Patents by Inventor Fumiaki Nagano

Fumiaki Nagano 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).

  • Vulcanization accelerator system for rubber compositions
    Patent number: 4020252
    Abstract: Rubber compositions containing an alkylene-bisdithiocarbamate and an amine-isocyanate addition compound as a vulcanization accelerator having excellent scorching stability with rapid vulcanization at usual vulcanization temperatures.
    Type: Grant
    Filed: July 1, 1975
    Date of Patent: April 26, 1977
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Iwao Sugiyama, Teruhide Furuhama, Fumiaki Nagano, Hiroshi Hirakawa