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. 20, 2001
Filed:
Sep. 20, 1999
Toru Kasai, Tokyo, JP;
Akiyoshi Sugawara, Tokyo, JP;
Jamco Corporation, Tokyo, JP;
Abstract
A heating roller,comprises a surface layer,formed of a prepreg material including carbon fibers having a high tensile strength and a high elastic modulus, and a heating unit,mounted in the inner area of the surface layer and communicated to a power supply unit,formed of a prepreg material including carbon fibers having a high electric resistance. A metal material working as an electrode,communicated to the power supply unit,and the heating unit,is mounted to both ends of the heating roller,The electric resistance of the heating unit,is adjusted either by changing the thickness (number of laminated layers) of the prepreg material including carbon fibers, or by adjusting the mounting angle of the carbon fibers inside a prepreg material being laminated and the angle of the carbon fibers inside another prepreg material being laminated. Moreover, the carbon fibers of the heating unit,are uniformly mounted in the circumferential direction of the roller, so as to obtain a uniform surface temperature.