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:
Apr. 03, 1979
Filed:
Dec. 01, 1976
Nobuaki Shohata, Tokyo, JP;
Tomeji Ohno, Tokyo, JP;
Shigeru Ikeda, Tokyo, JP;
Takaki Fukushima, Tokyo, JP;
Ryuji Igarashi, Tokyo, JP;
Jyun-Ichiro Yoshida, Tokyo, JP;
Nippon Electric Co., Ltd., Tokyo, JP;
Ohizumi Mfg. Co., Ltd., Tokyo, JP;
Abstract
Nonohmic ZnO ceramics including the following additives have the voltage nonlinear exponent .alpha. of 30 or more, the dielectric constant .epsilon. of about 1000 or less, the loss factor (tan .delta.) of less than 10%, and small variations caused in the breakdown voltage V.sub.i by load and large current pulses. The additives listed by molecular formulae are given in % by mol. The glass components are given for Nos. 1 through 4 in % by weight, symbols of elements being representative of borosilicate lead and/or zinc glass.