Patents by Inventor Satoshi Kinouchi

Satoshi Kinouchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8843045
    Abstract: A fuser is equipped with a heating roller, fixing belt, pressure roller, pad, and spring. The heating roller is located on the downstream side of the fixing belt with respect to the sheet conveyance direction, and as the heating roller rotates, contacts the sheet toner side of a sheet, heating the sheet. The fixing belt contacts the side of the sheet opposite to the toner side of the sheet. The pressure roller comes into contact with the heating roller via the fixing belt. The pad is of a softer material than the fixing belt, and, as the pad exerts a force on the heating roller by pressing on the fixing belt, a downstream side of the pad with respect to the sheet conveyance direction is inclined away from the pressure roller. Springs urge the pad toward the pressure roller and the heating roller.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: September 23, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Hiroyuki Ishikawa, Satoshi Kinouchi, Ryota Saeki, Kazutoshi Takahashi, Shoko Shimmura, Toshihiro Sone
  • Publication number: 20140240724
    Abstract: In accordance with one embodiment, an image forming apparatus comprises an image forming section configured to form a toner image on a printing recording medium, a fixing section configured to heat the printing recording medium printed with the toner image at a fixing temperature, a temperature control section configured to control the fixing section to a temperature above a color erasing temperature, a conveyance section configured to convey the printing recording medium or a color erasing recording medium to the fixing section, and a speed control section configured to control, according to a setting temperature of the fixing section, a speed ratio of a traveling speed of the fixing section to a conveyance speed of the conveyance section.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Satoshi Kinouchi, Ryota Saeki, Takaho Watanabe
  • Publication number: 20140050498
    Abstract: A fixing device includes a fixing belt including a metal layer, a pressing member to form a nip between the pressing member and the fixing belt, an induction current generating coil that faces an outer periphery of the fixing belt, and heats the fixing belt located at a nip position through a hollow inside of the fixing belt, and a coil controller supplies a high frequency to the induction current generating coil.
    Type: Application
    Filed: October 30, 2013
    Publication date: February 20, 2014
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Satoshi KINOUCHI, Toshihiro SONE, Ryota SAEKI
  • Patent number: 8600254
    Abstract: A fixing device includes a fixing belt including a metal layer, a pressing member to form a nip between the pressing member and the fixing belt, an induction current generating coil that faces an outer periphery of the fixing belt, and heats the fixing belt located at a nip position through a hollow inside of the fixing belt, and a coil controller supplies a high frequency to the induction current generating coil.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: December 3, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Satoshi Kinouchi, Toshihiro Sone, Ryota Saeki
  • Patent number: 8521065
    Abstract: A fuser includes: a rotational member configured to rotate; a press member configured to press the rotational member; an induction-current generator configured to generate induction current in the rotational member; and a separator configured to separate a leading end of a recording medium that passes through a nip from the rotational member, when a distal end is in a separating position, and move to an open position.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: August 27, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Kazuhiko Kikuchi, Shuji Yokoyama, Hiroshi Nakayama, Hiroaki Yamauchi, Satoshi Kinouchi
  • Publication number: 20130164008
    Abstract: According to one embodiment, a developing device in which a decolorizable developing agent containing encapsulated colorant microparticles each including a core containing a color developable compound, a color developer, and a decolorizing agent is accommodated and a developing device in which a transparent developing agent containing a binder resin is accommodated are provided, respectively, and an image is formed by transferring a transparent developing agent image onto a region capable of covering a decolorizable developing agent image, followed by fusing the image. Further, in the second image formation and thereafter, the using amount of the transparent developing agent is decreased as compared with that in the first image formation.
    Type: Application
    Filed: February 28, 2012
    Publication date: June 27, 2013
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Shoko Shimmura, Satoshi Kinouchi, Kazutoshi Takahashi, Toshihiro Sone, Ryota Saeki
  • Publication number: 20130051877
    Abstract: Certain embodiments provide a fuser including a cylindrical fixing belt, a heating member, an auxiliary heat generating member, a plurality of heat pipes, a pressurizing pad, and a pressurizing roller. The heating member heats the fixing belt. The auxiliary heat generating member auxiliary heats the fixing belt. The plural heat pipes are sparsely arranged in the center in the longitudinal direction of the auxiliary heat generating member and more densely arranged at the ends in the longitudinal direction of the auxiliary heat generating member than in the center. The pressurizing pad is arranged on the inside of the fixing belt. The pressurizing roller is arranged in contact with the outer circumference of the fixing belt. The pressurizing roller presses the fixing belt against the pressurizing pad.
