Patents by Inventor Watanabe Kazuo

Watanabe Kazuo 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).

  • Electrostatic printing plate
    Patent number: 4111692
    Abstract: An electrostatic printing plate is obtained by forming a permanent electroconductive pattern on its exposed portion, which is effected by irradiation of light to expose a light image on a photosensitive material comprising a photosensitive composition containing an aliphatic nitrogen compound and an organic halogen compound capable of generating a free radical upon irradiation by light.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: September 5, 1978
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Kuniomi Etoh, Shinichi Tanaka, Yoshio Kato, Watanabe Kazuo