Patents by Inventor Takuo Hamaguchi

Takuo Hamaguchi 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).

  • Treatment for rubber-reinforcing fibers, reinforcing fibers, and reinforced rubbers
    Patent number: 6262154
    Abstract: A reinforcing fiber for a rubber product that has excellent heat resistance, water resistance and resistance to flex fatigue without undergoing a complicated production process and a treatment agent therefore. This treatment agent comprises a rubber latex, a resorcin-formaldehyde water-soluble condensate and triazine thiol.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: July 17, 2001
    Assignees: Nippon Sheet Glass Co., Ltd., Nippon Zeon Co., Ltd.
    Inventors: Akinobu Okamura, Takuo Hamaguchi, Mitsuharu Akiyama, Osamu Mori, Mitsugu Ishihara