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. 17, 2009
Filed:
Sep. 06, 2007
Hideaki Yamada, Tochigi, JP;
Hajime Makishima, Tochigi, JP;
Yukio Arai, Saitama, JP;
Noriyuki Tajima, Osaka, JP;
Hideaki Yamada, Tochigi, JP;
Hajime Makishima, Tochigi, JP;
Yukio Arai, Saitama, JP;
Noriyuki Tajima, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A fixing apparatus has a heater that includes a magnetic shunt alloy whose Curie temperature is set higher than a fixing temperature; an induction heater that generates an alternating magnetic field applied to the magnetic shunt alloy and performs electromagnetic-induction heating on the heater; and a body controller that controls the induction heater so as to adjust the fixing temperature in each fixing job. The body controller controls the induction heater so as to perform electromagnetic-induction heating on the heater, during a period between fixing jobs. The body controller thereby reduces a temperature difference generated on the heater between portions corresponding to paper feeding and non-paper feeding areas in a previously executed fixing job.