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. 11, 1997
Filed:
Feb. 07, 1996
Applicant:
Inventor:
Kouji Hayashi, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501137 ; 501139 ;
Abstract
A semiconducting ceramic composition having a positive temperature coefficient and a process for production thereof. The semiconducting ceramic composition comprises a barium titanate semiconducting ceramic composition containing silicon oxide and manganese, the semiconducting ceramic composition further comprising sodium in an amount of from 0.0005 to 0.02 wt % based on the amount of the barium titanate semiconducting ceramic composition.
Hayashi, Kouji. (1997). Semiconducting ceramic composition having positive temperature (U.S. Patent No. 5686367). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5686367
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile