Patents by Inventor Yasumasa Sakamoto

Yasumasa Sakamoto 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).

  • Inking device in a printing machine
    Patent number: 4602564
    Abstract: An inking device in a printing machine is improved by providing an ink reciprocating roller adjacent to ink application rollers, a regulator provided adjacent to a hysteresis surface of the ink reciprocating roller for forming residual ink on the hysteresis surface into a uniform film thickness, an ink source roller partly immersed in ink in an ink receiver, and an ink delivery roller interposed between the ink source roller and the ink reciprocating roller.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: July 29, 1986
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Yasumasa Sakamoto, Toyoo Nimoda, Yoshinori Hattori