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81. 发明申请

US20110299899A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 有权
标题翻译：固定装置和成像装置的图像形成装置
公开(公告)号：US20110299899A1
公开(公告)日：2011-12-08
申请号：US13109346
申请日：2011-05-17
申请人： Yasunori ISHIGAYA , Masahiro Samei
发明人： Yasunori ISHIGAYA , Masahiro Samei
IPC分类号： G03G15/20
CPC分类号： G03G15/205 , G03G2215/2035
摘要： A fixing device includes a fixing rotary body inside which a heat generator is disposed and an exciting coil unit disposed opposite the heat generator via the fixing rotary body. A first moving mechanism is connected to one of the heat generator and the exciting coil unit to move the one of the heat generator and the exciting coil unit between a first position where the exciting coil unit is disposed away from the heat generator and a second position where the exciting coil unit is disposed closer to the heat generator. The exciting coil unit heats a first heat generation layer of the fixing rotary body at the first position, and heats both the first heat generation layer of the fixing rotary body and a second heat generation layer of the heat generator at the second position.
摘要翻译：定影装置包括：固定旋转体，其内设有发热体;激励线圈单元，经由定影旋转体设置在发热体的对面。第一移动机构连接到发热体和励磁线圈单元之一，以将发热体和励磁线圈单元之一移动到激励线圈单元远离发热体的第一位置和第二位置励磁线圈单元设置在靠近发热体的位置。励磁线圈单元在第一位置处加热固定旋转体的第一发热层，并且在第二位置加热固定旋转体的第一发热层和发热体的第二发热层。

82. 发明授权

US06577839B2 Fixing device that uniformly heats unfixed toner images along a fixing nip portion 失效
标题翻译：定影装置，其可以沿定影辊隙部分均匀地加热未定影的调色剂图像
公开(公告)号：US06577839B2
公开(公告)日：2003-06-10
申请号：US09978715
申请日：2001-10-18
申请人： Masahiro Samei
发明人： Masahiro Samei
IPC分类号： G03G1520
CPC分类号： G03G15/2064 , G03G15/2042 , G03G15/2053 , G03G2215/2016 , G03G2215/2032
摘要： A fixing device includes a fixing nip portion that conveys a recording material. As the recording material is conveyed, the fixing nip portion melts and fixes unfixed toner images on the recording material. The fixing device includes a first rotating element having a roller shape, an induction heating device, and a pressing member. The induction heating device has an exciting coil wound along the outer or inner peripheral surface of the first rotating element that heats the first rotating element by electromagnetic induction. The exciting coil has a clearance which changes in a direction of an axis of rotation of the heating roller to thereby vary the magnetic field intensity in the exciting coil. The pressing member is pressed into contact with the first rotating element, or a second rotating element heated by the first rotating element, and is rotated in the forward direction to form the fixing nip portion.
摘要翻译：定影装置包括传送记录材料的定影夹持部分。当记录材料被传送时，定影夹持部分将未定影的调色剂图像熔化并固定在记录材料上。定影装置包括具有辊状的第一旋转元件，感应加热装置和按压部件。感应加热装置具有沿着第一旋转元件的外周面或内周面缠绕的励磁线圈，其通过电磁感应加热第一旋转元件。励磁线圈具有在加热辊的旋转轴线的方向上变化的间隙，从而改变励磁线圈中的磁场强度。按压构件与第一旋转元件或由第一旋转元件加热的第二旋转元件压接，并且向前方向旋转以形成定影夹持部。

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