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. 17, 2001
Filed:
May. 13, 1999
Applicant:
Inventors:
Yukari Kibi, Tokyo, JP;
Takashi Saito, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01G 9/00 ;
U.S. Cl.
CPC ...
H01G 9/00 ;
Abstract
To reduce a disparity of voltage between each unit electrical double layer capacitor without an electrical loss when a plurality of the unit electrical double layer capacitors are connected in series to provide an electrical double layer capacitor, a switching element is connected in parallel to each unit electrical double layer capacitor to be individually short-circuited during discharging of the electrical double layer capacitor.