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: 7787790
    Abstract: A fixing apparatus of the present invention includes a heating roller 2 that is a cylindrical member having a center axis, a pressurizing roller 3 that exerts pressure on the heating roller 2, and a temperature detecting element 6 that detects the temperature of the heating roller 2. The outer peripheral surface of the heating roller 2 is induction heated on the basis of the temperature information detected by the temperature detecting element 6. The fixing apparatus thus utilizes induction heating. The present invention is characterized in that the temperature detecting element 6 is placed in an area located vertically below the center axis of the heating member 2 and vertically below the outer peripheral surface of the heating member. The temperature detecting element 6 is thus provided at a position where it is unlikely to suffer thermal convection from the heating roller 2.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: August 31, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Yoshinori Tsueda, Satoshi Kinouchi, Osamu Takagi, Toshihiro Sone
  • Patent number: 7787789
    Abstract: A fixing device according to an embodiment of the present invention includes a microcomputer that exclusively performs temperature control for the fixing device. The microcomputer periodically calculates electric power that can be supplied to the fixing device. The microcomputer detects the temperature of the fixing device and the temperature in a printer unit and feedback-controls electric power supplied to the fixing device.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: August 31, 2010
    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
  • Patent number: 7778564
    Abstract: In a fixing device of an image forming apparatus of the present invention, inner surfaces of upper and lower frames for respectively supporting a heat roller and a pressure roller are formed as a mirror surface. Between the heat roller and an infrared temperature sensor, an infrared transmission filter for cutting infrared rays beyond a wave length zone equivalent to a heatable area of the heat roller is installed. Detection results of a surface temperature of the heat roller by the infrared temperature sensor are prevented from exceeding the error tolerance due to infrared rays radiated from other than the heat roller. Temperature control for the heat roller is improved and a fixed image of high image quality is obtained.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: August 17, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Toshihiro Sone, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda
  • Patent number: 7769335
    Abstract: A fixing apparatus according to the present invention ensures a nip width larger than a certain value by a heating roller which has a thin film metal conductive layer, and a foamed rubber layer which is bonded to the end part of the metal conductive layer, formed with a gap in a center part, and not bonded to the metal conductive layer.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: August 3, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Toshihiro Sone
  • Publication number: 20100171783
    Abstract: An image recording apparatus includes a carrying unit that carries a recording medium in a carrying direction. A recording head records on the recording medium carried by the carrying unit by ejecting ink. An application unit applies a treatment liquid to the recording medium carried by the carrying unit. An inclination correction unit is disposed on a downstream side in the carrying direction from the application unit and an upstream side in the carrying direction from the recording head and corrects an inclination of the recording medium carried by the carrying unit.
    Type: Application
    Filed: January 5, 2010
    Publication date: July 8, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Satoshi Kaiho, Satoshi Kinouchi, Nobuaki Takahashi
  • Patent number: 7751740
    Abstract: A fixing apparatus includes an endless heating member having a metallic conductive layer, and a pressure member pressed to the heating member to form a nip to hold and convey a medium to be fixed. The apparatus also includes an induction heating coil arranged on an outer periphery of the heating member to generate an induced current, and a position sensor to detect a front end of the medium conveyed. The apparatus further includes a controller for controlling so as to increase an output value of the induction heating coil.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: July 6, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Satoshi Kinouchi, Osamu Takagi, Yoshinori Tsueda, Toshihiro Sone
  • Publication number: 20100150625
    Abstract: According to an embodiment of the invention, a fixing apparatus includes, a first endless body configured to be heated by a heating mechanism and maintain temperature reached by the heating, a second endless body configured to fix a visualizing agent supported by a sheet medium on the sheet medium in cooperation with the first endless body, a heat equalizing member configured to be located in a predetermined position on an inner side of the first endless body and apply, to the first endless body, tension for supplying heat, and a heat accumulating member configured to have a large heat capacity compared with a heat capacity of the heat equalizing member and to be located in a predetermined position on the inner side of the first endless body and apply, to the first endless body, tension for supplying heat.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 17, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Toshihiro SONE, Kazuhiko KIKUCHI, Satoshi KINOUCHI
  • Publication number: 20100150596
    Abstract: According to an embodiment, a heating device having a plurality of heating members which heat the heating roller, a first thermoelectric converting section having a plurality of thermoelectric converting elements, each of which has a heat-absorbing surface and a cooling surface and generates electromotive force by difference in temperature between the heat-absorbing surface and the cooling surface, and formed along a curved surface of the heating roller, in which the heat-absorbing surface is disposed with a predetermined space from an outer circumferential surface of the heating roller, an auxiliary power supply charged with electric power generated by the first thermoelectric converting section, and a switching section which switches the apparatus between a first state in which electric power is supplied from utility power to the heating members and a second state in which electric power is supplied from the auxiliary power supply to the heating members, based on a predetermined signal.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 17, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Toshihiro Sone, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda
  • Publication number: 20100150597
    Abstract: A center coil and side coils alternately operate at least once while a heat belt passes positions corresponding to the center coil and the side coils. A controller controls the operation time of the center coil and the operation time of the side coils according to comparison of detected temperature of a first temperature sensor and detected temperature of a second temperature sensor.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 17, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Satoshi KINOUCHI, Kazuhiko KIKUCHI, Toshihiro SONE
  • Patent number: 7725067
    Abstract: A fixing apparatus according to the present invention includes a heat roller 2 which includes an elastic member 2b having an outer diameter which is different from another one in an axial direction, and a conductive layer 2c provided outside of the elastic member 2b, wherein a maximum outer diameter and a minimum outer diameter of the elastic member 2b has a difference therebetween ranging from 0.2 mm to 3.0 mm.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: May 25, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Yoshinori Tsueda, Satoshi Kinouchi, Osamu Takagi, Toshihiro Sone
  • Publication number: 20100124447
    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: Application
    Filed: November 17, 2009
    Publication date: May 20, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Toshihiro Sone, Kazuhiko Kikuchi, Satoshi Kinouchi
  • Publication number: 20100119268
    Abstract: A fixing apparatus an aspect of the present invention includes, a heating object which generates the heat by a magnetic flux produced from a coil which generates a predetermined magnetic flux by electromagnetic induction in accordance with a frequency of an input current, and a pressurization mechanism which can provide a predetermined pressure to the heating object, and a coil of the heating object is formed of a litz wire obtained by twisting the number of conductors having a small cross section which are not affected by the skin effect caused due to the frequency of the input current, the number of which allows passage of a quantity of current to be inputted.
