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.
Patent No.:
Date of Patent:
Nov. 18, 1980
Filed:
Jan. 05, 1978
Applicant:
Inventors:
Hiroshi Hishida, Sayama, JP;
Toshihiko Nakayama, Tokorozawa, JP;
Isao Koyama, Kodaira, JP;
Hisao Wakabayashi, Higashikurume, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310348 ; 310353 ;
Abstract
A supporting structure for a thickness-shear type crystal oscillator for watches which has an excellent resistance to shocks, which is very compact in construction and which can support not only an annular crystal piece but also support a rectangular crystal piece is disclosed. The supporting structure comprises a supporting frame which is provided at its opposed inner periphery with tongues adapted to be engaged with corresponding notches provided on opposed end portions of a crystal piece, respectively.