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:
Nov. 07, 2006
Filed:
Dec. 21, 2004
Yasuo Nami, Toride, JP;
Tokihiko Ogura, Kashiwa, JP;
Naoyuki Yamamoto, Toride, JP;
Takahiro Nakase, Toride, JP;
Hitoshi Suzuki, Matsudo, JP;
Yasuhiro Yoshimura, Ryugasaki, JP;
Toshiharu Kondo, Moriya, JP;
Yasuo Nami, Toride, JP;
Tokihiko Ogura, Kashiwa, JP;
Naoyuki Yamamoto, Toride, JP;
Takahiro Nakase, Toride, JP;
Hitoshi Suzuki, Matsudo, JP;
Yasuhiro Yoshimura, Ryugasaki, JP;
Toshiharu Kondo, Moriya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A heating apparatus of an electromagnetic induction heating type includes a coil and a roller which generates heat by the action of magnetic flux generated from the coil. A recording material is heated by the roller. The heating apparatus further includes a movable magnetic flux decreasing member for decreasing magnetic flux, generated from the coil, acting on the roller. In the heating apparatus, a shutter is moved toward an effective position at which a temperature in a non-conveyance area is lowered when a recording material having a size lower than a maximum conveyable size is conveyed, and is moved away from the effective position depending on the temperature in the non-conveyance area, irrespective of the size of the recording material to be conveyed.