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. 27, 2018
Filed:
Jun. 03, 2014
Applicant:
Otsuka Chemical Co., Ltd., Osaka, JP;
Inventors:
Yoshihisa Tokumaru, Tokushima, JP;
Taiji Nakagawa, Tokushima, JP;
Shoji Hiketa, Tokushima, JP;
Koichi Sorajo, Tokushima, JP;
Assignee:
OTSUKA CHEMICAL CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 11/62 (2013.01); H01G 9/035 (2006.01); H01G 11/64 (2013.01); H01G 9/00 (2006.01); H01G 11/60 (2013.01);
U.S. Cl.
CPC ...
H01G 11/62 (2013.01); H01G 9/035 (2013.01); H01G 9/155 (2013.01); H01G 11/60 (2013.01); H01G 11/64 (2013.01); Y02E 60/13 (2013.01);
Abstract
Provided is a nonaqueous electrolytic solution that provides an electric double layer capacitor having excellent durability. The nonaqueous electrolytic solution is prepared by dissolving a quaternary ammonium salt as an electrolyte in a nonaqueous solvent, and the nonaqueous electrolytic solution comprises a diethylpyrrolidinium salt and/or a 1-ethyl-1,3-dimethylpyrrolidinium salt.