US Pat. No. 9,853,413

AIRPORT RUNWAY APPROACH LIGHTING APPARATUS

Tae Jin Kim, San Jose, C...

1. An airport runway approach light comprising:
a visible light source including a light emitting diode (LED configured to emit a visible light beam;
a first lens attached to the visible light source and configured to change the visible light beam emitted from the visible
light source to a desired visible light beam pattern; and

an infrared light source including a plurality of semiconductor laser diodes configured to emit an infrared beam,
wherein the plurality of semiconductor laser diodes are distributed on a surface of a laser diode chip in an array.

US Pat. No. 10,397,986

HEAT GENERATION APPARATUS USING PERMANENT MAGNETS

Tae Jin Kim, Seoul (KR) ...

1. A heat generation apparatus using permanent magnets, the heat generation apparatus comprising:a plurality of rotors fixedly mounted on a rotating shaft, and configured such that they are rotatable along with the rotating shaft with permanent magnets disposed thereon at predetermined intervals;
a heat generation part configured such that the rotors are contained therein to thus form a predetermined gap between the heat generation part and the rotors, and adapted to generate heat while the permanent magnets are being rotated;
a motor configured to serve as a source for rotation of the rotating shaft; and
a power transmission means configured to transfer rotation force of the motor to the rotating shaft;
wherein insertion slits are formed in each of the rotors by a plurality of partitions formed through an outer circumferential surface of the rotor, and the permanent magnets are inserted into the insertion slits and arranged such that N pole of each permanent magnet is disposed at an identical end portion of each of the insertion slits in a radial direction and S pole of each permanent magnet is disposed at an opposite end portion of each of the insertion slits in the radial direction, thereby generating repulsive force between two neighboring permanent magnets; and
wherein the rotors are 2 to 16 in number and are mounted on the rotating shaft at predetermined intervals, and walls made of a material that does not pass a line of magnetic force therethrough are each disposed between two adjacent ones of the rotors so that the rotors are disposed in an independent state.

US Pat. No. 10,263,395

AIRPORT RUNWAY APPROACH LIGHTING APPARATUS

Tae Jin Kim, San Jose, C...

1. An airport runway approach light comprising:a visible light source including a light emitting diode (LED) configured to emit a visible light beam;
a first lens attached to the visible light source and configured to change the visible light beam emitted from the visible light source to a desired visible light beam pattern; and
an infrared light source configured to emit an infrared beam,
wherein the infrared light source includes: 1) a plurality of semiconductor laser diodes that are distributed on a surface of a laser diode chip in an array, or 2) an edge-emitting laser diode.