Patents by Inventor Shinichi Kawatsuji

Shinichi Kawatsuji 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).

  • Patent number: 6127090
    Abstract: A process for producing a photosensitive resin printing plate comprising a step of forming a liquid photosensitive resin into a layer by applying the same to a substrate with a bucket, wherein a forming speed variation point for said layer is set at a position which is 30 to 80% of the forming distance of said layer, and wherein the liquid photosensitive resin is formed into a layer by successively reducing the forming speed thereafter.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: October 3, 2000
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Shinichi Kawatsuji, Mitsuhiro Watanabe
  • Patent number: 5275919
    Abstract: A photosensitive resin printing plate which can provide printed matter with good ink coverage and little dot gain, and a plate making apparatus used therefor.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: January 4, 1994
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Shinichi Kawatsuji, Masaru Yanagita
  • Patent number: 4773841
    Abstract: An apparatus for adjusting the thickness of a resin plate formed in a resin plate making machine comprising stacked, wedge-shaped members, each wedge-shaped member having an inclined surface slidably contacting the other inclined surface, the top most member being connected to either spacers positioned above a rigid base plate on which the resin plate is formed, or to the rigid base plate itself, for adjusting the height of the spacers relative to the base plate as the wedge-shaped members are moved relative to one another in the direction of inclination of the inclined surfaces.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: September 27, 1988
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventor: Shinichi Kawatsuji
  • Patent number: 4214942
    Abstract: An apparatus for producing a photo-polymer plate having relief image areas thereon has a photo-polymerizable material feed device reciprocally movable along guide rails through a photo-polymerizable material layer forming station. The feed device has a frame supported on the rails by first and second pairs of wheels and carrying a bucket containing the photo-polymerizable material in liquid phase and tiltable to pour the material onto a protective sheet material placed on a photo-polymerizable material layer forming station when the feed device is moved over the protective sheet material. A doctor is mounted on the frame to level the layer as well as to preliminarily reduce the thickness thereof. A backing sheet material is placed over the layer to form an assembly of the two sheet material and the layer of the photo-polymerizable materials sandwiched therebetween.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: July 29, 1980
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Michio Inoko, Shinichi Kawatsuji, Toshiie Matsui, Shuu Yoshida
  • Patent number: 4196018
    Abstract: A process for washing exposed photosensitive resin printing plates to remove uncured resin with a washing liquid, said process comprising a first step in which the washing liquid is sprayed on the surface of the resin plate attached to the surface of a rotary drum while rotating said drum to remove most of the uncured resin, and a second step in which the remaining uncured resin is perfectly eliminated by contacting a rotating brush against the surface of the resin plate on said rotating drum.
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: April 1, 1980
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Michio Inoko, Shinichi Kawatsuji, Takeshi Yamagata