Patents by Inventor Shoji Yamaguchi

Shoji Yamaguchi 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).

  • Copper-type conductive coating composition
    Patent number: 4705647
    Abstract: A copper-type conductive coating composition which comprises:(A) a copper powder with hydrogen loss of at most 0.2% by weight or a copper powder with its oxidized surface layer removed by treatment with an organic carboxylic acid,(B) a coating binder resin, and(C) an antioxidant selected from triazoles represented by the formula: ##STR1## wherein Y is a hydroxyl group, a hydrogen atom, a C.sub.1 -C.sub.18 alkyl group or a halogen atom, and a is an integer of 1 to 3, and trithiophosphites represented by the formula: ##STR2## wherein each of R.sub.1 to R.sub.3 is a C.sub.1 -C.sub.30 alkyl group or an allyl group.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: November 10, 1987
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Shoji Yamaguchi, Kimiko Yamada
  • Copper-type conductive coating composition
    Patent number: 4663079
    Abstract: A copper-type conductive coating composition which comprises:(A) a copper powder with hydrogen loss of at most 0.2% by weight or a copper powder with its oxidized surface layer removed by treatment with an organic carboxylic acid,(B) a coating binder resin, and(C) an antioxidant selected from triazoles represented by the formula: ##STR1## wherein Y is a hydroxyl group, a hydrogen atom, a C.sub.1 -C.sub.18 alkyl group or a halogen atom, and a is an integer of 1 to 3, and trithiophosphites represented by the formula: ##STR2## wherein each of R.sub.1 to R.sub.3 is a C.sub.1 -C.sub.30 alkyl group or an allyl group.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: May 5, 1987
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Shoji Yamaguchi, Kimiko Yamada