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. 07, 2016
Filed:
Oct. 23, 2012
Applicant:
Kaneka Corporation, Osaka-shi, Osaka, JP;
Inventors:
Yusuke Ohta, Settsu, JP;
Makoto Kutsumizu, Settsu, JP;
Takashi Inada, Settsu, JP;
Satoshi Katayama, Settsu, JP;
Yasushi Nishikawa, Settsu, JP;
Assignee:
KANEKA CORPORATION, Osaka-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 31/04 (2006.01); H01L 23/373 (2006.01);
U.S. Cl.
CPC ...
C01B 31/04 (2013.01); H01L 23/373 (2013.01); H01L 2924/0002 (2013.01); Y10T 428/24628 (2015.01);
Abstract
A re-forming process is carried out in which a material graphite film is heat-treated to not less than 2000° C. while the material graphite film is being pressured. Through the re-forming process, sag of a graphite film is controlled. By using, during the re-forming process, a plurality of inner cores having respective different surface states, it is possible to produce a graphite film having two or more sag forms which have respective effects.