Patents by Inventor Kenji Shirataki

Kenji Shirataki 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).

  • Method and an apparatus for applying an emulsion onto a screen-printing plate
    Patent number: 4668329
    Abstract: A method and an apparatus for applying an emulsion onto a screen-printing plate are disclosed, in which an emulsion film having thereon an applying emulsion of a predetermined thickness is prepared, which film is closely contacted with the screen-printing plate on its printing side for applying the emulsion thereon. Preferably, a penetrable agent is supplied for facilitating the release and adhesion of the applying emulsion.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: May 26, 1987
    Assignee: Tokai Shoji Co., Ltd.
    Inventor: Kenji Shirataki
  • Method for applying emulsion onto screen printing plate
    Patent number: 4599248
    Abstract: A method for applying an emulsion onto a screen printing plate, in which two squeegees are arranged on either side of the screen, one squeegee of which is directed to the applying operation and the other squeegee is directed to the scraping and recovering operation. The method results in an emulsion film of uniform thickness being applied to the screen, with the thickness of the film being greater on the printing side of the screen.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: July 8, 1986
    Assignee: Tokai Shoji Co. Ltd.
    Inventor: Kenji Shirataki
  • Apparatus for applying emulsion onto screen printing plate
    Patent number: 4509455
    Abstract: A method and an apparatus for applying an emulsion onto a screen printing plate are disclosed, in which two squeegees are arranged on either side of the screen, one squeegee of which is directed to the applying operation and the other squeegee is directed to the scraping and recovering operation. In accordance with the invention, a high quality screen printing plate may be obtained and very convenient operation and handling may be achieved.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: April 9, 1985
    Assignee: Tokai Shoji Co. Ltd.
    Inventor: Kenji Shirataki