Patents by Inventor Yasuhiro Hidaka

Yasuhiro Hidaka 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).

  • Method of producing polyurethanes
    Patent number: 4404352
    Abstract: The use of catalytically effective amounts of a specific organotin compound and a specific amine compound in the production of polyurethanes by reacting an at least partially blocked isocyanate compound with an active hydrogen-containing compound significantly lowers the baking temperature and gives cured coatings with a smooth surface and good performance.
    Type: Grant
    Filed: August 4, 1982
    Date of Patent: September 13, 1983
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Koreyoshi Suenobu, Masanori Kohara, Yasuhiro Hidaka, Kazuki Katsuyama, Ryoichi Kinishi
  • Stabilized antifouling paint composition
    Patent number: 4376181
    Abstract: There is provided an antifouling paint composition stabilized against viscosity increase and gelation during storage, which comprises a triorganotin-containing polymer and cuprous oxide as combined active ingredients, a stabilizing amount of a hindered phenol, and a solvent therefor.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: March 8, 1983
    Assignee: Yoshitomi Pharmaceutical Industries Ltd.
    Inventors: Koreyoshi Suenobu, Yasuhiro Hidaka, Tetsuji Ike