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:
Aug. 22, 2017
Filed:
Dec. 05, 2014
Applicant:
Hitachi Metals, Ltd., Tokyo, JP;
Inventors:
Assignee:
HITACHI METALS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/03 (2006.01); H01C 7/112 (2006.01); H01C 17/065 (2006.01); H01C 17/30 (2006.01); B32B 18/00 (2006.01); C04B 35/453 (2006.01); H05K 1/02 (2006.01); C04B 35/64 (2006.01); H01C 1/14 (2006.01);
U.S. Cl.
CPC ...
H01C 7/112 (2013.01); B32B 18/00 (2013.01); C04B 35/453 (2013.01); C04B 35/64 (2013.01); H01C 1/14 (2013.01); H01C 17/06546 (2013.01); H01C 17/30 (2013.01); H05K 1/0254 (2013.01); B32B 2307/206 (2013.01); B32B 2457/00 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3241 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3263 (2013.01); C04B 2235/3275 (2013.01); C04B 2235/3277 (2013.01); C04B 2235/3284 (2013.01); C04B 2235/3298 (2013.01); C04B 2235/3409 (2013.01); C04B 2235/656 (2013.01); C04B 2235/72 (2013.01); C04B 2237/34 (2013.01); C04B 2237/62 (2013.01); H05K 2201/0738 (2013.01);
Abstract
To provide a zinc oxide-based varistor that exhibits adequate characteristics without using antimony. Disclosed is a sintered body for a varistor, including zinc oxide as a main component; 0.6 to 3.0 mol % of bismuth oxide in terms of bismuth (Bi); 0.2 to 1.4 mol % of cobalt oxide in terms of cobalt (Co); 0.1 to 1.5 mol % of chrome oxide in terms of chrome (Cr); and 0.1 to 1.5 mol % of manganese oxide in terms of manganese (Mn), wherein the contents of antimony (Sb), a rare earth element and tin (Sn) are not more than a level of impurities.