex portion that is positioned in a first imaginary plane parallel to a reference plane that contains an edge of each of the plurality of score lines, and
each of the plurality of second protruding portions has an apex portion that is positioned in a second imaginary plane parallel to the reference plane and different from the first imaginary plane.
US Pat. No. 10,316,174

GOLF BALL MATERIAL AND GOLF BALL

Bridgestone Sports Co., L...

1. A golf ball material comprising(A) one, two or more resin ingredients selected from the group consisting of olefin-unsaturated carboxylic acid random copolymers, olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymers, metal ion neutralization products of olefin-unsaturated carboxylic acid random copolymers and metal ion neutralization products of olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymers;
(D) an amino compound having at least 2 amino groups per molecule;
(B) polyamide elastomers; and
(C) an agent for compatibilizing components (A) and (B),
wherein the compatibilizing agent (C) comprises:
(C-i) two kinds of base polymer selected from the group consisting of olefin-unsaturated carboxylic acid random copolymers, olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymers, metal ion neutralization products of olefin-unsaturated carboxylic acid random copolymers, metal ion neutralization products of olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymers, polyethylene, polyesters and polyamide elastomers,
(C-ii) a hydrogenated diene polymer having at least one type of functional moiety selected from the group consisting of carboxyl, acid anhydride, (meth)acryloyl, amino, alkoxysilyl, hydroxyl, isocyanato and oxazoline moieties, and
(C-iii) an olefinic polymer having at least one type of functional moiety selected from the group consisting of carboxyl, acid anhydride, epoxy, (meth)acryloyl, amino, alkoxysilyl, hydroxyl, isocyanato and oxazoline moieties,
wherein components (A) and (B) are included in a weight ratio therebetween of from 95:5 to 5:95.

US Pat. No. 10,315,077

GOLF BALL WITH BUILT-IN IC CHIP

Bridgestone Sports Co., L...

1. A golf ball with a built-in integrated circuit (IC) chip, the golf ball comprising:an IC chip;
a protection layer surrounding an outer periphery of the IC chip; a curing temperature of the protection layer being 60° C. or less and the protection layer being formed with a material having a hardness of Shore D 60 or more
a relaxation layer surrounding an outer periphery of the protection layer;
a core surrounding an outer periphery of the relaxation layer, the core being formed with a rubber composition; and
a cover surrounding an outer periphery of the core,
wherein the relaxation layer is formed with a thermoplastic elastomer-based material having a hardness with a difference from a hardness of a surface of the core on a side contacting the relaxation layer of Shore D 20 or less,
wherein an outer shape of the protection layer is a substantially spherical shape concentric with the golf ball, and
wherein the protection layer has a diameter of at least 3 mm.