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. 06, 2000
Filed:
May. 05, 1999
Chihiro Takahashi, Chiba-ken, JP;
Shigeki Sato, Narita, JP;
TDK Corporation, Tokyo, JP;
Abstract
A barium titanate-based semiconducting ceramic, which contains BaTiO.sub.3 as a main component thereof, and Ba.sub.2 TiSi.sub.2 O.sub.8 and Ba.sub.n Ti.sub.m O.sub.n+2m (1.ltoreq.n.ltoreq.4, 2.ltoreq.m.ltoreq.13, n.ltoreq.m), respectively, as trace-phase compositions, wherein the ratio of the contents of about Ba.sub.2 TiSi.sub.2 O.sub.8 and Ba.sub.n Ti.sub.m O.sub.n+2m (Ba.sub.2 TiSi.sub.2 O.sub.8 /Ba.sub.n Ti.sub.m O.sub.n+2m) as the trace-phase compositions is in the range of about 0.5 to 80.0. This semiconductive ceramic exhibits excellent voltage resistance and ensures high reliability as a product element. Moreover, it has a suitable room temperature resistivity .rho.25 for functioning as a product element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile