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:
Jun. 08, 2010
Filed:
Apr. 28, 2008
Satoshi Nishida, Numazu, JP;
Ken-ichi Ogawa, Numazu, JP;
Akira Kato, Mishima, JP;
Isamu Takeda, Suntou-gun, JP;
Katsuhisa Matsunaka, Inagi, JP;
Atsuyoshi Abe, Susono, JP;
Satoshi Nishida, Numazu, JP;
Ken-ichi Ogawa, Numazu, JP;
Akira Kato, Mishima, JP;
Isamu Takeda, Suntou-gun, JP;
Katsuhisa Matsunaka, Inagi, JP;
Atsuyoshi Abe, Susono, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed is an image heating apparatus. The image heating apparatus includes a rotatable heating member for heating an image on a recording material in a nip portion, and a heating unit for heating the heating member from the outside thereof. With this structure, a warm-up time period or a first print-out time period can be reduced, and low power consumption can be accomplished. Further, satisfactory image quality can be realized with no heating (fixing) irregularity. The heating member has a low thermal conductive elastic layer, and a heat storage layer outside the low thermal conductive elastic layer to have a volume heat capacity larger than the low thermal conductive elastic layer. A heat capacity of the heat storage layer per unit surface area of a fixing member is in a range of 100 J/mK to 600 J/mK.