    Type: Application
    Filed: August 21, 2012
    Publication date: February 28, 2013
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Toshihiro SONE, Tadashi Noguchi, Kazuhiko Kikuchi, Satoshi Kinouchi, Masahiro Doi, Shuji Yokoyama
  • Publication number: 20130051878
    Abstract: A fuser is equipped with a heating roller, fixing belt, pressure roller, pad, and spring. The heating roller is located on the downstream side of the fixing belt with respect to the sheet conveyance direction, and as the heating roller rotates, contacts the sheet toner side of a sheet, heating the sheet. The fixing belt contacts the side of the sheet opposite to the toner side of the sheet. The pressure roller comes into contact with the heating roller via the fixing belt. The pad is of a softer material than the fixing belt, and, as the pad exerts a force on the heating roller by pressing on the fixing belt, a downstream side of the pad with respect to the sheet conveyance direction is inclined away from the pressure roller. Springs urge the pad toward the pressure roller and the heating roller.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 28, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroyuki ISHIKAWA, Satoshi Kinouchi, Ryota Saeki, Kazutoshi Takahashi, Shoko Shimmura, Toshihiro Sone
  • Publication number: 20130004219
    Abstract: According to one embodiment, a fuser includes a heat roller, an endless belt, a first press roller and a second press roller. The heat roller rotates and contacts a toner surface side of a sheet, and heats the sheet. The endless belt contacts a part of an outer peripheral surface of the heat roller. The first press roller contacts a part of an inner peripheral surface of the endless belt, and is provided at an insertion part of the sheet in a nip portion where the heat roller contacts the endless belt. The second press roller contacts a part of the inner peripheral surface of the endless belt, is provided at an exit part of the sheet in the nip portion, and has a lower rotational resistance than the first press roller.
    Type: Application
    Filed: June 20, 2012
    Publication date: January 3, 2013
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Kazutoshi TAKAHASHI, Satoshi KINOUCHI, Ryota SAEKI, Shoko SHIMMURA, Toshihiro SONE
  • Publication number: 20130004218
    Abstract: Certain embodiments provide a fuser including a cylindrical fixing belt, a heating unit configured to heat the fixing belt, a pressurized section, a first nip forming section, a second nip forming section, and a moving mechanism. The pressurized section is arranged in contact with the fixing belt. The first nip forming section is fixed in a position where the first nip forming section presses the fixing belt against the pressurized section. The second nip forming section is configured to be movable between a position where the second nip forming section can press the fixing belt against the pressurized section and a position where the second nip forming section is separated from the fixing belt. The moving mechanism moves the second nip forming section.
    Type: Application
    Filed: June 7, 2012
    Publication date: January 3, 2013
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Yoshinori TSUEDA, Satoshi KINOUCHI, Ryota SAEKI, Toshihiro SONE
  • Publication number: 20120308278
    Abstract: According to one embodiment, a fuser includes a fixing belt including a conductive layer, an induction-current generating section to electromagnetically induction-heat the conductive layer, an opposed section to form a nip in cooperation with the fixing belt, an auxiliary heat generating section electromagnetically induction-heated by the induction-current generating section, and a moving section to move the auxiliary heat generating section with respect to the fixing belt.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 6, 2012
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Kazuhiko KIKUCHI, Masahiro Doi, Toshihiro Sone, Shuji Yokoyama, Tadashi Noguchi, Satoshi Kinouchi, Ryota Saeki, Shigeru Fujiwara, Shoko Shimmura, Kazutoshi Takahashi, Takafumi Amano
  • Publication number: 20120183337
    Abstract: According to one embodiment, a fuser includes a heating roller, an endless belt, and a pressing roller. The heating roller rotates and comes into contact with a toner surface side of a sheet to heat the sheet. The endless belt has hardness lower than the hardness of the heating roller. The pressing roller is an only rotating body provided in a space formed by the endless belt and having an outer diameter smaller than the inner diameter of the endless belt. The pressing roller has hardness lower than the hardness of the heating roller and presses the heating roller via a part of the endless belt.
    Type: Application
    Filed: January 16, 2012
    Publication date: July 19, 2012
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Kazutoshi Takahashi, Satoshi Kinouchi, Shigeru Fujiwara, Ryota Saeki, Shoko Shimmura, Toshihiro Sone, Takafumi Amano
  • Patent number: 8218991
    Abstract: A fixing device according to an embodiment of the present invention heats a metal conductive layer of a heat roller using an induction current generating coil. In order to supplement a heat capacity of the heat roller, a press roller having a large heat capacity is heated by a halogen lamp. During a start of activation of an image forming apparatus, when a printer control circuit is started, the supply of electric power to the halogen lamp is started before warming-up is started.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: July 10, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Hiroshi Nakayama, Yohei Doi, Tetsuo Kitamura, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Kazuhiko Kikuchi, Masanori Takai, Toyoyasu Kusaka, Toshihiro Sone
  • Publication number: 20120141175
    Abstract: An image forming apparatus according to an embodiment includes: an image erasing section including a first member which has an elastic layer and heats a recording medium having a thermally decolorizable toner image on the toner image side and a second member which erases the toner image by allowing the recording medium in cooperation with the first member; an image forming section which transfers a thermally decolorizable toner image onto the recording medium on which the toner image is erased to form an unfixed toner image; and an image fixing section including a third member which does not have an elastic layer and heats the recording medium on the unfixed toner image side and a fourth member which fixes the unfixed toner image by allowing the recording medium in cooperation with the third member.
