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:
Dec. 20, 2011

Filed:

May. 12, 2010
Applicants:

Akinori Sudoh, Minato-ku, JP;

Masataka Takeuchi, Minato-ku, JP;

Inventors:

Akinori Sudoh, Minato-ku, JP;

Masataka Takeuchi, Minato-ku, JP;

Assignee:

Showa Denka K.K., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 31/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A graphite material is provided wherein D50% is 2 to 9 μm in particle diameter distribution based on volume as measured by laser diffraction, a specific surface area is 2 to 6 m/g and no coating layer is substantially included in a surface of the particle. Also provided is a graphite material comprising substantially single-composition particles having an isotropic crystal structure, wherein D50% is 2 to 9 μm in particle diameter distribution based on volume as measured by laser diffraction, and a specific surface area is 2 to 6 m/g.


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Sudoh, Akinori. (2011). Graphite material, carbon material for battery electrode, and battery (U.S. Patent No. 8080228). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8080228

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