Patents by Inventor Koji TSUJIOKA

Koji TSUJIOKA 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).

  • Optical scanning device and image forming apparatus
    Patent number: 10156807
    Abstract: From an upper surface of a housing of an optical scanning device, a plate-like rail part, which extends along a screw shaft to guide movement of a holding member, protrudes, and the holding member is provided with a guide part having a guide groove engaged with the rail part. The optical scanning device further includes scraper members fixed to the holding member and scraping off foreign matters attached to the rail part. On side surfaces of the housing, which face a moving end side, collection cases are provided to collect the foreign matters scraped off by the scraper members.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: December 18, 2018
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Koji Tsujioka
  • OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
    Publication number: 20180314183
    Abstract: From an upper surface of a housing of an optical scanning device, a plate-like rail part, which extends along a screw shaft to guide movement of a holding member, protrudes, and the holding member is provided with a guide part having a guide groove engaged with the rail part. The optical scanning device further includes scraper members fixed to the holding member and scraping off foreign matters attached to the rail part. On side surfaces of the housing, which face a moving end side, collection cases are provided to collect the foreign matters scraped off by the scraper members.
    Type: Application
    Filed: April 19, 2018
    Publication date: November 1, 2018
    Inventor: Koji TSUJIOKA