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41. 发明申请

US20150125193A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20150125193A1
公开(公告)日：2015-05-07
申请号：US14531313
申请日：2014-11-03
申请人： Kenji ISHII , Hiromasa TAKAGI , Takayuki SEKI , Keitaro SHOJI
发明人： Kenji ISHII , Hiromasa TAKAGI , Takayuki SEKI , Keitaro SHOJI
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/2025 , G03G2215/2029 , G03G2215/2032 , G03G2215/2035 , G03G2215/2038
摘要： A fixing device includes a fixing rotator, a nip formation pad disposed opposite an inner circumferential surface of the fixing rotator, and a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A support is disposed opposite the pressure rotator via the nip formation pad to support the nip formation pad against pressure from the pressure rotator. The nip formation pad conducts heat in a thickness direction thereof perpendicular to an axial direction of the fixing rotator and a recording medium conveyance direction. The nip formation pad includes a multi-conductivity layer having a thermal conductivity varying in the axial direction of the fixing rotator and a support side layer contacting the support and having a thermal conductivity greater than a thermal conductivity of the support.
摘要翻译：定影装置包括固定旋转体，与定影旋转体的内周面相对配置的压区形成垫，以及经由固定旋转体压靠在压区形成垫上的压力旋转体，在固定旋转体和压力旋转体之间形成定影辊隙传送记录媒体。支撑件通过压区形成垫与压力旋转体相对设置，以支撑压区形成垫抵抗来自压力旋转器的压力。压区形成垫沿与固定旋转体的轴向垂直的厚度方向和记录介质输送方向传导热量。压区形成垫包括具有在固定旋转体的轴向上变化的热导率的多导电层和与支撑体接触并具有大于载体的热导率的导热性的支撑侧层。

42. 发明申请

US20150055994A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20150055994A1
公开(公告)日：2015-02-26
申请号：US14467341
申请日：2014-08-25
申请人： Keitaro SHOJI , Kenji ISHII , Hiromasa TAKAGI , Takayuki SEKI
发明人： Keitaro SHOJI , Kenji ISHII , Hiromasa TAKAGI , Takayuki SEKI
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and an opposed rotator disposed opposite the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed opposite the fixing rotator to heat the fixing rotator. A nip formation pad is disposed opposite an inner circumferential surface of the fixing rotator. The nip formation pad includes a base, a first thermal conductor sandwiched between the base and the fixing rotator and having a first thermal conductivity greater than a thermal conductivity of the base, and a bulge projecting from the first thermal conductor toward the opposed rotator at a downstream end of the first thermal conductor in a recording medium conveyance direction.
摘要翻译：定影装置包括可沿预定旋转方向旋转的定影旋转器和与定影旋转体相对设置的相对旋转体，以在其间传送承载有调色剂图像的记录介质的定影辊隙。加热器与定影旋转器相对设置，以加热定影旋转器。压区形成垫与定影旋转体的内周面相对设置。压区形成垫包括基座，夹在基座和固定旋转体之间的第一热导体，其第一导热率大于基座的导热率，以及从第一导热体向相对旋转体突出的凸起，第一热导体的下游端在记录介质输送方向上。

43. 发明申请

US20180173138A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180173138A1
公开(公告)日：2018-06-21
申请号：US15827085
申请日：2017-11-30
申请人： Takayuki SEKI , Takashi SETO , Kenji ISHII , Hiroshi YOSHINAGA , Ippei FUJIMOTO , Kazunari SAWADA , Hiroyuki SHIMADA
发明人： Takayuki SEKI , Takashi SETO , Kenji ISHII , Hiroshi YOSHINAGA , Ippei FUJIMOTO , Kazunari SAWADA , Hiroyuki SHIMADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2017 , G03G15/0189 , G03G15/2053 , G03G15/2064 , G03G2215/2035
摘要： A fixing device includes a lateral end heater, disposed opposite a lateral end of an inner circumferential surface of a fixing rotator in an axial direction thereof, to heat the fixing rotator and a thermal conduction aid contacting the fixing rotator and the lateral end heater to conduct heat. The lateral end heater includes a power supply portion disposed outboard from a lateral end of the thermal conduction aid in a longitudinal direction thereof and disposed opposite the inner circumferential surface of the fixing rotator. The power supply portion includes an electrode. A cover covers the power supply portion and includes a cover face disposed opposite the inner circumferential surface of the fixing rotator. A height adjuster adjusts a height of the cover face of the cover and causes the cover face to define an identical plane with a fixing rotator side face of the thermal conduction aid.

