Patents by Inventor Takaho Watanabe

Takaho Watanabe 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: 10656574
    Abstract: According to one embodiment, an image forming apparatus includes a fixing member, a pressurizing member, a movable member, and a controller. The fixing member heats a sheet. The pressurizing member has first heat capacity and faces the fixing member. The movable member is provided to be movable between a contact position to contact with the pressurizing member and a separation position to be separated from the pressurizing member, and has second heat capacity smaller than the first heat capacity. The controller is configured to move the movable member to one of the contact position and the separation position based on a change of a control temperature of the fixing member or the pressurizing member.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: May 19, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takaho Watanabe, Hiroshi Ishii
  • Patent number: 10209652
    Abstract: An image forming apparatus comprises a transfer section, a fixing section, and a controller. The transfer section includes a transfer rotating body for conveying a sheet at a first linear velocity, and transfers a toner image onto the sheet. The fixing section forms a nip sandwiching the sheet with a first rotating body and a second rotating body, and a heating section for heating the sheet onto which the toner image is transferred. The controller executes a sheet acceleration and deceleration control for setting a linear velocity of the first rotating body to a second linear velocity from the first linear velocity before the tip of the sheet reaches the nip, and decelerating the linear velocity of the first rotating body from the second linear velocity to the first linear velocity at the time the tip of the sheet reaches a predetermined range in a sheet conveyance path.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: February 19, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Kazuhiko Kikuchi, Sasuke Endo, Takaho Watanabe
  • Publication number: 20180210379
    Abstract: According to one embodiment, an image forming apparatus of an embodiment includes a sheet supply unit, a printer unit, a sheet transport unit, a fixing unit, a fixing roller driving unit, and a control unit. The control unit controls the fixing roller driving unit so as to decelerate a second linear velocity to a fourth transport velocity and to switch to a third transport velocity when a first control time elapses after the leading edge of a sheet starts to be transported from a registration position, if the sheet is transported at a first linear velocity before transfer. Alternatively, the control unit controls the fixing roller driving unit so as to decelerate the second linear velocity to the fourth transport velocity and to switch to the third transport velocity when a second control time that is shorter than the first control time elapses, if the sheet is accelerated before transfer.
    Type: Application
    Filed: March 15, 2017
    Publication date: July 26, 2018
    Inventors: Kazuhiko Kikuchi, Junichi Nakamura, Takaho Watanabe
  • Publication number: 20160077473
    Abstract: In accordance with one embodiment, an image forming apparatus comprises an image forming section configured to be capable of forming an image with erasable coloring agent; a storage section configured to include a first and a second cassettes capable of storing an image receiving medium; an erasing section configured to heat the image receiving medium on which an image is formed with the erasable coloring agent at a pre-set temperature to erase the image; and a conveyance section configured to convey the image receiving medium stacked in the first cassette through a first conveyance path which passes through the image forming section and the erasing section, and convey the image receiving medium the image on which is erased by the erasing section to the second cassette of the storage section through a second conveyance path.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 17, 2016
    Inventors: Tokihiko Ise, Satoshi Kinouchi, Takaho Watanabe, Ryota Saeki
  • Publication number: 20160077474
    Abstract: An image forming apparatus comprises a fixing device configured to fix an image formed by an image forming section on an image receiving medium. The fixing device includes a heating roller, an auxiliary roller arranged at an entering side of the image receiving medium, and a fixing belt which is stretched by a plurality of rollers including the auxiliary roller and cyclically rotates in a state of being contacted with part of the outer periphery of the heating roller; wherein the auxiliary roller is arranged at a position which is closer to the entering side of the image receiving medium than a fixing nip section between the heating roller and the fixing belt and is at a preset distance away from the fixing nip section. The image forming apparatus further comprises an inlet guide configured closer to the entering side of the image receiving medium than the auxiliary roller.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 17, 2016
    Inventors: Takaho Watanabe, Satoshi Kinouchi, Tokihiko Ise, Ryota Saeki
  • Patent number: 9244396
    Abstract: In accordance with one embodiment, an image forming apparatus comprises a transfer device configured to transfer an image onto a conveyed recording medium (sheet); a fixer configured to heat, press and convey the sheet to fix the transferred image on the sheet; a sensor configured to detect the bending amount of the sheet between the transfer device and the fixer; and a control section configured to control at least one of the transfer device and the fixer so that the recording medium between the transfer device and the fixer is conveyed in a bent state and the bending amount of the sheet is reduced if the bending amount of the sheet exceeds a preset one according to the detection result of the sensor.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: January 26, 2016
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Satoshi Kinouchi, Takaho Watanabe, Ryota Saeki, Tokihiko Ise
  • Publication number: 20160018768
    Abstract: In accordance with one embodiment, an image forming apparatus comprises a transfer device configured to transfer an image onto a conveyed recording medium (sheet); a fixer configured to heat, press and convey the sheet to fix the transferred image on the sheet; a sensor configured to detect the bending amount of the sheet between the transfer device and the fixer; and a control section configured to control at least one of the transfer device and the fixer so that the recording medium between the transfer device and the fixer is conveyed in a bent state and the bending amount of the sheet is reduced if the bending amount of the sheet exceeds a preset one according to the detection result of the sensor.
