Patents by Inventor Kiyoo Katou

Kiyoo Katou 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).

  • Process for manufacturing modified conjugated diene polymer, composition comprising the polymer, and tire comprising the composition
    Patent number: 8278395
    Abstract: The present invention has an object to provide a conjugated diene-based polymer, subjected to a vulcanization treatment to make a vulcanized rubber, the vulcanized rubber useful as a material for tire treads excellent in the balance among wet skid characteristics, low hysteresis loss, abrasion resistance, breaking strength and rigidity, and to provide its manufacturing process.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: October 2, 2012
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yuichi Kitagawa, Toshikazu Hoshina, Kiyoo Katou
  • PROCESS FOR MANUFACTURING MODIFIED CONJUGATED DIENE POLYMER, COMPOSITION COMPRISING THE POLYMER, AND TIRE COMPRISING THE COMPOSITION
    Publication number: 20100210760
    Abstract: The present invention has an object to provide a conjugated diene-based polymer, subjected to a vulcanization treatment to make a vulcanized rubber, the vulcanized rubber useful as a material for tire treads excellent in the balance among wet skid characteristics, low hysteresis loss, abrasion resistance, breaking strength and rigidity, and to provide its manufacturing process.
    Type: Application
    Filed: March 25, 2008
    Publication date: August 19, 2010
    Inventors: Yuichi Kitagawa, Toshikazu Hoshina, Kiyoo Katou