Patents by Inventor Fuyuki Sugihara

Fuyuki Sugihara 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).

  • Developing apparatus, process cartridge and unit
    Patent number: 9632451
    Abstract: A developing device includes first and second frames; a developer carrying member; an end portion seal, provided in the first frame, for sealing between an end portion and the first frame to prevent leakage; a sheet, provided in the second frame in contact with the developer carrying member along the rotation axial direction of the developer carrying member; a filler filling a space defined by the first and second frames, the end portion seal and the sheet at a connecting portion where the end portion seal and the sheet contact each other; and a projected portion provided in the first frame and projected into the space, the projected portion is spaced from the second frame, the end portion seal in the rotation axial direction.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: April 25, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Hayashi, Yosuke Kashiide, Masaaki Sato, Fuyuki Sugihara
  • DEVELOPING APPARATUS, PROCESS CARTRIDGE AND UNIT
    Publication number: 20140072327
    Abstract: A developing device includes first and second frames; a developer carrying member; an end portion seal, provided in the first frame, for sealing between an end portion and the first frame to prevent leakage; a sheet, provided in the second frame in contact with the developer carrying member along the rotation axial direction of the developer carrying member; a filler filling a space defined by the first and second frames, the end portion seal and the sheet at a connecting portion where the end portion seal and the sheet contact each other; and a projected portion provided in the first frame and projected into the space, the projected portion is spaced from the second frame, the end portion seal in the rotation axial direction.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 13, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Naoki Hayashi, Yosuke Kashiide, Masaaki Sato, Fuyuki Sugihara