公开(公告)号：US20090074467A1

公开(公告)日：2009-03-19

申请号：US12209583

申请日：2008-09-12

申请人： Takuya Seshita ,  Masayuki Ishii ,  Hiroshi Yamashita ,  Naohiro Watanabe ,  Shinichi Wakamatsu ,  Tsuyoshi Sugimoto

发明人： Takuya Seshita ,  Masayuki Ishii ,  Hiroshi Yamashita ,  Naohiro Watanabe ,  Shinichi Wakamatsu ,  Tsuyoshi Sugimoto

IPC分类号： G03G15/08

CPC分类号： G03G9/0821 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09733 ,  G03G9/09783 ,  G03G2215/0607 ,  G03G2215/0614

摘要： An image forming apparatus including an image bearing member to bear a latent electrostatic image, a charging device to charge the image bearing member, an irradiating device to irradiate the image bearing member with light to form the latent electrostatic image, a developing device to develop the latent electrostatic image with toner to form a visualized image, a transfer device to transfer the visualized image to a recording medium, a lubricant application device to apply a lubricant to the surface of the image bearing member, a cleaning device to clean the surface of the image bearing member, wherein the toner has a ratio A of from 0.3 to 1.7 obtained by the following Relationship (1), particulates P comprising resin particulates and inorganic particulates are added to the toner and the resin particulates P1 have an average primary particle diameter of from 60 to 600 nm, ratio A=Mother toner BET specific surface area/Mother toner volume average particle diameter Relationship (1).

摘要翻译： 一种图像形成装置，包括：承载静电潜像的图像承载部件;对图像承载部件充电的充电装置;照射装置，用光照射图像承载部件以形成静电潜像;显影装置， 具有调色剂的静电潜像以形成可视化图像，将可视化图像转印到记录介质的转印装置，向图像承载部件的表面施加润滑剂的润滑剂施加装置，清洁装置的表面的清洁装置 图像承载部件，其中调色剂通过以下关系式（1）获得的比例A为0.3至1.7，将包含树脂颗粒和无机颗粒的颗粒P加入到调色剂中，并且树脂颗粒P1的平均初级粒径为 从60到600nm，比例A =母体调色剂BET比表面积/母体调色剂体积平均粒径关系（1）。

公开(公告)号：US20080280224A1

公开(公告)日：2008-11-13

申请号：US12112514

申请日：2008-04-30

申请人： Ryota Inoue ,  Masayuki Ishii ,  Yoshihiro Moriya ,  Takuya Seshita ,  Shingo Sakashita ,  Chiaki Tanaka

发明人： Ryota Inoue ,  Masayuki Ishii ,  Yoshihiro Moriya ,  Takuya Seshita ,  Shingo Sakashita ,  Chiaki Tanaka

IPC分类号： G03G9/10

CPC分类号： G03G9/1075 ,  G03G9/1135 ,  G03G9/1136

摘要： To provide a method for producing a carrier including treating a coating layer on a surface of a core material with a polymer precursor in a supercritical fluid and/or a subcritical fluid so as to add the polymer precursor to the coating layer, and subjecting the coating layer to oxidation treatment so as to form a polymer from the polymer precursor in the coating layer, and a carrier produced by the method.

摘要翻译： 提供一种制造载体的方法，包括在超临界流体和/或亚临界流体中用聚合物前体处理芯材表面上的涂层，以将聚合物前体加入到涂层中，并对涂层 以从涂层中的聚合物前体形成聚合物，以及通过该方法制备的载体。

公开(公告)号：US08084181B2

公开(公告)日：2011-12-27

申请号：US12112514

申请日：2008-04-30

申请人： Ryota Inoue ,  Masayuki Ishii ,  Yoshihiro Moriya ,  Takuya Seshita ,  Shingo Sakashita ,  Chiaki Tanaka

发明人： Ryota Inoue ,  Masayuki Ishii ,  Yoshihiro Moriya ,  Takuya Seshita ,  Shingo Sakashita ,  Chiaki Tanaka

IPC分类号： G03G5/00

CPC分类号： G03G9/1075 ,  G03G9/1135 ,  G03G9/1136

摘要： To provide a method for producing a carrier including treating a coating layer on a surface of a core material with a polymer precursor in a supercritical fluid and/or a subcritical fluid so as to add the polymer precursor to the coating layer, and subjecting the coating layer to oxidation treatment so as to form a polymer from the polymer precursor in the coating layer, and a carrier produced by the method.

摘要翻译： 提供一种制造载体的方法，包括在超临界流体和/或亚临界流体中用聚合物前体处理芯材表面上的涂层，以将聚合物前体加入到涂层中，并对涂层 以从涂层中的聚合物前体形成聚合物，以及通过该方法制备的载体。

公开(公告)号：US11567435B2

公开(公告)日：2023-01-31

申请号：US17559230

申请日：2021-12-22

申请人： Takuya Seshita

发明人： Takuya Seshita

IPC分类号： G03G15/20

摘要： A fixing device includes a rotator, a heat source to heat the rotator, a first thermal equalization plate, a second thermal equalization plate, and an overheating preventer. The first thermal equalization plate and the second equalization plate are in contact with the heat source. The overheating preventer is in contact with one end of the second thermal equalization plate in an axial direction of the rotator. The first thermal equalization plate is in contact with a portion of the heat source, and the portion of the heat source is farther from a center of the rotator than the one end of the second thermal equalization plate in the axial direction of the rotator. The first thermal equalization plate is spaced apart from the one end of the second thermal equalization plate.