    Type: Application
    Filed: January 19, 2010
    Publication date: May 13, 2010
    Inventors: Osamu TAKAGI, Satoshi KINOUCHI
  • Publication number: 20100104333
    Abstract: The present invention provides a technique that can contribute to the improvement of fixing performance while maintaining appropriate nip width. A heating roller includes: a core configured to rotate around a predetermined rotation axis; plural elastic layers laminated on the outer circumference of the core; and a conductive layer formed on the outer circumference of the plural elastic layers. The plural elastic layers have, in a rotation radius direction, larger specific heat in the elastic layer on the outer side than in the elastic layer on the inner side and have lower thermal conductivity in the elastic layer on the inner side than in the elastic layer on the outer side.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 29, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Yoshinori TSUEDA, Osamu TAKAGI, Satoshi KINOUCHI, Toshihiro SONE
  • Patent number: 7675010
    Abstract: A fixing apparatus an aspect of the present invention includes, a heating object which generates the heat by a magnetic flux produced from a coil which generates a predetermined magnetic flux by electromagnetic induction in accordance with a frequency of an input current, and a pressurization mechanism which can provide a predetermined pressure to the heating object, and a coil of the heating object is formed of a litz wire obtained by twisting the number of conductors having a small cross section which are not affected by the skin effect caused due to the frequency of the input current, the number of which allows passage of a quantity of current to be inputted.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: March 9, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi
  • Patent number: 7672632
    Abstract: A heat roller of a fixing apparatus according to an embodiment of the invention has a slidable metal belt on an outer side of an elastic roller. The width of the metal belt is made larger than that of the elastic roller. Flanges, each of which regulates a sliding movement of the metal belt by being in contact with an edge of the metal belt, are provided on both sides of a press roller opposite the metal belt.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: March 2, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Toshihiro Sone, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Tetsuo Kitamura, Hiroshi Nakayama, Yohei Doi, Kazuhiko Kikuchi, Masanori Takai, Toyoyasu Kusaka
  • Patent number: 7668498
    Abstract: A fixing apparatus according to the present invention ensures a nip width larger than a certain value by a heating roller which has a thin film metal conductive layer, and a foamed rubber layer which is bonded to the end part of the metal conductive layer, formed with a gap in a center part, and not bonded to the metal conductive layer.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: February 23, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Toshihiro Sone
  • Publication number: 20100034567
    Abstract: To provide a technique for reducing waste of thermal energy in a fixing device. The fixing device includes: a heating rotational unit configured to heat a sheet on which a toner image is formed; a pressing rotational unit configured to come into press contact with the heating rotational unit to form a nip between the heating rotational unit and the pressing rotational unit and nip and carry the sheet in cooperation with the heating rotational unit; a heating device configured to heat the heating rotational unit; and a heat accumulating unit configured to cover at least a range above at least one of the heating rotational unit and the pressing rotational unit.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 11, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Toshihiro SONE, Osamu TAKAGI, Satoshi KINOUCHI, Yoshinori TSUEDA, Kazuhiko KIKUCHI
  • Publication number: 20100034568
    Abstract: To provide a technique for preventing a temperature rise in a non-sheet passing areas in a fixing device. The fixing device includes: a heating rotational member that includes at least one roller and heats a toner transferred on a sheet; a pressing roller that nips and carries the sheet in cooperation with the heating rotational member; a heating device that heats the heating rotational member; and heat pipes arranged, on the inside of at least one of the roller of the heating rotational member and the pressing roller, in ranges on both the sides in an axial direction of the roller from positions closer to the center in the axial direction than both the ends of a minimum sheet passing range in the axial direction of the roller of the nipped and carried sheet to positions further on the outer sides in the axial direction than both the ends of a maximum sheet passing range.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 11, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Toshihiro SONE, Osamu TAKAGI, Satoshi KINOUCHI, Yoshinori TSUEDA
  • Patent number: 7660554
    Abstract: In an induction heat fixing device of the invention, a metal conductive layer of a heat roller is supported by a foamed rubber (sponge). A sheet paper is curled in a direction of separating from the heat roller by a nip shape between the heat roller and a press roller. The press roller is formed to be longer than the heat roller to such a degree that even if the heat roller laterally shifts, an edge of the press roller does not come in contact with the heat roller.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: February 9, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Toshihiro Sone
  • Publication number: 20100028038
    Abstract: A fixing device of this invention enables variable control of power to be supplied to a heat roller side or a press roller side in accordance with the temperature of the heat roller and the press roller while each mode is carried out. In a copy mode, the temperature of the heat roller and the press roller is finely controlled. In a copy standby mode, only the power required for maintaining a set temperature is supplied.
    Type: Application
    Filed: October 6, 2009
    Publication date: February 4, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Toshihiro Sone