Patents by Inventor Setsuo Tsuruoka

Setsuo Tsuruoka 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).

  • Water treating compositions
    Patent number: 4469615
    Abstract: A water treating composition comprising a water-soluble copolymer consisting of, as the components, (A) an addition reaction product of a glycidyl ether or glycidyl ester and an .alpha.,.beta.-ethylenically unsaturated carboxylic acid and (B) another vinyl monomer. In one embodiment, the water treating composition further comprises one or more conventional corrosion preventing/inhibiting agents.
    Type: Grant
    Filed: November 9, 1982
    Date of Patent: September 4, 1984
    Assignees: Kohryu Industrial Co. Ltd., Toagosei Chemical Industrial Co.
    Inventors: Setsuo Tsuruoka, Iehito Tasaka, Yuji Kawamura, Shizuo Kimata, Tatsuki Wabiko