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1. 发明授权

US07995958B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07995958B2
公开(公告)日：2011-08-09
申请号：US12411617
申请日：2009-03-26
申请人： Syoukou Gon , Yuzuru Nanjo , Akihiro Kondo , Eiji Nakajima , Naoyuki Ishida , Kenichi Kasama , Tamami Asari
发明人： Syoukou Gon , Yuzuru Nanjo , Akihiro Kondo , Eiji Nakajima , Naoyuki Ishida , Kenichi Kasama , Tamami Asari
IPC分类号： G03G15/20 , H05B6/02
CPC分类号： G03G15/2042 , G03G2215/2032
摘要： An image forming apparatus includes a fixing unit fixing a toner image onto a sheet. The fixing unit includes a heating member having a sheet conveyed region that is set in accordance with the size of the sheet. The fixing unit further includes a coil generating magnetic field, a fixed core forming a magnetic path, movable cores forming a magnetic path together with the fixed core and arranged along the sheet conveyed region, a shielding member arranged on at least one movable core and shielding magnetism, and a magnetism adjustment unit rotating at least one movable core to switch the position of the shielding member between a shielding position where the shielding member is positioned inside the sheet conveyed region to shield the magnetism and a retracted position where the shielding member is positioned outside the sheet conveyed region to permit pass of the magnetism.
摘要翻译：图像形成装置包括将调色剂图像定影到片材上的定影单元。定影单元包括具有根据片材尺寸设定的片材输送区域的加热构件。定影单元还包括产生磁场的线圈，形成磁路的固定磁芯，与固定磁芯一起形成磁路并沿着薄片传送区域布置的可动磁芯，布置在至少一个可动磁芯和屏蔽层上的屏蔽部件磁性和磁调节单元，其旋转至少一个可动芯，以将屏蔽构件的位置切换到屏蔽构件位于片材输送区域内部的屏蔽位置以屏蔽磁性和屏蔽构件定位的缩回位置在纸张传送区域之外允许磁性通过。

2. 发明申请

US20090175664A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20090175664A1
公开(公告)日：2009-07-09
申请号：US12344940
申请日：2008-12-29
申请人： Yuzuru Nanjo , Eiji Nakajima , Akihiro Kondo , Naoyuki Ishida , Syoukou Gon , Kenichi Kasama
发明人： Yuzuru Nanjo , Eiji Nakajima , Akihiro Kondo , Naoyuki Ishida , Syoukou Gon , Kenichi Kasama
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G2215/2032
摘要： A fixing unit (14) of an image forming apparatus (1) includes a heating member (48) having a first area where a sheet does not come into contact with the heating member (48) and a second area where the sheet comes into contact with the heating member (48). The fixing unit (14) further includes a coil (52) forming a magnetic field, cores (54,56) forming a magnetic path near the coil (52), a nonmagnetic magnetism adjusting member (90) arranged on the magnetic path and having a closed frame, and a switcher (58,60) capable of switching the magnetism adjusting member (90) between a first state where the magnetism adjusting member (90) generates an induction current resulting from the magnetic field to shield the magnetism in the first area, and a second state where the magnetism adjusting member (90) generates no induction current and the magnetism is not shielded in the first area.
摘要翻译：图像形成装置（1）的固定单元（14）包括加热构件（48），其具有片材不与加热构件（48）接触的第一区域和片材接触的第二区域与加热构件（48）。固定单元（14）还包括形成磁场的线圈（52），在线圈（52）附近形成磁路的铁心（54,56），布置在磁路上的非磁性磁调节构件（90）闭合框架和能够在磁调节构件（90）产生由磁场产生的感应电流的第一状态之间切换磁调节构件（90）的切换器（58,60），以在第一状态下屏蔽第一以及第二状态，其中磁调节部件（90）不产生感应电流，并且在第一区域中磁屏蔽不被屏蔽。

