Patents by Inventor Shigeki Matsubara

Shigeki Matsubara 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).

  • Air-drying aqueous coating composition for electro-deposition based on fatty acid modified acrylic copolymers
    Patent number: 5037866
    Abstract: An air-drying aqueous coating composition for electrodeposition comprising[A] a water-solubilized product or a water-dispersed product obtained by reacting (A-1) an epoxy resin and (A-2) a (semi)drying oil fatty acid-modified vinyl polymer having an acid value of 10 to 200 in such proportions that the solids weight ratio of the component (A-1) to the component (A-2) is from 90/10 to 5/95, and[B] an amphoteric organic solvent having affinity for component [A].
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: August 6, 1991
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Tetsuo Aihara, Yasuharu Nakayama, Shigeki Matsubara, Kozo Sawada
  • Air-drying aqueous coating composition for electrodeposition
    Patent number: 4933380
    Abstract: An air-drying aqueous coating composition for eletrodeposition comprising[A] water-solubilized product or a water-dispersed product obtained by reacting (A-1) an epoxy resin and (A-2) a maleinized product of a (semi)drying oil fatty acid-modified vinyl polymer having an acid value of 10 to 200 in such proportions that the solids weight ratio of the component (A-1) to the component (A-2) is from 90/10 to 5/95, and[B] an amphoteric organic solvent having affinity for component [A].
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: June 12, 1990
    Assignee: Kansai Paint Co.
    Inventors: Tetsuo Aihara, Yasuharu Nakayama, Shigeki Matsubara