Patents by Inventor Yoshimi Shimizu

Yoshimi Shimizu 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).

  • Electrical insulating resin material, electrical insulating material, and electric wire and cable using the same
    Patent number: 6479590
    Abstract: The present invention relates to a resin material for an electrical insulating material, an electrical insulating material and electric wire and cable using the same. A resin material for an electrical insulating material according to present invention is characterized in that the resin component thereof comprises an ethylene &agr;-olefin copolymer (A) which satisfies specific conditions, such as a density of 0.92˜0.96 g/cm3, a melt flow rate (MFR) of 0.01˜200 g/10 minutes, a molecular weight distribution (Mw/Mn) of 1.5˜5.0, and possessing only one peak in terms of the number of peaks observed in an elution temperature-eluted amount curve as measured by the temperature raising elution fractionation (TREF) method, etc.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 12, 2002
    Assignee: Japan Polyolefins Co., Ltd.
    Inventors: Masaaki Ikeda, Yoshimi Shimizu