44. 发明申请

US20180284669A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180284669A1
公开(公告)日：2018-10-04
申请号：US15924631
申请日：2018-03-19
申请人： Ippei FUJIMOTO , Hiroshi YOSHINAGA , Kenji ISHII , Hiroyuki SHIMADA , Takashi SETO , Takayuki SEKI , Kazunari SAWADA
发明人： Ippei FUJIMOTO , Hiroshi YOSHINAGA , Kenji ISHII , Hiroyuki SHIMADA , Takashi SETO , Takayuki SEKI , Kazunari SAWADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2039 , G03G15/2053 , G03G15/206
摘要： A fixing device includes a fixing rotator and a lateral end heater to heat a lateral end span of the fixing rotator in an axial direction thereof. A thermal conduction aid contacts the fixing rotator. A nip formation pad contacts the thermal conduction aid. A lateral end temperature detector detects a temperature of the fixing rotator in a lateral end detection span in the axial direction of the fixing rotator. The thermal conduction aid contacts the nip formation pad in a first span including the lateral end detection span in the axial direction of the fixing rotator with a first contact area. The thermal conduction aid contacts the nip formation pad in a second span disposed outboard from the first span in the axial direction of the fixing rotator with a second contact area smaller than the first contact area.

45. 发明申请

US20170176906A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
公开(公告)号：US20170176906A1
公开(公告)日：2017-06-22
申请号：US15375817
申请日：2016-12-12
申请人： Kazunari SAWADA , Kenji ISHII , Kazuhito KISHI , Takayuki SEKI , Ippei FUJIMOTO , Takashi SETO , Hiroshi YOSHINAGA , Misaki SHIMIZU
发明人： Kazunari SAWADA , Kenji ISHII , Kazuhito KISHI , Takayuki SEKI , Ippei FUJIMOTO , Takashi SETO , Hiroshi YOSHINAGA , Misaki SHIMIZU
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/2035
摘要： A fixing device includes a flexible endless belt formed into a loop and having an inner circumferential surface, a heater to heat the endless belt, and a nip formation assembly disposed inside the loop formed by the endless belt. The nip formation assembly includes a pressure pad made of heat-resistant resin including a hollow filler, and a supplementary thermal conductor having a belt sliding-contact face over which the inner circumferential surface of the endless belt slides. The supplementary thermal conductor is interposed between the endless belt and the pressure pad to conduct heat from the heater in an axial direction of the endless belt. The fixing device further includes a pressure rotator to press against the nip formation assembly via the endless belt to form a fixing nip between the endless belt and the pressure rotator, through which a recording medium bearing a toner image is conveyed.

46. 发明申请

US20180157198A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180157198A1
公开(公告)日：2018-06-07
申请号：US15804459
申请日：2017-11-06
申请人： Takashi SETO , Kenji ISHII , Hiroshi YOSHINAGA , Takayuki SEKI , Ippei FUJIMOTO , Hiroyuki SHIMADA , Kazunari SAWADA , Ryohei MATSUDA
发明人： Takashi SETO , Kenji ISHII , Hiroshi YOSHINAGA , Takayuki SEKI , Ippei FUJIMOTO , Hiroyuki SHIMADA , Kazunari SAWADA , Ryohei MATSUDA
IPC分类号： G03G15/20
CPC分类号： G03G15/2025 , G03G15/2028 , G03G15/2053 , G03G2215/2035
摘要： A fixing device includes a belt, a pressure rotator disposed opposite the belt, and a nip formation unit that forms a fixing nip between the belt and the pressure rotator. The nip formation unit includes a guide face disposed upstream from the fixing nip in a rotation direction of the belt and contoured to separate from the pressure rotator in a direction opposite the rotation direction of the belt. The guide face is adhered with a lubricant moved from an inner circumferential surface of the belt. The belt rotates in the rotation direction when an outer circumferential surface of the belt has a temperature lower than a fixing temperature at which the belt fixes a toner image on a recording medium. The belt rotating in the rotation direction brings the lubricant adhered to the guide face into contact with the belt.

