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:
Aug. 13, 1996
Filed:
Sep. 27, 1994
Michio Okamura, Kanagawa-ken, JP;
Takeshi Morimoto, Kanagawa-ken, JP;
Kazuya Hiratsuka, Kanagawa-ken, JP;
Okamura Laboratory Inc., Yokohama, JP;
ELNA Company Ltd., Fujisawa, JP;
Asahi Glass Company Ltd., Tokyo, JP;
Abstract
An electric power storage apparatus is formed of a plurality of series-connected cells to obtain a desired working voltage, each of the cells being constituted by one electric double-layer capacitor or a plurality of electric double-layer capacitors connected. The plurality of cells are series-connected so that the combined withstanding voltage is not lower than Vr+Vs where Vr represents the working voltage of the cells and Vs represents the withstanding voltage of one of the cells. The apparatus further includes connectors for detachably holding each of the cells respectively, and a circuit in which a diode is connected in parallel to each of the cells, so that a failed one of the cells can be detached and replaced by a new one while the working voltage of the cells is kept within a tolerance limit.