Patents by Inventor Otokuma Hashimoto

Otokuma Hashimoto 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).

  • Screen-printing mask and method
    Patent number: 4324815
    Abstract: A method of forming a film or fine line which is very thick in comparison with its width, by repeated printings with heterogeneous or homogeneous printing pastes by using a screen-printing mask. A screen-printing mask having spacing means formed thereon for spacing the screen apart from the work surface.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: April 13, 1982
    Assignee: Mitani Electronics Industry Corp.
    Inventors: Minoru Mitani, Kiyoharu Hashimoto, Kenjiro Ninomiya, Tochikiyo Miyazaki, Otokuma Hashimoto, Hideki Mori
  • Screen-printing mask
    Patent number: 4242401
    Abstract: A method of forming a film or fine line which is very thick in comparison with its width, by repeated printings with heterogeneous or homogeneous printing pastes by using a screen-printing mask. A screen-printing mask having spacing means formed thereon for spacing the screen apart from the work surface.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: December 30, 1980
    Assignee: Mitani Electronics Industry Corp.
    Inventors: Minoru Mitani, Kiyoharu Hashimoto, Kenjiro Ninomiya, Toshikiyo Miyazaki, Otokuma Hashimoto, Hideki Mori