Electric heating – Inductive heating – With heat exchange
Reexamination Certificate
2005-03-29
2005-03-29
Leung, Philip H. (Department: 3742)
Electric heating
Inductive heating
With heat exchange
C219S670000, C219S663000, C399S328000
Reexamination Certificate
active
06872925
ABSTRACT:
An image heating device includes a heat generating member that heats a body to be heated that is allowed to travel while carrying an image, an excitation unit that is provided close to the heat generating member and generates magnetic flux so as to cause the heat generating member to generate heat by electromagnetic induction, and a heat generation suppressing unit that suppresses an amount of heat generated in the heat generating member by regulating magnetic flux generated by the excitation unit. The heat generation suppressing unit suppresses heat generation of the heat generating member in a region corresponding to a region including at least a center portion of the body to be heated in a width direction. Thus, an amount of heat generated in the width direction can be regulated using a simple configuration at a reduced cost. Further, when the heat generation suppressing unit is operated, diffusion of magnetic flux into a wide area can be prevented.
REFERENCES:
patent: 6037576 (2000-03-01), Okabayashi et al.
patent: 6373036 (2002-04-01), Suzuki
patent: 6483088 (2002-11-01), Uehara et al.
patent: 10-74009 (1998-03-01), None
patent: 2001-60490 (2001-03-01), None
patent: WO 0229498 (2002-04-01), None
Asakura Kenji
Fujimoto Keisuke
Imai Masaru
Katakabe Noboru
Leung Philip H.
Matsushita Electric - Industrial Co., Ltd.
Merchant & Gould P.C.
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