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:
Feb. 02, 2010
Filed:
Jul. 27, 2004
Applicant:
Kazumi Chiba, Shibukawa, JP;
Inventor:
Kazumi Chiba, Shibukawa, JP;
Assignee:
Japan Carlit Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G 9/00 (2006.01); H01G 9/02 (2006.01); H01M 6/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrolytic solution for an electric double layer capacitor comprising a quaternary ammonium salt in a mixed solvent containing ethylene carbonate and propylene carbonate as an electrolyte. The electrolytic solution for electric double layer capacitor has a low coefficient of viscosity, has an excellent low temperature characteristics of not coagulating at a low temperature, possesses high electrical conductivity over a wide temperature range, and has a long-term reliability.