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:
Aug. 30, 2011
Filed:
Jul. 13, 2009
Takayuki Tsukada, Tokyo, JP;
Jiayi Shan, Tokyo, JP;
Takayuki Tsukada, Tokyo, JP;
Jiayi Shan, Tokyo, JP;
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Abstract
A method for forming a carbon fibrous structure having a plurality of granular parts, to which a plurality of carbon fibers are bound, includes heating a mixture of a carbon source and a catalyst at a temperature between 800 ° C. and 1300 ° C. to produce aggregates of a first intermediate, heating the aggregates of the first intermediate to remove hydrocarbons, at a temperature between 800 ° C. and 1200 ° C. to produce aggregates of a first product, heating the aggregates of the first product at a temperature between 2400 ° C. and 3000 ° C. to produce aggregates of a final product; and pulverizing the aggregates of the final product such that area-based circle-equivalent mean diameter of each aggregate of the carbon fibrous structure of the product is 50-100 μm, bulk density of the carbon fibrous structure is 0.0001-0.02 g/cm, and powder resistance under pressed density of 0.8g/cmis not more than 0.02 Ω·cm.