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. 04, 1980
Filed:
Feb. 14, 1979
Applicant:
Inventor:
Shigeru Kizaki, Hanno, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H03H / ;
U.S. Cl.
CPC ...
430312 ; 430318 ; 430316 ; 1566611 ; 427100 ; 310370 ;
Abstract
In a flexural mode quartz crystal vibrator formed from a thin quartz crystal plate, a subminiature quartz crystal vibrator characterized in that said quartz crystal plate is obtained by rotating an X-cut plate around the X-axis by an angle of 0 to 10.degree. and further rotating the same by an angle of 70 to 90.degree. around the Y'-axis, the vibrator having a thickness of less than 0.2 mm as fomed by a photolithographic technique, exciting electrodes being deposited on the sides thereof.