47. 发明申请

US20180017910A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180017910A1
公开(公告)日：2018-01-18
申请号：US15627704
申请日：2017-06-20
申请人： Kazunari SAWADA , Ippei FUJIMOTO , Kenji ISHII , Takashi SETO , Hiroshi YOSHINAGA , Takayuki SEKI
发明人： Kazunari SAWADA , Ippei FUJIMOTO , Kenji ISHII , Takashi SETO , Hiroshi YOSHINAGA , Takayuki SEKI
IPC分类号： G03G15/20
CPC分类号： G03G15/2025 , G03G15/2032 , G03G15/2053 , G03G2215/025 , G03G2215/2035
摘要： A fixing device includes a nip former including a first face to form a fixing nip, a second face being disposed upstream from the first face in a rotation direction of a rotator and defining a predetermined angle relative to the first face, and a bent portion coupling the first face to the second face. An inner circumferential surface of the rotator slides over the first face. A lateral end accumulation portion and a center accumulation portion are defined by the second face and the bent portion of the nip former and the inner circumferential surface of the rotator. The lateral end accumulation portion is accumulated with a lubricant in a first amount. The center accumulation portion is disposed inboard from the lateral end accumulation portion in an axial direction of the rotator and accumulated with the lubricant in a second amount greater than the first amount.

48. 发明申请

US20180335733A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING FIXING DEVICE 审中-公开
公开(公告)号：US20180335733A1
公开(公告)日：2018-11-22
申请号：US15980123
申请日：2018-05-15
申请人： Ryohei MATSUDA , Ippei FUJIMOTO , Kenji ISHII , Hiroshi YOSHINAGA , Takayuki SEKI , Kazunari SAWADA
发明人： Ryohei MATSUDA , Ippei FUJIMOTO , Kenji ISHII , Hiroshi YOSHINAGA , Takayuki SEKI , Kazunari SAWADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2017 , G03G15/2053 , G03G15/2064 , G03G2215/2035
摘要： A fixing device includes an endless fixing belt, a heat source, an opposed member, a nip formation pad, and a heat conductive member. The nip formation pad includes an abutment region, a first opening portion, and second opening portions. The abutment region includes a plurality of abutment surfaces abutting a first face of the heat conductive member. The first opening portion is disposed at a center of the abutment region to form a non-contact area at which the nip formation pad does not contact the heat conductive member. The abutment region includes an upstream abutment area and a downstream abutment area from the first opening portion in a direction of conveyance of a recording medium. The second opening portions divide at least one area of the upstream abutment area and the downstream abutment area into a plurality of portions in a longitudinal direction of the nip formation pad.

49. 发明申请

US20170185021A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20170185021A1
公开(公告)日：2017-06-29
申请号：US15378668
申请日：2016-12-14
申请人： Takayuki SEKI , Kenji ISHII , Kazuhito KISHI , Takashi SETO , Hiroshi YOSHINAGA , Ippei FUJIMOTO , Misaki SHIMIZU , Kazunari SAWADA
发明人： Takayuki SEKI , Kenji ISHII , Kazuhito KISHI , Takashi SETO , Hiroshi YOSHINAGA , Ippei FUJIMOTO , Misaki SHIMIZU , Kazunari SAWADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/0132 , G03G2215/2035
摘要： A fixing device includes a fixing rotator and at least one heater, disposed opposite an inner circumferential surface of the fixing rotator, to heat the fixing rotator. The at least one heater includes a heat generator to generate heat. A lateral end heater is disposed at least at one lateral end of a nip formation pad in a longitudinal direction of the nip formation pad. The lateral end heater heats at least one lateral end of the fixing rotator in an axial direction of the fixing rotator. The lateral end heater includes a base, a resistor, mounted on the base, to generate heat, and an electrode coupled to the resistor to supply power to the resistor. The electrode is disposed outboard from the heat generator of the at least one heater in the axial direction of the fixing rotator.

50. 发明申请

US20170185009A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20170185009A1
公开(公告)日：2017-06-29
申请号：US15377234
申请日：2016-12-13
申请人： Hiroshi YOSHINAGA , Kenji ISHII , Kazuhito KISHI , Takashi SETO , Takayuki SEKI , Ippei FUJIMOTO , Kazunari SAWADA
发明人： Hiroshi YOSHINAGA , Kenji ISHII , Kazuhito KISHI , Takashi SETO , Takayuki SEKI , Ippei FUJIMOTO , Kazunari SAWADA
IPC分类号： G03G15/20
CPC分类号： G03G15/2007 , G03G15/2042 , G03G15/2053 , G03G2215/2035
摘要： A fixing device includes an endless belt, a first radiant heater including a first heat generator to heat the endless belt, and a second radiant heater including a second heat generator, disposed outboard from the first heat generator in an axial direction of the endless belt, to heat the endless belt. A nip formation pad includes a nip-side face disposed opposite the endless belt. A contact heater heats at least one lateral end of the endless belt in the axial direction of the endless belt. The contact heater includes a nip-side face disposed opposite the endless belt. A thermal conduction aid covers the nip-side face of the nip formation pad and the nip-side face of the contact heater and conducts heat applied to the endless belt in the axial direction of the endless belt.

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