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. 12, 2011
Filed:
May. 09, 2007
Applicants:
Masako Tanaka, Kawasaki, JP;
Yasuo Saito, Kawasaki, JP;
Inventors:
Masako Tanaka, Kawasaki, JP;
Yasuo Saito, Kawasaki, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An activated carbon material having a BET specific surface area of 10 to 1,000 m/g as measured by means of a nitrogen adsorption method, and the ratio of the height of the D peak (1,360 cm) of a Raman spectrum of the activated carbon material to that of the G peak (1,580 cm−) of the Raman spectrum is 0.8 to 1.2. When the activated carbon material of the present invention is used as a polarizable electrode material of an electric double layer capacitor, high capacitance per electrode is attained without application of excessive voltage.