3. 发明申请

US20090175644A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20090175644A1
公开(公告)日：2009-07-09
申请号：US12323537
申请日：2008-11-26
申请人： Yuzuru Nanjo , Eiji Nakajima , Akihiro Kondo , Naoyuki Ishida , Syoukou Gon , Kenichi Kasama
发明人： Yuzuru Nanjo , Eiji Nakajima , Akihiro Kondo , Naoyuki Ishida , Syoukou Gon , Kenichi Kasama
IPC分类号： G03G21/20 , G03G15/20
CPC分类号： G03G15/2007 , G03G15/2039 , G03G2215/2032
摘要： An image forming apparatus has an image forming station and a fixing unit. The fixing unit includes a coil for generating a magnetic field for induction heating the heating member. A first core made of a magnetic material is arranged fixedly around the coil. A second core made of a magnetic material is between the first core and the heating member in a generation direction of the magnetic field to form a magnetic path in cooperation with the first core and capable of changing a posture thereof. A shield made of a nonmagnetic metal is arranged along the outer surface of the second core to shield magnetism in the magnetic field and a magnetic shielding portion for changing the posture of the second core between a first posture where the shield shields the magnetism and a second posture where the shield does not shield the magnetism.
摘要翻译：图像形成装置具有图像形成站和定影单元。定影单元包括用于产生用于感应加热加热构件的磁场的线圈。由磁性材料制成的第一芯体固定在线圈周围。由磁性材料制成的第二芯在磁场的产生方向上位于第一芯体和加热构件之间，以与第一芯体协作形成磁路并且能够改变其姿势。由非磁性金属构成的屏蔽沿着第二芯体的外表面布置以屏蔽磁场中的磁性;以及磁屏蔽部分，用于在屏蔽屏蔽屏蔽磁体的第一姿态和第二磁芯之间改变第二磁芯的姿态屏蔽不能屏蔽磁性的姿势。

4. 发明授权

US08078072B2 Image forming apparatus with image fixing device including an induction heater and a shield located between two sections of a core of the induction heater 有权
标题翻译：具有图像定影装置的图像形成装置包括感应加热器和位于感应加热器的芯的两个部分之间的屏蔽
公开(公告)号：US08078072B2
公开(公告)日：2011-12-13
申请号：US12323537
申请日：2008-11-26
申请人： Yuzuru Nanjo , Eiji Nakajima , Akihiro Kondo , Naoyuki Ishida , Syoukou Gon , Kenichi Kasama
发明人： Yuzuru Nanjo , Eiji Nakajima , Akihiro Kondo , Naoyuki Ishida , Syoukou Gon , Kenichi Kasama
IPC分类号： G03G15/20
CPC分类号： G03G15/2007 , G03G15/2039 , G03G2215/2032
摘要： An image forming apparatus has an image forming station and a fixing unit. The fixing unit includes a coil for generating a magnetic field for induction heating the heating member. A first core made of a magnetic material is arranged fixedly around the coil. A second core made of a magnetic material is between the first core and the heating member in a generation direction of the magnetic field to form a magnetic path in cooperation with the first core and capable of changing a posture thereof. A shield made of a nonmagnetic metal is arranged along the outer surface of the second core to shield magnetism in the magnetic field and a magnetic shielding portion for changing the posture of the second core between a first posture where the shield shields the magnetism and a second posture where the shield does not shield the magnetism.
摘要翻译：图像形成装置具有图像形成站和定影单元。定影单元包括用于产生用于感应加热加热构件的磁场的线圈。由磁性材料制成的第一芯体固定在线圈周围。由磁性材料制成的第二芯在磁场的产生方向上位于第一芯体和加热构件之间，以与第一芯体协作形成磁路并且能够改变其姿势。由非磁性金属构成的屏蔽沿着第二芯体的外表面布置以屏蔽磁场中的磁性;以及磁屏蔽部分，用于在屏蔽屏蔽屏蔽磁体的第一姿态和第二磁芯之间改变第二磁芯的姿态屏蔽不能屏蔽磁性的姿势。

