Patents by Inventor Toshiyuki Karaishi

Toshiyuki Karaishi 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).

  • Image forming method using improved developing agent
    Patent number: 4772527
    Abstract: The present invention uses a developing agent with a Vickers hardness of 3 or more for image forming steps. Therefore, the image forming method according to the present invention can prevent a developing agent from adhering to the surface of an image carrier in a short period of time by the repetition of image forming steps.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: September 20, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Toshiyuki Karaishi