Patents Assigned to Oriental Photo Industries Co., Ltd.
  • Image-forming photosensitive composition
    Patent number: 4465761
    Abstract: An image-forming photosensitive composition comprises:(a) an organohalogen compound capable of forming a free radical by the irradiation with light,(b) a substantially colorless dye which colors when it is contacted with an acidic substance,(c) an aromatic amine and/or conjugated nitrogen-containing heterocyclic compound,(d) a binder, and(e) an aliphatic amine and/or alicyclic amine.
    Type: Grant
    Filed: February 23, 1982
    Date of Patent: August 14, 1984
    Assignees: Oriental Photo Industries Co., Ltd., Hodogaya Chemical Co., Ltd.
    Inventors: Yukio Takegawa, Akira Tukada, Susumu Suzuka, Nobuyoshi Endo