5. 发明授权

US07890042B2 Image forming apparatus with fixing unit having induction heating member and shielding member for controlling induction heating 有权
标题翻译：具有固定单元的图像形成装置具有感应加热构件和用于控制感应加热的屏蔽构件
公开(公告)号：US07890042B2
公开(公告)日：2011-02-15
申请号：US12390569
申请日：2009-02-23
申请人： Naoyuki Ishida , Akihiro Kondo , Yuzuru Nanjo , Syoukou Gon , Kenichi Kasama , Eiji Nakajima
发明人： Naoyuki Ishida , Akihiro Kondo , Yuzuru Nanjo , Syoukou Gon , Kenichi Kasama , Eiji Nakajima
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G2215/2032
摘要： An image forming apparatus includes an image forming unit and a fixing unit. The fixing unit includes a heating member; a coil arranged along an outer surface of the heating member for generating a magnetic field for induction heating the heating member; a core arranged to face the heating member with the coil located therebetween in order to form a magnetic path around the coil and made of a magnetic material; a shielding member arranged near the magnetic path generated by the coil, including a closed frame portion and made of a nonmagnetic metal; and a magnetic shielding portion for displacing the shielding member between a retracted position for permitting a magnetic flux to pass along a frame surface virtually formed inside the closed frame portion and a shielding position for shielding magnetism by the penetration of a magnetic flux inside the frame surface.
摘要翻译：图像形成装置包括图像形成单元和定影单元。定影单元包括加热构件; 沿加热构件的外表面布置的线圈，用于产生用于感应加热加热构件的磁场; 芯部，其布置成面对加热构件，线圈位于它们之间，以形成围绕线圈并由磁性材料制成的磁路; 屏蔽构件，布置在由线圈产生的磁路附近，包括闭合框架部分并由非磁性金属制成; 以及磁屏蔽部分，用于使屏蔽构件在用于允许磁通量实质上形成在闭合框架部分内部的框架表面的缩回位置之间移位，以及屏蔽位置，用于通过框架表面内的磁通量的穿透来屏蔽磁性。

6. 发明授权

US07835680B2 Image forming apparatus with induction heating coil unit and a magnetism adjusting member with a closed frame shape 有权
标题翻译：具有感应加热线圈单元的图像形成装置和具有闭合框架形状的磁调节构件
公开(公告)号：US07835680B2
公开(公告)日：2010-11-16
申请号：US12344940
申请日：2008-12-29
申请人： Yuzuru Nanjo , Eiji Nakajima , Akihiro Kondo , Naoyuki Ishida , Syoukou Gon , Kenichi Kasama
发明人： Yuzuru Nanjo , Eiji Nakajima , Akihiro Kondo , Naoyuki Ishida , Syoukou Gon , Kenichi Kasama
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G2215/2032
摘要： A fixing unit (14) of an image forming apparatus (1) includes a heating member (48) having a first area where a sheet does not come into contact with the heating member (48) and a second area where the sheet comes into contact with the heating member (48). The fixing unit (14) further includes a coil (52) forming a magnetic field, cores (54,56) forming a magnetic path near the coil (52), a nonmagnetic magnetism adjusting member (90) arranged on the magnetic path and having a closed frame, and a switcher (58,60) capable of switching the magnetism adjusting member (90) between a first state where the magnetism adjusting member (90) generates an induction current resulting from the magnetic field to shield the magnetism in the first area, and a second state where the magnetism adjusting member (90) generates no induction current and the magnetism is not shielded in the first area.
摘要翻译：图像形成装置（1）的固定单元（14）包括加热构件（48），其具有片材不与加热构件（48）接触的第一区域和片材接触的第二区域与加热构件（48）。固定单元（14）还包括形成磁场的线圈（52），在线圈（52）附近形成磁路的铁心（54,56），布置在磁路上的非磁性磁调节构件（90）闭合框架和能够在磁调节构件（90）产生由磁场产生的感应电流的第一状态之间切换磁调节构件（90）的切换器（58,60），以在第一状态下屏蔽第一以及第二状态，其中磁调节部件（90）不产生感应电流，并且在第一区域中磁屏蔽不被屏蔽。

