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:
Mar. 03, 1992
Filed:
Sep. 11, 1990
Applicant:
Inventors:
Akira Kawabata, Uji, JP;
Tadashi Shiozaki, Kyoto, JP;
Masatoshi Adachi, Ootsu, JP;
Seiji Yamanaka, Yokose, JP;
Tamotsu Ueyama, Oyama, JP;
Assignee:
Mitsubishi Mining and Cement Company Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501134 ; 501 32 ; 252 629 ;
Abstract
A pyroelectric ceramic composition structure composed of ceramic agglomerations assembled from a plurality of pyroelectric ceramic compositions to form a structure with a high pyroelectric constant, and a second transition temperature below its curie temperature. The composition is made up of a compound of the formula: