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:
Jan. 15, 2002
Filed:
Mar. 24, 2000
Makikazu Takehana, Akita, JP;
TDK Corporation, Tokyo, JP;
Abstract
A laminated chip type varistor comprising a varistor function layer, internal electrodes, and terminal electrodes. The varistor function layer has a composition containing zinc oxide as a main component, and cobalt oxide and rare earth elements as additives. The internal electrodes contain at least one selected from the group consisting of aluminum in the form of Al O with an amount of from 0.0001 to 5.0% by weight, iron in the form of Fe O with an amount of from 0.0001 to 5.0% by weight, and zirconia in the form of ZrO with an amount of from 0.001 to 6.0% by weight as additives with respect to an electrically conductive metal component of a composition for forming layers of the internal electrodes.