Patents by Inventor Toshoku Cho

Toshoku Cho 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 the preparation of a fiber-reinforced carbon composite
    Patent number: 4902453
    Abstract: A preformed yarn useful in forming fiber-reinforced carbon composite articles is disclosed which includes a core of a multiplicity of inorganic reinforcing fibers, a mixed powder provided in the interstices between the fibers and including a finely divided carbonaceous binder pitch and a finely divided coke, and a flexible sleeve formed of a thermoplastic resin and surrounding the core.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: February 20, 1990
    Assignee: Across Co., Ltd.
    Inventors: Akimitsu Okura, Toshoku Cho, Takao Nakagawa, Shimpei Gomi, Takuya Ueda
  • Preformed yarn useful in forming composite articles and process of producing same
    Patent number: 4772502
    Abstract: A preformed yarn useful in forming fiber-reinforced carbon composite articles is disclosed which includes a core of a multiplicity of inorganic reinforcing fibers, a mixed powder provided in the interstices between the fibers and including a finely divided carbonaceous binder pitch and a finely divided coke, and a flexible sleeve formed of a thermoplastic resin and surrounding the core.
    Type: Grant
    Filed: July 29, 1987
    Date of Patent: September 20, 1988
    Assignee: Across Co., Ltd.
    Inventors: Akimitsu Okura, Toshoku Cho, Takao Nakagawa, Shimpei Gomi, Takuya Ueda