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:
Sep. 21, 2010
Filed:
Mar. 12, 2008
Hiroshi Seo, Sagamihara, JP;
Akiko Ito, Machida, JP;
Tadashi Ogawa, Machida, JP;
Satoshi Ueno, Kawasaki, JP;
Kenji Ishii, Kawasaki, JP;
Hiroshi Seo, Sagamihara, JP;
Akiko Ito, Machida, JP;
Tadashi Ogawa, Machida, JP;
Satoshi Ueno, Kawasaki, JP;
Kenji Ishii, Kawasaki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A fixing device includes an excitation coil, a heat-generating layer, a magnetic shunt layer, and a degaussing member. The excitation coil generates a magnetic flux. The heat-generating layer generates heat using the magnetic flux generated by the excitation coil. The magnetic shunt layer transmits heat generated by the heat-generating layer. The degaussing member sandwiches the magnetic shunt layer together with the excitation coil, and selectively performs degaussing by generating a repelling magnetic flux for canceling the magnetic flux generated by the excitation coil so as to activate a self-temperature-control function. The degaussing member selectively refrains from degaussing so as to deactivate the self-temperature-control function.