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:
Nov. 19, 2013
Filed:
Jun. 09, 2005
Yasushi Nishikawa, Takatsuki, JP;
Shuhei Wakahara, Settsu, JP;
Mutsuaki Murakami, Settsu, JP;
Kaneka Corporation, Osaka-Shi, JP;
Abstract
A graphite film excelling in heat conductivity, especially, a graphite film of high heat conductivity that even when its thickness is large, would not suffer damage by heat treatment. There is provided a process for producing a graphite film, including graphitizing a raw material film of a polymer film and/or carbonized polymer film, characterized by including (i) holding the raw film in a vessel capable of direct passage of current through voltage application and (ii) applying voltage to the vessel to thereby induce electrification so that graphitization is carried out. There is further provided a process for producing a graphite film, characterized by including the step of holding the raw material film in vessel (A) being electrifiable, subsequently holding the resultant vessel (A) in vessel (B) being electrifiable and effecting current passage through the whole so that graphitization is carried out.