The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 30, 2025

Filed:

Dec. 28, 2020
Applicant:

Maxis-01 Corporation, Tokyo, JP;

Inventors:

Noboru Takahashi, Tokyo, JP;

Ryo Kobayashi, Tokyo, JP;

Yukihiro Okamoto, Hyogo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/13 (2006.01); H03B 5/30 (2006.01); H03H 9/17 (2006.01);
U.S. Cl.
CPC ...
H03H 9/13 (2013.01); H03B 5/30 (2013.01); H03H 9/176 (2013.01);
Abstract

The present invention is able to reduce a CI value without requiring precise processing of a crystal blank. An electrode structure of a crystal unit () according to the present invention includes driven electrodes () arranged at least at a center on main surfaces () of a crystal blank (). The driven electrodes () have a structure in which vibration energy of thickness shear vibration of the crystal blank () is concentrated in a central region of the crystal blank ().


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