Patents by Inventor Shigeaki GOTOH

Shigeaki GOTOH 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: 10895835
    Abstract: A fixing device includes a fixing rotator, a hollow pressure rotator, a heater, a holder, and a bearing. The pressure rotator is configured to contact the fixing rotator. The heater is disposed inside the pressure rotator. The holder is configured to hold the pressure rotator and the heater. The bearing is configured to rotatably support the pressure rotator. The holder includes a curved face contact portion having a curved face conforming to an outer circumferential surface of the bearing to contact the bearing. The bearing includes a flange. The flange is configured to divide the bearing into an inboard area and an outboard area in an axial direction of the pressure rotator. The inboard area and the outboard area are asymmetrical.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: January 19, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Atsushi Ashikagaya, Satoshi Takahashi, Takanori Sakurai, Shigeaki Gotoh
  • Publication number: 20200356034
    Abstract: A fixing device includes a fixing rotator, a hollow pressure rotator, a heater, a holder, and a bearing. The pressure rotator is configured to contact the fixing rotator. The heater is disposed inside the pressure rotator. The holder is configured to hold the pressure rotator and the heater. The bearing is configured to rotatably support the pressure rotator. The holder includes a curved face contact portion having a curved face conforming to an outer circumferential surface of the bearing to contact the bearing. The bearing includes a flange. The flange is configured to divide the bearing into an inboard area and an outboard area in an axial direction of the pressure rotator. The inboard area and the outboard area are asymmetrical.
    Type: Application
    Filed: April 23, 2020
    Publication date: November 12, 2020
    Inventors: Atsushi ASHIKAGAYA, Satoshi TAKAHASHI, Takanori SAKURAI, Shigeaki GOTOH