Patents by Inventor Shuichi Gofuki

Shuichi Gofuki 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).

  • PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
    Publication number: 20210011428
    Abstract: A process cartridge includes a photosensitive drum; a developing roller; a developer supplying roller, provided in contact with the developing roller; a driving force receiving portion provided at a shaft end of the supplying roller; a first driving force transmitting portion; a second driving force transmitting portion; flexible sheets provided adjacent to an engaging portion between the first portion and the second portion to intermittently contact the second portion with rotation of the second portion, wherein a rotational direction of the roller is opposite to that of the roller, and a peripheral speed of the roller is larger than that of the roller.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 14, 2021
    Inventors: Hideki Maeshima, Kuniaki Hirukawa, Shuichi Gofuki, Yoshihiro Mitsui
  • Process cartridge and image forming apparatus
    Patent number: 10838356
    Abstract: A process cartridge includes a photosensitive drum; a developing roller; a developer supplying roller, provided in contact with the developing roller; a driving force receiving portion provided at a shaft end of the supplying roller; a first driving force transmitting portion; a second driving force transmitting portion; flexible sheets provided adjacent to an engaging portion between the first portion and the second portion to intermittently contact the second portion with rotation of the second portion, wherein a rotational direction of the roller is opposite to that of the roller, and a peripheral speed of the roller is larger than that of the roller.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: November 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Maeshima, Kuniaki Hirukawa, Shuichi Gofuki, Yoshihiro Mitsui
  • PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
    Publication number: 20200096937
    Abstract: A process cartridge includes a photosensitive drum; a developing roller; a developer supplying roller, provided in contact with the developing roller; a driving force receiving portion provided at a shaft end of the supplying roller; a first driving force transmitting portion; a second driving force transmitting portion; flexible sheets provided adjacent to an engaging portion between the first portion and the second portion to intermittently contact the second portion with rotation of the second portion, wherein a rotational direction of the roller is opposite to that of the roller, and a peripheral speed of the roller is larger than that of the roller.
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Inventors: Hideki Maeshima, Kuniaki Hirukawa, Shuichi Gofuki, Yoshihiro Mitsui