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:
Jun. 13, 2006
Filed:
Nov. 26, 2003
Shigeki Oyama, Shioya-gun, JP;
Manabu Iwaida, Saitama, JP;
Naohiko Oki, Oyama, JP;
Kenichi Murakami, Utsunomiya, JP;
Kouki Ozaki, Kasugai, JP;
Masanori Tsutsui, Kuwana, JP;
Kiyoto Otsuka, Okayama, JP;
Shigeki Oyama, Shioya-gun, JP;
Manabu Iwaida, Saitama, JP;
Naohiko Oki, Oyama, JP;
Kenichi Murakami, Utsunomiya, JP;
Kouki Ozaki, Kasugai, JP;
Masanori Tsutsui, Kuwana, JP;
Kiyoto Otsuka, Okayama, JP;
Honda Motor Co., Ltd., Minato-ku, JP;
Daido Metal Company Ltd., Nagoya, JP;
Kuraray Chemical Co., Ltd., Okayama-ken, JP;
Abstract
A polarizing electrode for an electric double layer capacitor has good moldability and can achieving higher density of electrode and higher capacity, and an electric double layer capacitor employs the same. The electric double layer capacitor is made of an activated carbon obtained by activating a hard-to-graphitize material (for example, phenol resin) with water vapor, and the activated carbon has a median particle size within a range from 4 μm to 8 μm in the particle size distribution and at least a peak observed on the side of smaller particle size than the median particle size in the particle size distribution.