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:
Jul. 19, 2022
Filed:
Dec. 19, 2018
Nippon Chemi-con Corporation, Tokyo, JP;
Ikufumi Honda, Tokyo, JP;
Hiroyuki Wakabayashi, Tokyo, JP;
Masayuki Mori, Tokyo, JP;
Masaru Saito, Tokyo, JP;
Takashi Kuroki, Tokyo, JP;
Kazuo Matsushita, Tokyo, JP;
Atsushi Koga, Tokyo, JP;
Ryoichi Yasuda, Tokyo, JP;
Koji Hoshino, Tokyo, JP;
Masahiro Matsushima, Tokyo, JP;
Keita Yajima, Tokyo, JP;
NIPPON CHEMI-CON CORPORATION, Tokyo, JP;
Abstract
A seal plate () seals an opening part of a capacitor case (an exterior case) and includes a main body part () including a through-hole () for discharging a gas (G) in the capacitor case, a pressure valve () arranged to cover the through-hole and including a valve body part () allowing passage of the gas, a storage part () formed in the through-hole to receive the valve body part expanded due to a pressure in the capacitor case, and a stopper (stopper wall) that includes an opening part () for discharging the gas passing through the valve body part and that comes into contact with a portion of the valve body part in the storage part to deform the valve body part. This achieves an increase in gas permeability of the pressure valve and a high operating pressure maintained in the pressure valve.