Patents by Inventor Yasuyuki Takimoto

Yasuyuki Takimoto 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).

  • Printing plate production apparatus
    Patent number: 4044385
    Abstract: Printing plate production apparatus wherein a latent image is formed at the surface of photoconductive insulating sheet, either by an optical system for effecting sheet exposure or by a laser emission scanning system which constitutes the terminal of a facsimile transmission system, this latent image is developed by toner particles, for example, which are applied on, but not fixed on the photoconductive sheet, the developed image is temporarily transferred onto a printing plate with which the photoconductive sheet is brought into pressure contact, and the printing plate carrying the developed image is exposed to light which may effect chemical changes in the printing plate to harden portion thereof unprotected by toner particles after which the printing plate receives treatment to remove toner particles and unhardened portions thereof.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: August 23, 1977
    Assignee: Nippon Paint
    Inventors: Masakatsu Nishimura, Shin Saito, Kunsei Tanabe, Yasusi Umeda, Seiji Arimatsu, Yasuyuki Takimoto
  • Process using suction to form relief images
    Patent number: 4038078
    Abstract: A process for formation of a relief image which comprises exposing a layer of a photosensitive composition in liquid provided on the surface of a support material to light through a negative to make cured the photosensitive composition at the exposed part and eliminating the non-cured photosensitive composition at the non-exposed part by suctioning for development, the photosensitive composition comprising as the essential components only (1) at least one addition polymerizable unsaturated monomer having at least one acryloyl or methacryloyl group per each molecule and a molecular weight of not more than about 1000 per each acryloyl or methacryloyl group and (2) at least one photopolymerization initiator.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: July 26, 1977
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Kiyomi Sakurai, Yasuyuki Takimoto
  • Photosensitive composition using maleic anhydride adduct of a 1,2 polybutadiene
    Patent number: 4023973
    Abstract: A photosensitive composition comprising (1) a maleic anhydride adduct of 1,2-polybutadiene having a molecular weight of 10,000 or higher, (2) at least one photosensitizer and/or at least one photosensitive crosslinking agent, and, if necessary, (3) at least one acrylic monomer. This composition can be developed with water or a polar solvent such as an alcohol, and its layer formed on a support provides a printing plate. When the acrylic monomer is contained, the composition is suitable for use in flexographic printing.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: May 17, 1977
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Fumitake Imaizumi, Isao Nagaoka, Mitsuo Kurokawa, Koei Komatsu, Yasuyuki Takimoto, Hidefumi Kusuda