- 专利标题： Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller
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申请号： US10624573申请日： 2003-07-23
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公开(公告)号： US07107681B2公开(公告)日： 2006-09-19
- 发明人: Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
- 申请人： Jun Yura , Takashi Fujita , Hirokazu Ikenoue , Atsushi Nakafuji
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2000-187045 20000622; JP2001-141459 20010511
- 主分类号： B21K1/02
- IPC分类号： B21K1/02
摘要：
A heating roller including a core of hollow cylinder form and wherein a thickness of the core is thicker in a center portion thereof than in both end portions thereof. Further, a heating device may have the heating roller, a fixing device may have the heating roller and the heating device, and an image forming apparatus may have the heating roller, the heating device and the fixing device.