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.

Date of Patent:
May. 08, 2007

Filed:

Dec. 29, 2005
Applicants:

Koichi Handa, Tokyo, JP;

Subiantoro, Tokyo, JP;

Takayuki Tsukada, Tokyo, JP;

Jiayi Shan, Tokyo, JP;

Tsuyoshi Okubo, Tokyo, JP;

Inventors:

Koichi Handa, Tokyo, JP;

Subiantoro, Tokyo, JP;

Takayuki Tsukada, Tokyo, JP;

Jiayi Shan, Tokyo, JP;

Tsuyoshi Okubo, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A composite material includes a matrix and carbon fibrous structures. The carbon fibrous structure has a three dimensional network of carbon fibers, each having an outside diameter of 15–100 nm, and has a granular part with which carbon fibers are bound in a state such that the carbon fibers extend outwardly from the granular part, and the granular part being produced in a growth process of the carbon fibers. The additive amount of the carbon fibers is in the range of 0.1 to 30% by weight of total weight of the composite material.


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