US Patent No. 10,476,472

QUARTZ CRYSTAL DEVICE


Patent No. 10,476,472
Issue Date November 12, 2019
Title Quartz Crystal Device
Inventorship Yuki Oi, Saitama (JP)
Assignee NIHON DEMPA KOGYO CO., LTD., Tokyo (JP)

Claim of US Patent No. 10,476,472

1. A quartz crystal device, comprising:a quartz-crystal vibrating piece;
a container that houses the quartz-crystal vibrating piece; and
a pedestal, located between the quartz-crystal vibrating piece and the container for connecting and fixing the quartz-crystal vibrating piece to the container, the pedestal being configured with a crystal, wherein
the pedestal is fixed to the container at three places of a first fixation point, a second fixation point, and a third fixation point in a plan view,
the first fixation point, the second fixation point, and the third fixation point are configured so as to become positions where an inner center, an outer center, or a gravity center of a triangle formed by connection of the first, second and third fixation points and a gravity center of the pedestal match.