Patents by Inventor Minoru Hisamatsu

Minoru Hisamatsu 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).

  • Foamable electroconductive polyolefin resin compositions
    Patent number: 4493788
    Abstract: A foamable, electroconductive polyolefinic resin composition comprising 70 to 95 weight percent of a polyolefinic resin and 5 to 30 weight percent of an electrically-conductive particulate furnace black having a specific surface area of at least 900 square meters per gram. Foam products prepared from this composition, preferably by extrusion foaming, are particularly useful for packaging sensitive electronic parts.
    Type: Grant
    Filed: August 10, 1982
    Date of Patent: January 15, 1985
    Assignee: The Dow Chemical Company
    Inventors: Akira Fujie, Minoru Hisamatsu
  • Foamable polyolefin resin composition
    Patent number: 4431575
    Abstract: Electroconductive olefin polymer foams which are suitable for use as packaging/cushioning materials for sensitive electronic parts are prepared from olefin polymer compositions which comprise a major proportion by weight of an olefin polymer, from 5 to 30 weight percent, based on said olefin polymer, of an electroconductive carbon black and from 0.1 to 10 weight percent, based on said olefin polymer of a saturated fatty acid amide compound.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: February 14, 1984
    Assignee: The Dow Chemical Company
    Inventors: Akira Fujie, Minoru Hisamatsu
  • Foaming synthetic resin compositions stabilized with certain naphthyl amine compounds
    Patent number: 4369257
    Abstract: Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion therein of from 0.1 to 10 weight percent, based upon the olefin polymer, of certain naphthyl amine compounds.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: January 18, 1983
    Assignee: Asahi-Dow Limited
    Inventors: Tsuneo Hoki, Minoru Hisamatsu
  • Foaming synthetic resin compositions stabilized with certain naphthyl amine compounds
    Patent number: 4331777
    Abstract: Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion therein of from 0.1 to 10 weight percent, based upon the olefin polymer, of certain naphthyl amine compounds.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: May 25, 1982
    Assignee: Asahi-Dow Limited
    Inventors: Tsuneo Hoki, Minoru Hisamatsu