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, 1981
Filed:
Oct. 30, 1979
Masatada Yodogawa, Tokyo, JP;
Matsuo Morisawa, Tokyo, JP;
Takashi Yamamoto, Tokyo, JP;
Katsunobu Okutani, Tokyo, JP;
TDK Electronics Company, Limited, Tokyo, JP;
Abstract
A sintered body of a ceramic composition for voltage non-linear resistor is produced by sintering an oxide semiconductor composition comprising a main component of zinc oxide and a minor component at 1100.degree. to 1400.degree. C.; then maintaining the sintered body in an inert gas such as N.sub.2, Ar and so on having an oxygen content of 0.1 to 21 vol. % at the temperature lower than the sintering temperature for a specific time; changing the atmosphere into an inert gas having an oxygen content of lower than 0.02 vol. % at 800.degree. to 1200.degree. C.; and cooling it.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile