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:
Jul. 28, 1998
Filed:
Jan. 17, 1997
Yukio Miya, Kawagoe, JP;
Osamu Sugiyama, Hanno, JP;
Ryota Koike, Tokorozawa, JP;
Takashi Toida, Tokyo, JP;
Yuji Fukazawa, Tokyo, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
A heating roller device including a center shaft, a heat roller rotatably supported on the center shaft, and heating means provided inside the heat roller has the wear resistance of the outer surface of its heat roller outer surface increased and its availability factor enhanced by forming the outer surface of the heat roller with a hard carbon film of hydrogenated amorphous carbon. The hard carbon film is preferably formed on an intermediate layer formed on the outer surface of the heat roller beforehand so and to increase its adhesion to the outer surface. Wear resistance can be further enhanced by forming the outer surface of the heat roller with a hard layer, forming an intermediate layer on the hard layer and forming the hard carbon film on the intermediate layer.