7. 发明申请

US20090269109A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20090269109A1
公开(公告)日：2009-10-29
申请号：US12390569
申请日：2009-02-23
申请人： Naoyuki Ishida , Akihiro Kondo , Yuzuru Nanjo , Syoukou Gon , Kenichi Kasama , Eiji Nakajima
发明人： Naoyuki Ishida , Akihiro Kondo , Yuzuru Nanjo , Syoukou Gon , Kenichi Kasama , Eiji Nakajima
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G2215/2032
摘要： An image forming apparatus includes an image forming unit and a fixing unit. The fixing unit includes a heating member; a coil arranged along an outer surface of the heating member for generating a magnetic field for induction heating the heating member; a core arranged to face the heating member with the coil located therebetween in order to form a magnetic path around the coil and made of a magnetic material; a shielding member arranged near the magnetic path generated by the coil, including a closed frame portion and made of a nonmagnetic metal; and a magnetic shielding portion for displacing the shielding member between a retracted position for permitting a magnetic flux to pass along a frame surface virtually formed inside the closed frame portion and a shielding position for shielding magnetism by the penetration of a magnetic flux inside the frame surface.
摘要翻译：图像形成装置包括图像形成单元和定影单元。定影单元包括加热构件; 沿加热构件的外表面布置的线圈，用于产生用于感应加热加热构件的磁场; 芯部，其布置成面对加热构件，线圈位于它们之间，以形成围绕线圈并由磁性材料制成的磁路; 屏蔽构件，布置在由线圈产生的磁路附近，包括闭合框架部分并由非磁性金属制成; 以及磁屏蔽部分，用于使屏蔽构件在用于允许磁通量实质上形成在闭合框架部分内部的框架表面的缩回位置之间移位，以及屏蔽位置，用于通过框架表面内的磁通量的穿透来屏蔽磁性。

8. 发明申请

US20090245902A1 IMAGE FORMING APPARATUS 审中-公开
标题翻译：图像形成装置
公开(公告)号：US20090245902A1
公开(公告)日：2009-10-01
申请号：US12393068
申请日：2009-02-26
申请人： Syoukou Gon , Yuzuru Nanjo , Akihiro Kondo , Eiji Nakajima , Naoyuki Ishida , Kenichi Kasama
发明人： Syoukou Gon , Yuzuru Nanjo , Akihiro Kondo , Eiji Nakajima , Naoyuki Ishida , Kenichi Kasama
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G2215/2032
摘要： An image forming apparatus is provided with an image forming station and a fixing unit including a heating member. The fixing unit includes a coil for generating a magnetic field for induction heating the heating member; a first core arranged to face the heating member with the coil located therebetween; a bar-shaped second core including a cut-off portion and arranged in a magnetic path between the first core and the heating member, when seen in a magnetic field generation direction by the coil, to form the magnetic path together with the first core; and a magnetic adjusting mechanism for changing the posture of the second core between a first posture for guiding a magnetic field by retracting the cut-off portion from the magnetic path and a second posture for increasing magnetic resistance by locating the cut-off portion in the magnetic path by rotating the second core about an axis thereof.
摘要翻译：图像形成装置设置有图像形成站和包括加热构件的定影单元。定影单元包括用于产生用于感应加热加热构件的磁场的线圈; 布置成面对加热构件的第一芯，线圈位于其间; 当在线圈的磁场产生方向上看时，包括截止部分并且布置在第一芯体和加热构件之间的磁路中的条形第二芯体与第一芯体一起形成磁路; 以及磁调节机构，用于通过将所述切断部从所述磁路中缩回来引导磁场的第一姿态和用于通过将所述切断部位定位在所述磁路中的所述切断部分来增加磁阻的第二姿态来改变所述第二芯的姿态通过使第二芯绕其轴线旋转。

