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:
Jun. 20, 1978
Filed:
Nov. 17, 1975
Applicant:
Inventors:
Kazumasa Umeya, Tokyo, JA;
Kazunari Yonezuka, Tokyo, JA;
Assignee:
TDK Electronics Co., Ltd., Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252520 ; 106 732 ; 106 7331 ; 106 735 ; 252 / ; 252518 ; 252521 ;
Abstract
A semiconductor ceramic composition having positive temperature characteristics which comprises titanates of barium, lead and calcium which have 1 - 40 mole % of lead titanate and 1 - 22 mole % of calcium titanate and 38 - 98 mole % of barium titanate and 0.03 - 0.6 mole % of a semiconductor-forming component based on said titanates.
Umeya, Kazumasa. (1978). Semiconductor ceramic composition (U.S. Patent No. 4096098). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4096098
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile