Patents by Inventor Yasuo Hanazuka

Yasuo Hanazuka 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).

  • Moisture- or anaerobic-curable and photocurable silicone compositions
    Patent number: 5489622
    Abstract: A curable silicone composition comprising an addition reaction product of an organopolysiloxane having amino groups at both ends of its molecule and a vinyl group-containing isocyanate, and a moisture-curing or anaerobic-curing catalyst and a photopolymerization catalyst.The silicone composition has high photocurability and moisture- or anaerobic-curability, easy to manufacture and easy to handle.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: February 6, 1996
    Assignee: Three Bond Co., Ltd.
    Inventors: Osamu Hara, Yasuo Hanazuka, Kunihiko Nakajima, Kohichi Naruse
  • Curable silicon composition
    Patent number: 5340847
    Abstract: A composition useful as a liquid gasket, having high working efficiency and high initial pressure resistance, is provided. The composition, characterized by being curable by ultraviolet light and by moisture, includes (a) a polysiloxane containing, on at least one molecular end, at least one group selected from the group consisting of (meth)acryl, glycidyl, propenyloxysilyl and thiol; (b) a polyorganosiloxane having silanol groups at both molecular ends; (c) a polyorganosiloxane having, on at least one molecular end, a hydrolyzable group; (d) a photopolymerization catalyst; and (e) a condensation catalyst.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: August 23, 1994
    Assignee: Three Bond Co., Ltd.
    Inventors: Yasuo Hanazuka, Ikuzo Usami, Kazuyuki Chiba, Noriko Mizutani