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. 02, 2016
Filed:
Feb. 14, 2011
Yusuke Ohta, Settsu, JP;
Takashi Inada, Settsu, JP;
Makoto Mishiro, Settsu, JP;
Yasushi Nishikawa, Settsu, JP;
Takashi Inada, Settsu, JP;
Yusuke Ohta, Settsu, JP;
Takashi Inada, Settsu, JP;
Makoto Mishiro, Settsu, JP;
Yasushi Nishikawa, Settsu, JP;
Takashi Inada, Settsu, JP;
KANEKA CORPORATION, Osaka, JP;
Abstract
A graphite film showing an extremely low average tearing force is more likely to suffer from various kinds of defects, such as splitting, winding deviation, wrinkling, and poor dimensional accuracy, in a step of producing the graphite film and in a step of processing the graphite film. However, these defects can be prevented by using a graphite film that satisfies the following requirements: 1) having an average tearing force of not more than 0.08 N as determined by Trouser tear method in accordance with JIS K7128; and 2) having sag of not less than 5 mm and not greater than 80 mm as determined by a method of film windability evaluation in accordance with JIS C2151.