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:
Oct. 07, 1980
Filed:
Aug. 20, 1979
Applicant:
Inventors:
Masamitsu Nishida, Osaka, JP;
Syunichiro Kawashima, Nishinomiya, JP;
Ichiro Ueda, Osaka, JP;
Hiromu Ouchi, Toyonaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
264332 ; 252 629 ;
Abstract
A piezoelectric ceramic elements obtained by hot-press sintering a composition expressed by the formula: