US 7,486,923 B2
Heat generating roller, fixing equipment, and image forming apparatus
Masaru Imai, Osaka (Japan); Noboru Katakabe, Kyoto (Japan); Youichi Nakamura, Fukuoka (Japan); Naoto Matsuo, Fukuoka (Japan); and Tomoyuki Noguchi, Fukuoka (Japan)
Assigned to Panasonic Corporation, Osaka (Japan)
Appl. No. 11/572,521
PCT Filed Jul. 26, 2005, PCT No. PCT/JP2005/013593
§ 371(c)(1), (2), (4) Date Jan. 23, 2007,
PCT Pub. No. WO2006/011454, PCT Pub. Date Feb. 02, 2006.
Claims priority of application No. 2004-217663 (JP), filed on Jul. 26, 2004.
Prior Publication US 2008/0063445 A1, Mar. 13, 2008
Int. Cl. G03G 15/20 (2006.01)
U.S. Cl. 399—333  [219/619; 399/330] 20 Claims
OG exemplary drawing
 
19. A heating roller that is disposed in a magnetic field formed by an excitation section and generates heat by making a magnetic flux generated in the magnetic field permeate inside, comprising:
a magnetically permeable conductive layer that is made of a temperature compensator material which has a predetermined magnetism at a normal temperature and loses magnetism at a predetermined temperature or above; and
a non-magnetic conductive layer that is laminated on an excitation section side of said magnetically permeable conductive layer.