    Type: Application
    Filed: November 8, 2011
    Publication date: June 7, 2012
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Shigeru Fujiwara, Satoshi Kinouchi, Ryota Saeki, Shoko Shimmura, Kazutoshi Takahashi, Toshihiro Sone, Takafumi Amano
  • Patent number: 8155573
    Abstract: According to an embodiment of the invention, a heat uniforming member, which has an outer diameter smaller than an inner diameter of a hollow member and in which thermal deformation generated by thermal expansion remains, is set in the inside of the hollow member having a center axis, support members are set to both ends of the hollow member to enable supporting of ends of the heat uniforming member, and an endless body having a uniform thermal distribution is formed by heating the hollow member, the heat uniforming member and the support member at a specified temperature for a specific time and causing the heat uniforming member to adhere closely to an inner wall of the hollow member.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: April 10, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Toshihiro Sone, Kazuhiko Kikuchi, Satoshi Kinouchi
  • Publication number: 20120082484
    Abstract: According to one embodiment, there are provided a developing section storing a color erasable developing agent that includes capsule colorant particles with a core in which a color developable compound, a color developing agent, and a color erasing agent are contained, and a developing section storing a binder resin-containing transparent developing agent. A transparent developing agent image is transferred to a region capable of covering a color erasable developing agent image and the resulting image is fixed.
    Type: Application
    Filed: October 3, 2011
    Publication date: April 5, 2012
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Shoko Shimmura, Satoshi Kinouchi, Shigeru Fujiwara, Ryota Saeki, Kazutoshi Takahashi, Toshihiro Sone, Takafumi Amano
  • Patent number: 8099007
    Abstract: In a heat roller of a fixing apparatus according to an embodiment of the present invention, a sleeve is slidable with respect to a supporting roller. Flanges that regulate the sleeve have smooth surfaces, are arranged at gaps apart from a foamed rubber layer of the supporting roller, and freely rotate with respect to the supporting roller. Edges at both ends of the foamed rubber layer of the supporting roller are formed in an R shape and set shorter than the length of a body of the press roller. The sleeve has markings for detecting a state of the heat roller.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: January 17, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Yoshinori Tsueda, Osamu Takagi, Satoshi Kinouchi, Tetsuo Kitamura, Hiroshi Nakayama, Yohei Doi, Kazuhiko Kikuchi, Masanori Takai, Toyoyasu Kusaka, Toshihiro Sone
  • Patent number: 8078073
    Abstract: In a fixing apparatus of an embodiment of the invention, a heat roller forwardly and reversely rotated by a drive motor capable of forwardly and reversely rotating is heated by an induction heating coil also when it is reversely rotated. Further, the roller control temperature of the heat roller by a control system is adjusted according to a time of forward rotation of the heat roller and a time of reverse rotation, or a time when the heat roller and a press roller are separated from each other and a time when they are in contact with each other. Besides, after a specified time has passed since an instruction of reverse rotation or forward rotation by a drive signal, output of the induction heating coil is tuned on.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: December 13, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Satoshi Kinouchi, Osamu Takagi, Yoshinori Tsueda, Tetsuo Kitamura, Hiroshi Nakayama, Yohei Doi, Kazuhiko Kikuchi, Masanori Takai, Toyoyasu Kusaka, Toshihiro Sone
  • Publication number: 20110287358
    Abstract: A fixing device includes a fixing belt including a metal layer, a pressing member to form a nip between the pressing member and the fixing belt, an induction current generating coil that faces an outer periphery of the fixing belt, and heats the fixing belt located at a nip position through a hollow inside of the fixing belt, and a coil controller supplies a high frequency to the induction current generating coil.
    Type: Application
    Filed: May 10, 2011
    Publication date: November 24, 2011
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Satoshi Kinouchi, Toshihiro Sone, Ryota Saeki
  • Publication number: 20110286028
    Abstract: According to one embodiment, an image forming apparatus includes a printer, a wireless device, an authentication information reader, an authentication device, and a processor. The printer forms an image on an image forming medium. The wireless device receives signals sent from an external device. The authentication information reader reads authentication information from a user operating the image forming apparatus. The authentication device authenticates the user by the authentication information read by the authentication information reader. If the wireless device receives signals sent from the external device, the processor starts warming up of the image forming unit, also, if the authentication device succeeds in user authentication, the processor causes the printer to form an image on the image forming medium in response to the user's request.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 24, 2011
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Satoshi Kinouchi, Toshihiro Sone, Ryota Saeki