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:
May. 21, 2019
Filed:
Jul. 14, 2017
Gs Yuasa International Ltd., Kyoto-shi, JP;
Takeshi Itagaki, Kyoto, JP;
Takeyuki Shiraishi, Kyoto, JP;
GS YUASA INTERNATIONAL LTD., Kyoto-Shi, Kyoto, JP;
Abstract
An electric storage apparatus includes an electric storage device and a protective circuit for cutting off a power path when detecting abnormality including overcharge, the protective circuit being connected to an outside connecting terminal, to which a power generator and an outside load operated by electric power from the electric storage apparatus are connected. The protective circuit includes a charging or discharging path connecting the electric storage device to the outside connecting terminal, a potential difference measuring unit for measuring a potential difference at two points on the charging or discharging path, the two points on the charging or discharging path being located between a positive electrode of the electric storage device and the outside connecting terminal, a self-holding switch disposed between the two points on the charging or discharging path, and a current measuring unit for measuring a current.