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. 11, 1997
Filed:
Oct. 25, 1995
Seiich Yamada, Juuou-machi, JP;
Shigeru Tanaka, Hitachi, JP;
Moritaka Syouji, Hitachi, JP;
Shigehisa Motowaki, Hitachi, JP;
Ken Takahashi, Tokai-mura, JP;
Shingo Shirakawa, Hitachi, JP;
Kunihiro Maeda, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A non-linear resistor having a high impulse withstanding ability is obtained by directly applying a crystallized glass to the side surface of a sintered body of a ZnO element, and then bake-attaching the crystallized glass to the side surface of the ZnO element by heat treatment. Since the impulse withstanding ability is improved by applying the crystallized glass as the side surface high-resistivity layer of the voltage non-linear resistor, the performance and reliability of an arrester including the resistor is improved.