Patents by Inventor Toshiro Hirama

Toshiro Hirama 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).

  • Coating compositions and methods for preventing adhesion of organisms
    Patent number: 5015472
    Abstract: Disclosed are a coating composition (A) for preventing adhesion of organisms which comprises as its vehicle component a homopolymer or a copolymer, the homopolymer being one prepared by homopolymerizing a phenol-modified unsaturated monomer obtained by reacting (a) an unsaturated monomer containing epoxy group and/or hydroxyl group with (b) an addition reaction product of a phenolic compound with a compound having one carboxylic anhydride group per molecule, and the copolymer being one prepared by copolymerizing said phenol-modified unsaturated monomer and a radically polymerizable unsaturated monomer, and also a coating composition (B) for preventing adhesion of organisms which comprises as its vehicle component a phenol-modified resin prepared by reacting (c) a resin containing epoxy group and/or hydroxyl group with (b) and addition reaction product of a phenolic compound with a compound having one carboxylic anhyhdride group per molecule.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: May 14, 1991
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Osamu Isozaki, Naozumi Iwasawa, Toshiro Hirama, Hiroshi Iwai
  • Coating compositions for preventing adhesion of organisms
    Patent number: 4973477
    Abstract: Disclosed are a coating composition (A) for preventing adhesion of organisms which comprises as its vehicle component a homopolymer or a copolymer, the homopolymer being one prepared by homopolymerizing a phenol-modified unsaturated monomer obtained by reacting (a) an unsaturated monomer containing epoxy group and/or hydroxyl group with (b) an addition reaction product of a phenolic compound with a compound having one carboxylic anhydride group per molecule, and the copolymer being one prepared by copolymerizing said phenol-modified unsaturated monomer and a radically polymerizable unsaturated monomer, and also a coating composition (B) for preventing adhesion of organisms which comprises as its vehicle component a phenol-modified resin prepared by reacting (c) a resin containing epoxy group and/or hydroxyl group with (b) an addition reaction product of a phenolic compound with a compound having one carboxylic anhydride group per molecule.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: November 27, 1990
    Assignee: Kansai Paint Company, Limited
    Inventors: Osamu Isozaki, Naozumi Iwasawa, Toshiro Hirama, Hiroshi Iwai