Patents by Inventor Akira Takaku

Akira Takaku 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 producing a thin carbon plate
    Patent number: 5180529
    Abstract: The present invention relates to a thin carbon plate and a process for producing the same. More particularly, the present invention relates to a thin carbon plate excellent in properties such as gas impermeability, mechanical strengths and the like, as well as to a process for producing the same.
    Type: Grant
    Filed: February 20, 1991
    Date of Patent: January 19, 1993
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Akira Takaku, Toshimasa Hashimoto, Toshio Suzuki, Yutaka Takahashi, Kazuo Saito
  • High-density vitreous carbon material and process for producing the same
    Patent number: 5152941
    Abstract: The present invention relates to a high-density vitreous carbon material having heat resistance, chemical resistance and no liquid and gas permeability, used in various industries, as well as to a process for producing said carbon material. More particularly, the present invention relates to a high-density vitreous carbon material having a sufficient thickness and a high density, as well as to a process for producing the same.
    Type: Grant
    Filed: February 20, 1991
    Date of Patent: October 6, 1992
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Akira Takaku, Toshimasa Hashimoto, Toshio Suzuki, Yutaka Takahashi, Kazuo Saito