Patents by Inventor Reikichi Nakano

Reikichi Nakano 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: 6022606
    Abstract: A polyvinyl chloride resin sheet which is excellent in resistance to scratch, wear and slip and hence suitable for use as flooring materials, which has a thickness of 50-500 .mu.m; an embossed and matted surface of which roughness is 15-25 .mu.m; and a transmittance of not less than 75%, and which comprises:(a) polyvinyl chloride;(b) a plasticizer in an amount of 5-35 parts by weight per 100 parts by weight of polyvinyl chloride; and(c) short glass fibers having a diameter of 6-12 .mu.m and an average length of 0.2-1.0 mm in an amount of 0.5-30 parts by weight per 100 parts by weight of polyvinyl chloride.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: February 8, 2000
    Assignee: Bando Chemical Industries, Ltd.
    Inventor: Reikichi Nakano
  • Patent number: 5772941
    Abstract: A polyvinyl chloride resin sheet which is excellent in resistance to scratch, wear and slip and hence suitable for use as flooring materials, which has a thickness of 50-500 .mu.m; an embossed and matted surface of which roughness is 15-25 .mu.m; and a transmittance of not less than 75%, and which comprises: (a) polyvinyl chloride; (b) a plasticizer in an amount of 5-35 parts by weight per 100 parts by weight of polyvinyl chloride; and (c) short glass fibers having a diameter of 6-12 .mu.m and an average length of 0.2-1.0 mm in an amount of 0.5-30 parts by weight per 100 parts by weight of polyvinyl chloride. The resin sheet can be produced by calendering a composition containing components (a) and (b) along with glass fibers (c) having an average length of 2-12 mm. The calendered sheet is treated with an embossing roll whose peripheral velocity is 1.3-2.3 times that of the final calender roll.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: June 30, 1998
    Assignee: Bando Chemical Industries, Ltd.
    Inventor: Reikichi Nakano