Patents by Inventor Atsushi YAMAZOE

Atsushi YAMAZOE 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: 11650524
    Abstract: A fixing device includes a fixing rotating member, a heater, a fixing pad, a pressurizing member, a lubricant, and a surface layer. The fixing rotating member is configured to fix a toner image on a recording medium and is heated by the heater. The fixing pad is positioned on an inner circumferential side of the fixing rotating member, and presses the fixing rotating member from the inner circumferential side. The pressurizing member faces an outer circumferential surface of the fixing rotating member, and forms a nip for fixing between the pressurizing member and the fixing rotating member. The lubricant is applied to the fixing rotating member. The surface layer is disposed in a vicinity of an end portion of a pressurizing surface of the fixing pad and returns the lubricant to a longitudinal central side of the pressurizing surface.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: May 16, 2023
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Atsushi Yamazoe
  • Publication number: 20210294248
    Abstract: A fixing device includes a fixing rotating member, a heater, a fixing pad, a pressurizing member, a lubricant, and a surface layer. The fixing rotating member is configured to fix a toner image on a recording medium and is heated by the heater. The fixing pad is positioned on an inner circumferential side of the fixing rotating member, and presses the fixing rotating member from the inner circumferential side. The pressurizing member faces an outer circumferential surface of the fixing rotating member, and forms a nip for fixing between the pressurizing member and the fixing rotating member. The lubricant is applied to the fixing rotating member. The surface layer is disposed in a vicinity of an end portion of a pressurizing surface of the fixing pad and returns the lubricant to a longitudinal central side of the pressurizing surface.
    Type: Application
    Filed: June 8, 2021
    Publication date: September 23, 2021
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Atsushi YAMAZOE
  • Patent number: 11054768
    Abstract: A fixing device includes a fixing rotating member, a heater, a fixing pad, a pressurizing member, a lubricant, and a surface layer. The fixing rotating member is configured to fix a toner image on a recording medium and is heated by the heater. The fixing pad is positioned on an inner circumferential side of the fixing rotating member, and presses the fixing rotating member from the inner circumferential side. The pressurizing member faces an outer circumferential surface of the fixing rotating member, and forms a nip for fixing between the pressurizing member and the fixing rotating member. The lubricant is applied to the fixing rotating member. The surface layer is disposed in a vicinity of an end portion of a pressurizing surface of the fixing pad and returns the lubricant to a longitudinal central side of the pressurizing surface.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: July 6, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Atsushi Yamazoe
  • Publication number: 20200341413
    Abstract: A fixing device includes a fixing rotating member, a heater, a fixing pad, a pressurizing member, a lubricant, and a surface layer. The fixing rotating member is configured to fix a toner image on a recording medium and is heated by the heater. The fixing pad is positioned on an inner circumferential side of the fixing rotating member, and presses the fixing rotating member from the inner circumferential side. The pressurizing member faces an outer circumferential surface of the fixing rotating member, and forms a nip for fixing between the pressurizing member and the fixing rotating member. The lubricant is applied to the fixing rotating member. The surface layer is disposed in a vicinity of an end portion of a pressurizing surface of the fixing pad and returns the lubricant to a longitudinal central side of the pressurizing surface.
    Type: Application
    Filed: July 9, 2020
    Publication date: October 29, 2020
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Atsushi YAMAZOE
  • Patent number: 10732548
    Abstract: A fixing device includes a fixing rotating member, a heater, a fixing pad, a pressurizing member, a lubricant, and a surface layer. The fixing rotating member is configured to fix a toner image on a recording medium and is heated by the heater. The fixing pad is positioned on an inner circumferential side of the fixing rotating member, and presses the fixing rotating member from the inner circumferential side. The pressurizing member faces an outer circumferential surface of the fixing rotating member, and forms a nip for fixing between the pressurizing member and the fixing rotating member. The lubricant is applied to the fixing rotating member. The surface layer is disposed in a vicinity of an end portion of a pressurizing surface of the fixing pad and returns the lubricant to a longitudinal central side of the pressurizing surface.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: August 4, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Atsushi Yamazoe
  • Publication number: 20200133175
    Abstract: A fixing device includes a fixing rotating member, a heater, a fixing pad, a pressurizing member, a lubricant, and a surface layer. The fixing rotating member is configured to fix a toner image on a recording medium and is heated by the heater. The fixing pad is positioned on an inner circumferential side of the fixing rotating member, and presses the fixing rotating member from the inner circumferential side. The pressurizing member faces an outer circumferential surface of the fixing rotating member, and forms a nip for fixing between the pressurizing member and the fixing rotating member. The lubricant is applied to the fixing rotating member. The surface layer is disposed in a vicinity of an end portion of a pressurizing surface of the fixing pad and returns the lubricant to a longitudinal central side of the pressurizing surface.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Atsushi YAMAZOE
  • Publication number: 20180210378
    Abstract: A peeling guide of an embodiment includes a peeling claw that comes into contact with a rotating body conveying a recording medium and separates the recording medium from the rotating body. The peeling claw including a lubricant application portion that is in contact with the rotating body and to which a lubricant is applied.
    Type: Application
    Filed: January 26, 2017
    Publication date: July 26, 2018
    Inventors: Hiroyuki KUNUGI, Atsushi YAMAZOE, Junichi NAKAMURA
  • Publication number: 20170343934
    Abstract: An image forming apparatus, comprising a conveyance path configured to convey an image receiving medium; a fixing device configured to fix an image formed on the image receiving medium; a first roller arranged at the downstream side of a conveyance direction of the image receiving medium with respect to the fixing device, the first roller comprising an axis; a second roller configured to face the first roller and an end thereof of which protrudes towards a central part of the conveyance path with respect to an end of the first roller at the central part of the conveyance path in a first direction substantially parallel to the axis; and a protrusion arranged at the second roller side to protrude towards the first roller side from the second roller side and a protruding amount of which is greater than that of the second roller.
    Type: Application
    Filed: February 22, 2017
    Publication date: November 30, 2017
    Inventor: Atsushi Yamazoe
  • Publication number: 20120099908
    Abstract: The sheet guide device according to the embodiments includes, an image carrier; a transfer body which faces the image carrier; and a pre-transfer guide which guides a recording medium to a facing area from under the facing area of the image carrier and the transfer body, and an end thereof on the facing area side is inclined with respect to a center line of the facing area.
    Type: Application
    Filed: September 1, 2011
    Publication date: April 26, 2012
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventor: Atsushi YAMAZOE
  • Publication number: 20100310292
    Abstract: According to one embodiment, a method for forming an image including, making an image on an image holing member, pressing a nip between the image holding member and a pressure applying member, and controlling the pressure applying to the nip with first pressure before a leading edge of a sheet enters to the nip and second pressure before a leading edge of a sheet thicker than the first sheet enters to the nip.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 9, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Kimiaki FURUKAWA, Susumu KOIZUMI, Atsushi YAMAZOE