Patents by Inventor Sadayoshi Kaneda

Sadayoshi Kaneda 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).

  • Photosensitive resin composition
    Patent number: 4564580
    Abstract: Disclosed is a photosensitive resin composition comprising an aqueous dispersion or emulsion comprising components (1), (3) and (4) as indispensable components and optionally the following component (2):(1) a water-soluble saponified vinyl acetate polymer to which a styrylpyridinium or styrylquinolinium group has been added;(2) a water-dispersible or hydrophobic polymer;(3) a photo-polymerizable unsaturated compound having an ethylenically unsaturated group; and(4) a photo-polymerization initiator.This composition has excellent dispersion stability, sensitivity and resolving power and produces a hardened product having good solvent resistance, water resistance and abrasion resistance.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: January 14, 1986
    Assignees: Kogyo Gijutsuin, Murakami Screen Kabushiki Kaisha
    Inventors: Kunihiro Ichimura, Tsuguo Yamaoka, Sadayoshi Kaneda, Toru Shibuya
  • Photosensitive diazo composition with graft copolymer for use in printing screen
    Patent number: 4154614
    Abstract: The photosensitive composition contains a water-soluble graft copolymer of a partially hydrolyzed polyvinyl acetate grafted with acrylonitrile and optionally another vinylic monomer, a polymeric emulsion and a diazo compound. This composition possesses high resistance to solvent, abrasion and moisture and a favorable water-dissolubility as well.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: May 15, 1979
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Takahiro Tsunoda, Sadayoshi Kaneda, Shin Saito