    Type: Application
    Filed: July 15, 2014
    Publication date: January 21, 2016
    Inventors: Satoshi Kinouchi, Takaho Watanabe, Ryota Saeki, Tokihiko Ise
  • Publication number: 20150378289
    Abstract: In accordance with one embodiment, an image forming apparatus comprising a printer section configured to include a first image forming section which forms a monochrome image with inerasable coloring agent and a plurality of color image forming sections at least one of which forms a color image with erasable coloring agent; and a control section configured to control the printer section so that the printer section operates in a first mode of forming a monochrome image through the first image forming section, a second mode of forming an erasable image with the erasable coloring agent, and a third mode of forming an image through the first image forming section and the plurality of color image forming sections.
    Type: Application
    Filed: June 27, 2014
    Publication date: December 31, 2015
    Inventors: Satoshi Kinouchi, Ryota Saeki, Takaho Watanabe, Tokihiko Ise
  • Patent number: 9207604
    Abstract: In accordance with one embodiment, an image forming apparatus comprises a fixing section, a pressing section, a plurality of nips, a plurality of conveyance paths, a switch section and a control section. The fixing section is heated through a heat source. The pressing section is pressed against the fixing section to form a nip. The plurality of nips are formed by at least one fixing section and at least one pressing section. The plurality of conveyance paths pass through at least one of the plurality of nips. The switch section switches the plurality of conveyance paths. The control section controls the switch section.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: December 8, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Tokihiko Ise, Satoshi Kinouchi, Takaho Watanabe, Ryota Saeki
  • Patent number: 9158220
    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: Grant
    Filed: February 24, 2014
    Date of Patent: October 13, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Satoshi Kinouchi, Ryota Saeki, Takaho Watanabe
  • Patent number: 8953996
    Abstract: A fixing apparatus according to an embodiment includes: a first roller; a second roller that forms a nip between the second roller and the first roller and presses a sheet passing through the nip against the first roller; a heater that heats at least one of the first roller and the second roller, a heating range of the heater being greater than a maximum printing width of a predetermined maximum sheet width, and a heat-uniformizing member that distributes heat of the heater along a longitudinal direction thereof, an effective length of the heat-uniformizing member in the longitudinal direction being the same as, or greater than, the predetermined maximum sheet width.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: February 10, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Shinji Maruyama, Takaho Watanabe, Kazuhiko Kikuchi
  • 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: 20140126939
    Abstract: A fixing apparatus according to an embodiment includes: a first roller; a second roller that forms a nip between the second roller and the first roller and presses a sheet passing through the nip against the first roller; a heater that heats at least one of the first roller and the second roller, a heating range of the heater being greater than a maximum printing width of a predetermined maximum sheet width, and a heat-uniformizing member that distributes heat of the heater along a longitudinal direction thereof, an effective length of the heat-uniformizing member in the longitudinal direction being the same as, or greater than, the predetermined maximum sheet width.
