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. 19, 2024
Filed:
Jun. 28, 2021
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Mikinori Amisawa, Hokkaido, JP;
Masuto Omiya, Hokkaido, JP;
Kouji Hirate, Yamaguchi, JP;
Yukihito Yamashita, Hokkaido, JP;
Touichi Makita, Hokkaido, JP;
Abstract
An object is to provide a laminated varistor excellent in clamping voltage ratio. Laminated varistor includes at least a pair of internal electrodes provided in varistor layer containing ZnO as a main component. Internal electrode contains Ag as a main component and is made of a metal containing at least one type selected from Pt and Au. The total weight of Pt and Au with respect to the weight of the metal constituting internal electrode is set between 2% and 30% (inclusive). With such a configuration, diffusion of Ag into varistor layer can be prevented, and a laminated varistor excellent in clamping voltage ratio can be obtained.