9. 发明申请

US20070189818A1 FIXING DEVICE 有权
标题翻译：固定装置
公开(公告)号：US20070189818A1
公开(公告)日：2007-08-16
申请号：US11674473
申请日：2007-02-13
申请人： Akihiro Kondo , Naoyuki Ishida , Syoukou Gon
发明人： Akihiro Kondo , Naoyuki Ishida , Syoukou Gon
IPC分类号： G03G15/20
CPC分类号： G03G15/2064
摘要： A fixing device 100 includes a fixing belt 102, a heat source 105, a support member 104, a pressure roller 103, and a reinforcing member 106. The fixing belt 102 has a metal sleeve. The heat source 105 is provided within the fixing belt 102. The support member 104 has a contact surface 104a that is in sliding contact with the inside surface of the fixing belt 102. The pressure roller 103 forms a nip with the bottom surface 104a between which the fixing belt 102 is sandwiched and pressed. The pressure roller 103 drives the fixing belt 102 to rotate. The reinforcing member 106 has a surface contacting the support member 104 on which a plurality of irregularities is formed. The reinforcing member 106 is positioned on a side opposite the support member to the bottom surface 104a, and receives a pressure force applied by the pressure roller 103.
摘要翻译：定影装置100包括定影带102，热源105，支撑构件104，加压辊103和加强构件106。定影带102具有金属套筒。热源105设置在定影带102内。支撑构件104具有与定影带102的内表面滑动接触的接触表面104a。压力辊103与底面104a形成夹持部，夹持并压入定影带102。加压辊103驱动定影带102旋转。加强构件106具有与支撑构件104接触的表面，在该表面上形成有多个不规则区域。加强构件106位于与支撑构件相对的底面104a的一侧，并且承受由加压辊103施加的压力。

10. 发明授权

US07437110B2 Fixing device 有权
标题翻译：固定装置
公开(公告)号：US07437110B2
公开(公告)日：2008-10-14
申请号：US11674473
申请日：2007-02-13
申请人： Akihiro Kondo , Naoyuki Ishida , Syoukou Gon
发明人： Akihiro Kondo , Naoyuki Ishida , Syoukou Gon
IPC分类号： G03G15/20
CPC分类号： G03G15/2064
摘要： A fixing device 100 includes a fixing belt 102, a heat source 105, a support member 104, a pressure roller 103, and a reinforcing member 106. The fixing belt 102 has a metal sleeve. The heat source 105 is provided within the fixing belt 102. The support member 104 has a contact surface 104a that is in sliding contact with the inside surface of the fixing belt 102. The pressure roller 103 forms a nip with the bottom surface 104a between which the fixing belt 102 is sandwiched and pressed. The pressure roller 103 drives the fixing belt 102 to rotate. The reinforcing member 106 has a surface contacting the support member 104 on which a plurality of irregularities is formed. The reinforcing member 106 is positioned on a side opposite the support member to the bottom surface 104a, and receives a pressure force applied by the pressure roller 103.
摘要翻译：定影装置100包括定影带102，热源105，支撑构件104，加压辊103和加强构件106。定影带102具有金属套筒。热源105设置在定影带102内。支撑构件104具有与定影带102的内表面滑动接触的接触表面104a。压力辊103与底面104a形成夹持部，夹持并压入定影带102。加压辊103驱动定影带102旋转。加强构件106具有与支撑构件104接触的表面，在该表面上形成有多个不规则区域。加强构件106位于与支撑构件相对的底面104a的一侧，并且承受由加压辊103施加的压力。

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