Patents by Inventor Kyohhei Okuno

Kyohhei Okuno 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 including cleaning web, image forming apparatus, and image forming method including standby mode cleaning
    Patent number: 10209651
    Abstract: A fixing device includes a pressure rotator to press against a fixing rotator to form a fixing nip therebetween, through which a recording medium is conveyed. A cleaning web cleans one of the fixing rotator and the pressure rotator. A web driver displaces the cleaning web to change a contact portion of the cleaning web, which contacts the one of the fixing rotator and the pressure rotator. A controller performs a temperature maintenance and rotation control to heat and rotate the fixing rotator at a predetermined time when the fixing device is in a standby mode in which the recording medium is not conveyed through the fixing nip. The controller controls the web driver at a predetermined time to perform a standby mode cleaning control to change the contact portion of the cleaning web according to an implementation status of the temperature maintenance and rotation control.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 19, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Tsukasa Satoh, Kyohhei Okuno
  • FIXING DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD
    Publication number: 20180095389
    Abstract: A fixing device includes a pressure rotator to press against a fixing rotator to form a fixing nip therebetween, through which a recording medium is conveyed. A cleaning web cleans one of the fixing rotator and the pressure rotator. A web driver displaces the cleaning web to change a contact portion of the cleaning web, which contacts the one of the fixing rotator and the pressure rotator. A controller performs a temperature maintenance and rotation control to heat and rotate the fixing rotator at a predetermined time when the fixing device is in a standby mode in which the recording medium is not conveyed through the fixing nip. The controller controls the web driver at a predetermined time to perform a standby mode cleaning control to change the contact portion of the cleaning web according to an implementation status of the temperature maintenance and rotation control.
    Type: Application
    Filed: September 8, 2017
    Publication date: April 5, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Tsukasa Satoh, Kyohhei Okuno