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:
Dec. 14, 1999
Filed:
Oct. 22, 1997
Applicant:
Inventors:
Tsuneo Miyamoto, Moriyama, JP;
Takashi Kuraoka, Kusatsu, JP;
Junya Kanetake, Moriyama, JP;
Naoki Nishiura, Moriyama, JP;
Nobuaki Kobayashi, Moriyama, JP;
Tetsuo Sadamitsu, Moriyama, JP;
Assignee:
Gunze Limited, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; B28B / ;
U.S. Cl.
CPC ...
428 369 ; 428 3691 ; 428338 ; 428421 ; 4284735 ; 428 345 ; 524429 ; 524430 ; 524433 ; 264311 ; 399330 ;
Abstract
The present invention relates to a heat-conductive polyimide film comprising a heat-conductive powder dispersed therein with a concentration gradient. The film can be produced, for example, by centrifugal casting. The film can be used as an excellent component or member in those fields in which heat conductivity is required in addition to mechanical characteristics, heat resistance and chemical resistance. For example, it is used as a thermal fixation member in a laser printer.