Patents by Inventor Giro Watanabe

Giro Watanabe 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).

  • Polymer composition for tire and pneumatic tire using same
    Patent number: 6334919
    Abstract: A polymer composition for a tire having an air permeation coefficient of 25×10−12 cc·cm/cm2·sec ·cmHg (at 30° C.) or less and a Young's modulus of 1 to 500 MPa, including (A) at least 10% by weight, based on the weight of the total polymer component, of at least one thermoplastic resin having an air permeation coefficient of not more than 25×10−12 cc·cm/cm2·sec·cmHg (at 30° C.) and a Young's modulus of more than 500 MPa and (B) at least 10% by weight, based on the total weight of the polymer component, of at least one elastomer component having an air permeation coefficient of more than 25×10−12 cc·cm/cm2·sec·cmHg (at 30° C.) and a Young's modulus of not more than 500 MPa, wherein the total amount (A)+(B) of the component (A) and the component (B) is not less than 30% by weight based on the weight of the total polymer component, and a pneumatic tire obtained therefrom.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: January 1, 2002
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Hidekazu Takeyama, Yoshihiro Soeda, Gou Kawaguchi, Tetsuji Kawazura, Osamu Ozawa, Giro Watanabe, Noriaki Kuroda, Masahiro Ikawa
  • Polymer composition for tire and pneumatic tire using same
    Patent number: 6079465
    Abstract: A polymer composition for a tire having an air permeation coefficient of 25.times.10.sup.-12 cc.multidot.cm/cm.sup.2 .multidot.sec.multidot.cmHg (at 30.degree. C.) or less and a Young's modulus of 1 to 500 MPa, including (A) at least 10% by weight, based on the weight of the total polymer component, of at least one thermoplastic resin having an air permeation coefficient of not more than 25.times.10.sup.-12 cc.multidot.cm/cm.sup.2 .multidot.sec.multidot.cmHg (at 30.degree. C.) and a Young's modulus of more than 500 MPa and (B) at least 10% by weight, based on the total weight of the polymer component, of at least one elastomer component having an air permeation coefficient of more than 25.times.10.sup.-12 cc.multidot.cm/cm.sup.2 .multidot.sec.multidot.cmHg (at 30.degree. C.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: June 27, 2000
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Hidekazu Takeyama, Yoshihiro Soeda, Gou Kawaguchi, Tetsuji Kawazura, Osamu Ozawa, Giro Watanabe, Noriaki Kuroda, Masahiro Ikawa