Patents by Inventor Yoshinobu Kusuhara

Yoshinobu Kusuhara 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).

  • Patent number: 4229495
    Abstract: A primer coating composition comprising (1) a mixture of more than 50% by weight of aluminum powder and less than 50% by weight of zinc powder, and (2) at least one C.sub.1-4 -alkyl silicate, the weight ratio of (1) to (2) being 60:40 to 95:5. The composition is employed in a coating method which comprises applying a primer dispersion to the surface of a substrate to be coated. The primer disbersion is a dispersion of a mixture of more than 50% by weight of aluminum powder and less than 50% by weight of zinc powder in a solution of at least one organic solvent-soluble C.sub.1-4 -alkyl silicate in an organic solvent. The weight ratio of the metal powder to the alkyl silicate is as indicated. The coating is baked and a finishing powder paint is coated on the resulting primer. The finished coating is then baked.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: October 21, 1980
    Assignee: Seikisui Kagaku Kogyo Kabushiki Ltd.
    Inventors: Minoru Takahashi, Osamu Ishii, Masanori Naito, Yoshinobu Kusuhara, Naofumi Imahigashi
  • Patent number: 4183840
    Abstract: A composition comprising a poly(phenylene sulfide) resin powder and an aluminum oxide powder of colloidal size. The composition is useful as a powder coating composition. The composition exhibits improved adhesion to a substrate, even in hot water.
    Type: Grant
    Filed: January 20, 1978
    Date of Patent: January 15, 1980
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Minoru Takahashi, Osamu Ishii, Masanori Naito, Yoshinobu Kusuhara, Naofumi Imahigshi
  • Patent number: 4172734
    Abstract: A primer coating composition comprising (1) a mixture of more than 50% by weight of aluminum powder and less than 50% by weight of zinc powder, and (2) at least one C.sub.1-4 -alkyl silicate, the weight ratio of (1) to (2) being 60:40 to 95:5. The composition is especially useful as a primer for polyphenylene sulfide resin paints.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: October 30, 1979
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Minoru Takahashi, Osamu Ishii, Masanori Naito, Yoshinobu Kusuhara, Naofumi Imahigashi