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:
Sep. 24, 2019
Filed:
Jul. 07, 2015
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Sumitomo Electric Fine Polymer, Inc., Sennan-gun, Osaka, JP;
Shingo Nakajima, Osaka, JP;
Jun Sugawara, Osaka, JP;
Masatoshi Ishikawa, Osaka, JP;
Yoshitaka Ikeda, Osaka, JP;
Kazuhiro Kizawa, Osaka, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-shi, Osaka, JP;
SUMITOMO ELECTRIC FINE POLYMER, INC., Sennan-gun, Osaka, JP;
Abstract
An object of the present invention is to provide a polyimide tube for a fixing belt, the polyimide tube having good toner fixability. A polyimide tube for a fixing belt of an image-forming apparatus according to the present invention includes a polyimide layer that contains a polyimide as a main component and a needle-like filler, the needle-like filler containing a carbon nanotube and needle-like titanium oxide. A product of a thermal diffusivity (m/s) of the polyimide layer and a breaking elongation (%) of the polyimide layer in an axial direction is 35×10or more. An orientation direction of the needle-like filler is preferably an axial direction or a circumferential direction.