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. 07, 2015
Filed:
Aug. 25, 2011
Kenji Nozoe, Fukui, JP;
Hideaki Tokunaga, Osaka, JP;
Takeshi Iseki, Fukui, JP;
Takashi Morino, Fukui, JP;
Kouichi Yoshioka, Fukui, JP;
Kenji Nozoe, Fukui, JP;
Hideaki Tokunaga, Osaka, JP;
Takeshi Iseki, Fukui, JP;
Takashi Morino, Fukui, JP;
Kouichi Yoshioka, Fukui, JP;
Abstract
An overvoltage protector includes a first discharging electrode, a second discharging electrode, and an overvoltage protection part provided between the first and second discharging electrodes. The overvoltage protecting part has an insulating property under a normal operation condition, and has a conductive property if an overvoltage is applied between the first and second discharging electrodes. The overvoltage protecting part is made of a mixture of resin having an insulation property, an inorganic compound having an insulating property, and metallic boride compound powder. The metallic boride compound powder has a high melting point therefore it is hardly melted. Under high temperatures causing the powder to melt, the powder is oxidized and loses conductivity, thus providing a high reliability.