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. 07, 2006
Filed:
Jul. 08, 2004
Kohji Aoki, Nara, JP;
Kohichi Moriyama, Ikoma, JP;
Motoaki Okitsu, Nara, JP;
Hiroaki Hori, Kyoto, JP;
Tatsuya Shinkawa, Nara, JP;
Hideki Goto, Matsumoto, JP;
Kohji Aoki, Nara, JP;
Kohichi Moriyama, Ikoma, JP;
Motoaki Okitsu, Nara, JP;
Hiroaki Hori, Kyoto, JP;
Tatsuya Shinkawa, Nara, JP;
Hideki Goto, Matsumoto, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A heating device for heating a recording sheet. The heating device has a first heater located within a heating roller. The first heater has a heat distribution effective to form a low temperature region in an axially central portion of the heating roller and a high temperature region in each of axially opposite end portions of the heating roller. There is a second heater located within the heating roller that has a heat distribution effective to form a high temperature region in the axially central portion of the heating roller, a low temperature region in each of the opposite end portions of the heating roller, and a second-level high temperature region in each of axially opposite end portions of the high temperature region, the second-level high temperature region being lower in temperature than the high temperature region.