Patents by Inventor Kazuyosi Kobayasi

Kazuyosi Kobayasi 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).

  • Ink scraper for a stencil printer
    Patent number: 5285724
    Abstract: A printer for printing a stencil image on a sheet is provided having a scraper which prevents ink from flowing axially outward beyond the ink supply roller. The scraper can be connected to a plate which supports the ink supply roller and preferably includes a portion extending toward and/or contacting the ink supply roller.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: February 15, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuyosi Kobayasi, Tomoya Otomo, Mitsuo Sato
  • Stencil and screen assembly for a printer
    Patent number: 5255599
    Abstract: A printer for printing out an image formed in a stencil on a sheet. The stencil formed with perforations representative of an image is wrapped around a drum which is made up of a hollow cylindrical support and a mesh screen covering the support. The cylindrical support has an apertured portion and a non-apertured portion and accommodates an inking roller therein for supplying ink to a sheet via the stencil. The sheet is pressed against the stencil by a press roller that faces the inking roller with the intermediary of the drum. A high friction member is located at a predetermined position on the non-apertured portion of the drum or a predetermined position on the mesh screen corresponding to a position where the press roller begins to press a sheet against the stencil.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: October 26, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuyosi Kobayasi, Tomoya Otomo, Mitsuo Sate
  • Friction attachment for a stencil to a rotary printing drum
    Patent number: 5172632
    Abstract: A printer for printing out on image formed in a stencil on a sheet. The stencil formed with perforations representative of an image is wrapped around a drum which is made up of a hollow cylindrical support and a mesh screen covering the support. The cylindrical support has an apertured portion and a non-apertured portion and accommodates an inking roller therein for supplying ink to a sheet via the stencil. The sheet is pressed against the stencil by a press roller that faces the inking roller with the intermediary of the drum. A high friction member is located at a predetermined position on the non-apertured portion of the drum or a predetermined position on the mesh screen corresponding to a position where the press roller beings to press a sheet against the stencil.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: December 22, 1992
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuyosi Kobayasi, Tomoya Otomo, Mitsuo Sato