公开(公告)号：US20200089147A1

公开(公告)日：2020-03-19

申请号：US16550028

申请日：2019-08-23

申请人： Kenichi Hasegawa ,  Kenji Ishii

发明人： Kenichi Hasegawa ,  Kenji Ishii

IPC分类号： G03G15/20

摘要： A fixing device includes a stationary member, a roller, an endless belt, a pressure rotator, and a lubricant applicator. The endless belt is stretched over the stationary member and the roller. The pressure rotator is disposed opposite the stationary member via the endless belt to form a fixing nip between the pressure rotator and the endless belt on the stationary member. The lubricant applicator contacts the roller over an entire length of the roller in an axial direction of the roller. The lubricant applicator contacts an inner surface of the endless belt and has an axial length equal to or greater than an axial length of the stationary member.

公开(公告)号：US10281850B2

公开(公告)日：2019-05-07

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

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.

公开(公告)号：US20180120741A1

公开(公告)日：2018-05-03

申请号：US15783199

申请日：2017-10-13

申请人： Hiroshi YOSHINAGA ,  Kenji Ishii ,  Hiroyuki Shimada ,  Ippei Fujimoto ,  Takashi Seto ,  Takayuki Seki ,  Kazunari Sawada

发明人： Hiroshi YOSHINAGA ,  Kenji Ishii ,  Hiroyuki Shimada ,  Ippei Fujimoto ,  Takashi Seto ,  Takayuki Seki ,  Kazunari Sawada

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2017 ,  G03G15/55

摘要： An image forming apparatus includes a fixing device that includes a heater to heat a fixing rotator, an opposed rotator to press against the fixing rotator to form a fixing nip therebetween, and at least one rotary body to convey a recording medium to the fixing nip. A controller rotates the fixing rotator in a forward direction to fix a toner image on the recording medium. The controller stops the heater and rotates the fixing rotator in a predetermined rotation direction when a failure occurs while the fixing device is activated. The controller determines that the predetermined rotation direction is the forward direction or a backward direction according to the at least one rotary body that sandwiches the recording medium, if the fixing nip and the at least one rotary body sandwich the recording medium simultaneously when the failure occurs while the fixing device is activated.

公开(公告)号：US09927748B2

公开(公告)日：2018-03-27

申请号：US13751648

申请日：2013-01-28

申请人： Hiroshi Yoshinaga ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Hiromasa Takagi ,  Naoki Iwaya ,  Takuya Seshita ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Teppei Kawata ,  Toshihiko Shimokawa ,  Arinobu Yoshiura ,  Takamasa Hase ,  Takeshi Uchitani ,  Shuutaroh Yuasa ,  Kensuke Yamaji

发明人： Hiroshi Yoshinaga ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Hiromasa Takagi ,  Naoki Iwaya ,  Takuya Seshita ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Teppei Kawata ,  Toshihiko Shimokawa ,  Arinobu Yoshiura ,  Takamasa Hase ,  Takeshi Uchitani ,  Shuutaroh Yuasa ,  Kensuke Yamaji

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes: a rotatable endless fixing belt; a nip forming member arranged inside the fixing belt; a facing rotating body that abuts the nip forming member via the fixing belt to form a nip portion with the fixing belt; a heat source that directly heats up the fixing belt at a portion other than the nip portion; and a supporting member that supports the nip forming member. The fixing device conveys a recording medium carrying an unfixed image to the nip portion to fix the unfixed image to the recording medium, and the supporting member includes a rising portion extending in an abutting direction of the facing rotating body against the fixing belt and having a tip close to an inner circumferential surface of the fixing belt, and is set to have a section modulus of 200 mm3 or higher.

公开(公告)号：US09868473B2

公开(公告)日：2018-01-16

申请号：US14343582

申请日：2012-09-13

申请人： Kenji Ishii ,  Kazuhiko Saeki

发明人： Kenji Ishii ,  Kazuhiko Saeki

IPC分类号： B62D25/20 ,  B32B3/30 ,  B29C53/06 ,  B32B5/02 ,  B32B27/12 ,  B32B27/20 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B29C49/20 ,  B29C51/10 ,  B29C51/12 ,  B29C70/70 ,  B29C51/26 ,  B29L31/22 ,  B29C49/04 ,  B29C51/08 ,  B29L9/00

CPC分类号： B62D25/20 ,  B29C49/04 ,  B29C49/20 ,  B29C51/08 ,  B29C51/10 ,  B29C51/12 ,  B29C51/267 ,  B29C53/063 ,  B29C70/70 ,  B29C2791/006 ,  B29K2715/003 ,  B29L2009/00 ,  B29L2031/22 ,  B32B3/30 ,  B32B5/022 ,  B32B27/12 ,  B32B27/20 ,  B32B27/302 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B2262/101 ,  B32B2262/106 ,  B32B2605/00 ,  Y10T428/24521

摘要： A layered panel in which strength of a hinge can be improved regardless of the kinds of substrates configuring a front wall and a rear wall of the layered panel is provided. A layered panel in accordance with the present invention is a layered panel rotatable about a hinge as a rotary axis, characterized by including a front wall, a rear wall, and an intermediate layer interposed between the front wall and the rear wall, the hinge including the intermediate layer.

公开(公告)号：US20170364000A1

公开(公告)日：2017-12-21

申请号：US15604294

申请日：2017-05-24

申请人： Takayuki Seki ,  Takashi Seto ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Ippei Fujimoto ,  Kazunari Sawada

发明人： Takayuki Seki ,  Takashi Seto ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Ippei Fujimoto ,  Kazunari Sawada

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a nip formation pad which is disposed opposite an endless belt and forms a fixing nip between the endless belt and a pressure rotator. A contact heater is disposed at least at one lateral end of the nip formation pad in a longitudinal direction thereof and heats at least one lateral end of the endless belt in an axial direction thereof. A thermal conduction aid contacts a belt-side face of each of the nip formation pad and the contact heater and conducts heat in the axial direction of the endless belt. A cover is disposed outboard from the thermal conduction aid in a longitudinal direction thereof. The cover covers the belt-side face of the contact heater. The contact heater includes a power supply portion disposed outboard from the thermal conduction aid in the longitudinal direction thereof and covered by the cover.