    Type: Application
    Filed: January 9, 2014
    Publication date: May 8, 2014
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: SHINJI MARUYAMA, Takaho Watanabe, Kazuhiko Kikuchi
  • Patent number: 8644746
    Abstract: A fixing apparatus according to an embodiment includes: a first roller; a second roller that forms a nip between the second roller and the first roller and pressurizes a sheet passing through the nip against the first roller; a third roller that is disposed in parallel with the first and second rollers; a fixing belt that is stretched over the first and third rollers; a heater that uniformly heats the fixing belt in a direction of a width of the fixing belt; and a heat-uniformizing member that is a shaft-shaped heat-uniformizing member embedded in the third roller. An effective length in a longitudinal axial direction of the heat-uniformizing member is set to be the same or greater than a width of a predetermined maximum sheet so as to uniformly distribute heat of the fixing belt which is in contact with the third roller in the longitudinal axial direction.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: February 4, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Shinji Maruyama, Takaho Watanabe, Kazuhiko Kikuchi
  • Patent number: 8513302
    Abstract: The invention provides uses and methods for reducing nephropathy in persons with diabetes mellitus (particularly Type 2 diabetes), in persons with metabolic syndrome, in persons with triglyceride levels over 215 mg/dL, and in persons with a cholesterol level over 200 mg/dL, by administering an inhibitor of soluble epoxide hydrolase (“sEH”). Optionally, a cis-epoxyeicosantrienoic acid (“EET”) can be administered with the sEH inhibitor. The invention further provides for using EETs in conjunction with one or more sEH inhibitors to reduce hypertension, and for compositions of EETs coated with a material insoluble in an acid of pH 3 but soluble in a solution with a pH of 7.4 or higher.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: August 20, 2013
    Assignee: The Regents of the University of California
    Inventors: Bruce D. Hammock, Takaho Watanabe, Seung-Jin Ma, Susan E. Bennett, Judith S. Stern, Christophe Morisseau, In-Hae Kim
  • Patent number: 8476043
    Abstract: Inhibitors of the soluble epoxide hydrolase (sEH) are provided that incorporate multiple pharmacophores and are useful in the treatment of diseases.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: July 2, 2013
    Assignee: The Regents of the University of California
    Inventors: Bruce D. Hammock, In-Hae Kim, Christophe Morisseau, Takaho Watanabe, John W. Newman
  • Patent number: 8455652
    Abstract: Inhibitors of the soluble epoxide hydrolase (sEH) are provided that incorporate multiple pharmacophores and are useful in the treatment of diseases.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: June 4, 2013
    Assignee: The United States of America as Represented by the Secretary of the Department of Health and Human Services
    Inventors: Bruce D. Hammock, In-Hae Kim, Christophe Morisseau, Takaho Watanabe, John W. Newman
  • Publication number: 20110269831
    Abstract: The invention provides uses and methods for reducing nephropathy in persons with diabetes mellitus (particularly Type 2 diabetes), in persons with metabolic syndrome, in persons with triglyceride levels over 215 mg/dL, and in persons with a cholesterol level over 200 mg/dL, by administering an inhibitor of soluble epoxide hydrolase (“sEH”). Optionally, a cis-epoxyeicosantrienoic acid (“EET”) can be administered with the sEH inhibitor. The invention further provides for using EETs in conjunction with one or more sEH inhibitors to reduce hypertension, and for compositions of EETs coated with a material insoluble in an acid of pH 3 but soluble in a solution with a pH of 7.4 or higher.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 3, 2011
    Applicant: The Regents of the University of California
    Inventors: Bruce D. Hammock, Takaho Watanabe, Seung-Jin Ma, Susan E. Bennett, Judith S. Stern, Christophe Morisseau, In-Hae Kim
  • Publication number: 20110222933
    Abstract: A fixing apparatus according to an embodiment includes: a first roller; a second roller that forms a nip between the second roller and the first roller and pressurizes a sheet passing through the nip against the first roller; a third roller that is disposed in parallel with the first and second rollers; a fixing belt that is stretched over the first and third rollers; a heater that uniformly heats the fixing belt in a direction of a width of the fixing belt; and a heat-uniformizing member that is a shaft-shaped heat-uniformizing member embedded in the third roller. An effective length in a longitudinal axial direction of the heat-uniformizing member is set to be the same or greater than a width of a predetermined maximum sheet so as to uniformly distribute heat of the fixing belt which is in contact with the third roller in the longitudinal axial direction.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 15, 2011
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Shinji MARUYAMA, Takaho Watanabe, Kazuhiko Kikuchi
  • Publication number: 20110069984
    Abstract: According to one embodiment, a fixing device includes a fixing roller having an elastic layer, a fixing belt wound around the fixing roller, a satellite roller to set up the fixing belt between the fixing roller and the satellite roller, a pressing roller to nip hold the fixing belt between the fixing roller and the pressing roller, a separator to separate a sheet at a position separate from the fixing belt, a pressure changing mechanism to change a nip pressure between the fixing roller and the pressing roller, and a driving device to rotate the fixing belt in a first direction when the nip pressure is a first nip pressure and to rotate the fixing belt in a second direction which is reverse to the first direction when the nip pressure is a second nip pressure which is lower than the first nip pressure.
    Type: Application
    Filed: August 20, 2010
    Publication date: March 24, 2011
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Takaho WATANABE