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:
Feb. 03, 1987
Filed:
Mar. 24, 1986
Applicant:
Inventor:
Yasuhiro Tanaka, Ishikawa, JP;
Assignee:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310368 ; 310312 ;
Abstract
A piezoelectric resonator including a piezoelectric substrate of a quadrilateral or rectangular configuration, and electrode layers provided over opposite main faces of the piezoelectric substrate for vibration of the piezoelectric substrate on the whole, and characterized in that the piezoelectric substrate is formed, in its four side edges, with notched portions having dimensions and shapes different from each other.