Patents by Inventor Hisaaki Kudoh

Hisaaki Kudoh 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).

  • Modified polytetrafluoroethylene and process for its production by irradiation
    Patent number: 5444103
    Abstract: Modified PTFE is produced by exposing a starting PTFE to an ionizing radiation for a total dose of at least 100 kGy in the absence of oxygen at a temperature not lower than the crystal melting point of the starting PTFE. The thus modified PTFE is improved in radiation resistance and has rubber characteristics.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: August 22, 1995
    Assignee: Raytech Corporation
    Inventors: Yoneho Tabata, Kazushige Otsuhata, Tetsuya Ikeda, Kohji Ueno, Yuichi Yoshida, Akihiro Oshima, Tadao Suguchi, Hisaaki Kudoh