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. 10, 2004
Filed:
Jan. 23, 2002
Koichi Kanno, Tsukuba, JP;
Hirotaka Tsuruya, Tsukuba, JP;
Ryuji Fujiura, Tsukuba, JP;
Takeshi Koshikawa, Tsukuba, JP;
Fumitaka Watanabe, Tsukuba, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Abstract
A carbon foam obtained by heat-treating a mesophase pitch whose softening point is 300° C. or less according to an elevated flow tester, whose ratio (Daromatic/Daliphatic) of the absorption intensity of an aromatic C—H stretching vibration, measured with FT-IR, to the absorption intensity of an aliphatic C—H stretching vibration, measured with FT-IR, is 4.0 or less and whose optically anisotropic content is at least 80%, a graphite foam obtained by heat-treating the carbon foam recited above at a temperature of 2,000° C. or higher and production processes of these.