Patents by Inventor Yuichi Kadoya

Yuichi Kadoya 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).

  • Conductive polypropylene resin foam sheet and receptacle
    Patent number: 7390563
    Abstract: An electroconductive polypropylene type resin foamed sheet comprising a polypropylene type resin foamed sheet, and an electroconductive coating material layer and, preferably, a resin layer, formed on at least one side of the foamed sheet, and having a density of at least 180 kgm?3 and less than 850 kgm?3, wherein the resin layer has a surface resistance of less than 1012 ?/?. A container made of such an electroconductive polypropylene type resin foamed sheet is useful for packaging an electronic component.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: June 24, 2008
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yuichi Kadoya, Hirokazu Kawauchi, Eitaroh Fukutaka
  • Packaging container for electronic part
    Patent number: 7014896
    Abstract: An electronic component packaging container which comprises a multilayer polyester sheet having a base layer comprising a polyethylene terephthalate type resin and a polycarbonate type resin and a surface layer comprising a polycarbonate type resin, formed on at least one side of the base layer, wherein the base layer contains from 70 to 97 wt % of the polyethylene terephthalate type resin and from 3 to 30 wt % of the polycarbonate type resin based on the total amount of the polyethylene terephthalate type resin and the polycarbonate type resin, and the thickness of the surface layer is from 10 to 30% of the total thickness.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: March 21, 2006
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeshi Miyakawa, Mikio Shimizu, Yuichi Kadoya, Masafumi Hiura, Minoru Oda
  • Conductive polypropylene resin foam sheet and receptacle
    Publication number: 20040013821
    Abstract: An electroconductive polypropylene type resin foamed sheet comprising a polypropylene type resin foamed sheet, and an electroconductive coating material layer and, preferably, a resin layer, formed on at least one side of the foamed sheet, and having a density of at least 180 kgm−3 and less than 850 kgm−3, wherein the resin layer has a surface resistance of less than 1012 &OHgr;/□. A container made of such an electroconductive polypropylene type resin foamed sheet is useful for packaging an electronic component.
    Type: Application
    Filed: May 6, 2003
    Publication date: January 22, 2004
    Inventors: Yuichi Kadoya, Hirokazu Kawauchi, Eitaroh Fututaka
  • Control method for program and data, and computer
    Publication number: 20020152394
    Abstract: The present invention is related to a control method for program and data installed in a computer to secure their security and reliability, and is also related to the computer that executes this method.
    Type: Application
    Filed: March 25, 2002
    Publication date: October 17, 2002
    Inventor: Yuichi Kadoya