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:
Jul. 24, 2012
Filed:
Apr. 21, 2010
Yuzuru Nanjo, Osaka, JP;
Yuzuru Nanjo, Osaka, JP;
Kyocera Mita Corporation, , JP;
Abstract
A fixing device includes a heating member, a pressing member, a coil, a magnetic core, a path switching member switching a magnetic path between a first path and a second path, and a magnetism adjustment member. The magnetism adjustment member allows a passage of a magnetic flux from the magnetic core towards the heating member within the magnetic field range when the magnetic field path is switched to the first path, and shields the magnetic flux without allowing the passage of the magnetic flux within the magnetic field range when the magnetic path is switched to the second path. Further, the magnetism adjustment member has a plurality of ring-shaped portions formed of a single wire material having an endless shape. Each of the ring-shaped portions extends in a longitudinal direction of the magnetic core according to a size of the sheet.