Patents by Inventor Kohei Okuma

Kohei Okuma 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).

  • Fixing device and image forming apparatus provided therewith
    Patent number: 9075361
    Abstract: A fixing device includes: a heat source, a heating member, a pressure member, a heat absorption unit, a holding member, and an end part supporting member. The heat source generates infrared rays. The heat absorption unit is formed on an inner circumferential surface of the heating member, absorbs radiation heat of the heat source, and opposes an outer circumferential part of the holding member with a gap. The holding member has a hollow and cylindrical shape, and arranged between the heat source and the inner circumferential surface of the heat member, permits transmission of infrared rays and has heat resistance. The end part supporting member supports the holding member at both axial end parts of the heating member. The outer circumferential part of the holding member, the inner circumferential surface of the heating member, and the end part supporting member form a sealing space sealing the heat absorption unit.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: July 7, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Kohei Okuma, Keiichi Tanida, Satoshi Ishii
  • FIXING DEVICE AND IMAGE FORMING APPARATUS PROVIDED THEREWITH
    Publication number: 20140294469
    Abstract: A fixing device includes: a heat source, a heating member, a pressure member, a heat absorption unit, a holding member, and an end part supporting member. The heat source generates infrared rays. The heat absorption unit is formed on an inner circumferential surface of the heating member, absorbs radiation heat of the heat source, and opposes an outer circumferential part of the holding member with a gap. The holding member has a hollow and cylindrical shape, and arranged between the heat source and the inner circumferential surface of the heat member, permits transmission of infrared rays therethrough, and has heat resistance. The end part supporting member supports the holding member at both axial end parts of the heating member. The outer circumferential part of the holding member, the inner circumferential surface of the heating member, and the end part supporting member form a sealing space sealing the heat absorption unit.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Kohei Okuma, Keiichi Tanida, Satoshi Ishii