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. 24, 2008
Filed:
Apr. 29, 2004
Masa-aki Suzuki, Osaka, JP;
Hidehiro Sasaki, Moriguchi, JP;
Yasunori Morinaga, Suita, JP;
Masahiro Deguchi, Hirakata, JP;
Yuka Yamada, Nara, JP;
Nobuyasu Suzuki, Nara, JP;
Masa-aki Suzuki, Osaka, JP;
Hidehiro Sasaki, Moriguchi, JP;
Yasunori Morinaga, Suita, JP;
Masahiro Deguchi, Hirakata, JP;
Yuka Yamada, Nara, JP;
Nobuyasu Suzuki, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Conventional porous carbon materials obtained by carbonizing an organic gel were prone to shrinkage during their manufacture, in the course of which the density rose and the specific surface area decreased. Another problem was that density and specific surface area were difficult to control after an organic gel had already been formed. In the present invention, a carbon material with a large specific surface area is formed by forming a composite porous material having a reticulated skeleton and composed of a dry gel of an inorganic oxide, and taking advantage of the reaction of this dry gel of an inorganic oxide as a structural support. In one method, a carbon material is formed in this reticulated skeleton in a state in which the characteristics of a dry gel of an inorganic oxide with a large specific surface area are maintained. In another method, the specific surface area of a carbon material is further increased by removing the inorganic oxide of the reticulated skeleton in which the carbon material was formed.