Patents by Inventor Reiho Takabe

Reiho Takabe 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).

  • Patent number: 4009305
    Abstract: A carbon fiber is oxidized to form oxygen-containing functional groups on the entire surface of the fiber and then contacted with ammonia, an organic amine, a lactam, or an amino carboxylic acid at a temperature of 100.degree.-500.degree. C whereby the surfaces of the carbon fiber obtain good affinity for a synthetic resin.
    Type: Grant
    Filed: December 20, 1973
    Date of Patent: February 22, 1977
    Assignees: Kureha Kagaku Kogyo Kabushiki Kaisha, Toyo Boseki Kabushiki Kaisha
    Inventors: Hiroto Fujimaki, Fumio Kodama, Reiho Takabe, Kiro Asano, Koji Seguchi