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:
Mar. 08, 2005
Filed:
Apr. 27, 2000
Kazuyuki Murakami, Tokyo, JP;
Yasuhiro Mogi, Tokyo, JP;
Kazuteru Tabayashi, Tokyo, JP;
Toru Shimoyama, Kanagawa, JP;
Kazuhiko Yamada, Kanagawa, JP;
Yasuo Shinozaki, Kanagawa, JP;
Kazuyuki Murakami, Tokyo, JP;
Yasuhiro Mogi, Tokyo, JP;
Kazuteru Tabayashi, Tokyo, JP;
Toru Shimoyama, Kanagawa, JP;
Kazuhiko Yamada, Kanagawa, JP;
Yasuo Shinozaki, Kanagawa, JP;
Asahi Glass Company, Limited, Tokyo, JP;
JFE Chemical Corporation, Tokyo, JP;
Abstract
A carbonaceous material having a total pore volume of from 0.5 to 1.5 cm/g per unit mass, a volume of micropores having diameters of from 10 to 20 Å of from 10 to 45% based on the total pore volume, a volume of mesopores having diameters of from 20 to 200 Å of from 35 to 65% based on the total pore volume, a volume of macropores having diameters exceeding 200 Å of not more than 15% based on the total pore volume, and a specific surface area of from 1,000 to 2,500 m/g. The carbonaceous material is incorporated into an electric double layer capacitor to provide increased capacitance.