公开(公告)号：US20200033764A1

公开(公告)日：2020-01-30

申请号：US16521914

申请日：2019-07-25

申请人： Hiroshi Kajiyama ,  Naoki Iwaya ,  Hitoshi Fujiwara ,  Takuya Seshita ,  Takahiro Imada ,  Yoshiharu Takahashi ,  Natsuki Watanabe

发明人： Hiroshi Kajiyama ,  Naoki Iwaya ,  Hitoshi Fujiwara ,  Takuya Seshita ,  Takahiro Imada ,  Yoshiharu Takahashi ,  Natsuki Watanabe

IPC分类号： G03G15/20

摘要： An image forming apparatus includes a pressing device, an apparatus body, an opening body, and a vibration insulator. The pressing device housed in the apparatus body is configured to press a pressing body to a pressing target body. The opening body is configured to open and close to the apparatus body. The opening body presses a pressing target portion of the apparatus body, at a first pressing portion to cancel a pressing state of the pressing device by opening of the opening body and at a second pressing portion to enter the pressing state of the pressing device by closing of the opening body. The vibration insulator is provided on at least one of the pressing target portion and the second pressing portion, at a contact portion at which the pressing target portion contacts the second pressing portion when the first pressing portion cancels the pressing state.

公开(公告)号：US20180329342A1

公开(公告)日：2018-11-15

申请号：US15970819

申请日：2018-05-03

申请人： Takuya Seshita ,  Kohichi Utsunomiya ,  Hajime Gotoh ,  Takahiro Imada ,  Yutaka Ikebuchi

发明人： Takuya Seshita ,  Kohichi Utsunomiya ,  Hajime Gotoh ,  Takahiro Imada ,  Yutaka Ikebuchi

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/1615 ,  G03G15/2025 ,  G03G15/2053 ,  G03G15/206 ,  G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes a driving unit, a pressing roller, a heater, a fixing belt, a pressing roller, a nip formation pad that presses against an inner surface of the fixing belt toward the pressing roller via the fixing belt to form a nip, a separation mechanism, a lubricant between the fixing belt and the nip formation pad, and a processor to execute a warming-up operation of the fixing device. In the warming-up operation, before the heater heats the fixing belt, the separation mechanism moves the nip formation pad in a direction of separating the nip formation pad from the pressing roller to set a nip pressure lower than an ordinary nip pressure, and the driving unit rotates the pressing roller that rotates the fixing belt. Thereafter, the heater starts heating, and the separation mechanism moves the nip formation pad to contact the fixing belt at an ordinary nip pressure.

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：US09715197B2

公开(公告)日：2017-07-25

申请号：US15202878

申请日：2016-07-06

申请人： Takuya Seshita ,  Yuji Arai ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Motoyoshi Yamano

发明人： Takuya Seshita ,  Yuji Arai ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Motoyoshi Yamano

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/2039 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator, a heat source, a controller, a pressure rotator, and a nip formation pad. The controller controls the heat source such that a temperature of the fixing rotator is equal to a preset fixing temperature. The nip formation pad abuts the pressure rotator via the fixing rotator and forms a nip between the fixing rotator and the pressure rotator. When a print time of a previous job is longer than a prescribed time A and a next job is started within a prescribed time B after an end of the previous job, the controller corrects the preset fixing temperature during a time from a start of the next job to an entry of a print sheet into the nip and during a time from the entry of the print sheet into the nip to a lapse of a prescribed time C after the entry.

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.

公开(公告)号：US20170010569A1

公开(公告)日：2017-01-12

申请号：US15202878

申请日：2016-07-06

申请人： Takuya Seshita ,  Yuji Arai ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Motoyoshi Yamano

发明人： Takuya Seshita ,  Yuji Arai ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Motoyoshi Yamano

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/2039 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator, a heat source, a controller, a pressure rotator, and a nip formation pad. The controller controls the heat source such that a temperature of the fixing rotator is equal to a preset fixing temperature. The nip formation pad abuts the pressure rotator via the fixing rotator and forms a nip between the fixing rotator and the pressure rotator. When a print time of a previous job is longer than a prescribed time A and a next job is started within a prescribed time B after an end of the previous job, the controller corrects the preset fixing temperature during a time from a start of the next job to an entry of a print sheet into the nip and during a time from the entry of the print sheet into the nip to a lapse of a prescribed time C after the entry.

摘要翻译： 定影装置包括固定旋转器，热源，控制器，压力旋转器和压区形成垫。 控制器控制热源，使得定影旋转器的温度等于预定的定影温度。 压区形成垫通过固定旋转体与压力旋转体抵接，并在固定旋转体和压力旋转体之间形成辊隙。 当先前作业的打印时间长于规定时间A，并且在上次作业结束之后的规定时间B内开始下一作业时，控制器在下一个开始的时间内校正预设定影温度 作业到打印纸的进入到辊隙中，并且在从打印纸进入辊隙到经过预定时间C之后的时间内。