公开(公告)号：US09846397B2

公开(公告)日：2017-12-19

申请号：US15375757

申请日：2016-12-12

申请人： Kazunari Sawada ,  Kenji Ishii ,  Kazuhito Kishi ,  Takayuki Seki ,  Ippei Fujimoto ,  Hiroshi Yoshinaga ,  Takashi Seto

发明人： Kazunari Sawada ,  Kenji Ishii ,  Kazuhito Kishi ,  Takayuki Seki ,  Ippei Fujimoto ,  Hiroshi Yoshinaga ,  Takashi Seto

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes an endless belt formed into a loop, a heater to heat the endless belt, a nip formation assembly disposed inside the loop, and a pressure rotator to press against the nip formation assembly to form a fixing nip between the endless belt and the pressure rotator. The nip formation assembly includes a pressure pad and a supplementary thermal conductor to conduct heat from the heater in an axial direction of the endless belt. The supplementary thermal conductor has an edge portion dimensioned to distance the supplementary thermal conductor from the endless belt at an end portion of a face over which the endless belt slides in a longitudinal direction of the supplementary thermal conductor. A distance between the edge portion of the supplementary thermal conductor and the endless belt increases toward an end portion of the endless belt in the axial direction thereof.

公开(公告)号：US09829840B2

公开(公告)日：2017-11-28

申请号：US15011886

申请日：2016-02-01

申请人： Takashi Seto ,  Kenji Ishii ,  Susumu Matsusaka ,  Yasuhiko Ogino ,  Shohta Kobashigawa ,  Kazuhito Kishi ,  Ippei Fujimoto ,  Kazunari Sawada ,  Hiroshi Yoshinaga ,  Hiromasa Takagi ,  Takamasa Hase ,  Hiroshi Seo

发明人： Takashi Seto ,  Kenji Ishii ,  Susumu Matsusaka ,  Yasuhiko Ogino ,  Shohta Kobashigawa ,  Kazuhito Kishi ,  Ippei Fujimoto ,  Kazunari Sawada ,  Hiroshi Yoshinaga ,  Hiromasa Takagi ,  Takamasa Hase ,  Hiroshi Seo

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 nip formation pad that presses against a pressure rotator via an endless belt to form a fixing nip between the belt and the pressure rotator, through which a recording medium bearing a toner image is conveyed. A fixing heater is disposed opposite at least a center span of a conveyance span of the belt in an axial direction thereof where the recording medium is conveyed to heat the belt. A first lateral end heater and a second lateral end heater are mounted on the nip formation pad and disposed opposite a first lateral end span and a second lateral end span of an inner circumferential surface of the belt in the axial direction thereof, respectively, to heat the belt. The second lateral end heater is electrically connected in series to the first lateral end heater.

公开(公告)号：US09651905B2

公开(公告)日：2017-05-16

申请号：US15190341

申请日：2016-06-23

申请人： Ippei Fujimoto ,  Kazuhito Kishi ,  Takashi Seto ,  Takayuki Seki ,  Kazunari Sawada ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Hiromasa Takagi ,  Takamasa Hase ,  Yasuhiko Ogino ,  Shohta Kobashigawa

发明人： Ippei Fujimoto ,  Kazuhito Kishi ,  Takashi Seto ,  Takayuki Seki ,  Kazunari Sawada ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Hiromasa Takagi ,  Takamasa Hase ,  Yasuhiko Ogino ,  Shohta Kobashigawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator and a heater disposed inside the fixing rotator to heat the fixing rotator with radiant heat. A pressure rotator presses against the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. A reflector is disposed opposite the heater to reflect the radiant heat radiated from the heater to the fixing rotator. The reflector includes a first parallel plane, a second parallel plane, and a third tilt plane. The second parallel plane is parallel to the first parallel plane and stepped with respect to the first parallel plane. The second parallel plane is disposed closer to the fixing nip and the heater than the first parallel plane. The third tilt plane bridges the first parallel plane and the second parallel plane and is disposed opposite the heater.

公开(公告)号：US20170102652A1

公开(公告)日：2017-04-13

申请号：US15384838

申请日：2016-12-20

申请人： Takahiro IMADA ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Naoki Iwaya ,  Tetsuo Tokuda ,  Hiromasa Takagi ,  Yoshiki Yamaguchi ,  Ippei Fujimoto ,  Takuya Seshita ,  Yutaka Ikebuchi ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Hajime Gotoh

发明人： Takahiro IMADA ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Naoki Iwaya ,  Tetsuo Tokuda ,  Hiromasa Takagi ,  Yoshiki Yamaguchi ,  Ippei Fujimoto ,  Takuya Seshita ,  Yutaka Ikebuchi ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Hajime Gotoh

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

摘要： According to an embodiments, a fixing device includes: an endless fixing member; a heating unit that is provided inside an inner peripheral surface of the fixing member; and a nip forming unit that comes into press-contact with a rotationally driven pressing member with the fixing member interposed therebetween to form a nip. The nip forming unit has a shape in which a center of a contact surface protrudes toward the pressing member compared to both ends. The nip forming unit has a protruding amount at a center toward the pressing member compared to both ends of the nip forming unit in no-load state is set to be less than a bent amount of the nip forming unit when the nip forming unit comes into press-contact with the pressing member with the fixing member interposed therebetween.