Patents by Inventor Koichi Yonemoto

Koichi Yonemoto 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).

  • Fire retardant material
    Patent number: 11920076
    Abstract: A fire retardant material comprising a carbon fiber which tensile elasticity is 700 GPa or more, and a fire retardant resin such as polycarbonate.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: March 5, 2024
    Assignee: TOKYO UNIVERSITY OF SCIENCE FOUNDATION
    Inventors: Koichi Yonemoto, Kiyoto Murakami, Satoshi Nonaka
  • FIRE RETARDANT MATERIAL
    Publication number: 20200299583
    Abstract: A fire retardant material comprising a carbon fiber which tensile elasticity is 700 GPa or more, and a fire retardant resin such as polycarbonate.
    Type: Application
    Filed: October 12, 2018
    Publication date: September 24, 2020
    Applicant: TOKYO UNIVERSITY OF SCIENCE FOUNDATION
    Inventors: Koichi YONEMOTO, Kiyoto MURAKAMI, Satoshi NONAKA
  • Carbon fiber reinforced prepreg of gas barrier properties, carbon fiber reinforced plastic and methods of producing the same
    Patent number: 7981500
    Abstract: There are provided a carbon fiber reinforced prepreg of gas barrier properties comprising a sheet-like carbon fiber reinforcement and a matrix resin including therein a gas barrier layer having a clay mineral with a plate-like crystal structure unidirectionally aligned and densely laminated, and a carbon fiber reinforced plastic produced from the carbon fiber reinforced prepreg. Such prepreg is obtained by disposing a film material of gas barrier properties having a clay mineral with a plate-like crystal structure unidirectionally aligned and densely laminated, in at least one interlayer of a laminate of a carbon fiber reinforced prepreg comprising a sheet form carbon fiber reinforcement and a matrix resin; and then heating and/or pressurizing the laminate. The carbon fiber-reinforced composite material of the invention exhibits high gas barrier properties, and particularly hydrogen gas barrier properties.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: July 19, 2011
    Assignees: Kyushu Institute of Technology, National Institute of Advanced Industrial Science and Technology, Institute of National Colleges of Technology, Japan, Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Koichi Yonemoto, Takeo Ebina, Fujio Mizukami, Keiichi Okuyama, Shoji Kamiya
  • CARBON FIBER REINFORCED PREPREG OF GAS BARRIER PROPERTIES, CARBON FIBER REINFORCED PLASTIC AND METHODS OF PRODUCING THE SAME
    Publication number: 20100304145
    Abstract: There are provided a carbon fiber reinforced prepreg of gas barrier properties comprising a sheet-like carbon fiber reinforcement and a matrix resin including therein a gas barrier layer having a clay mineral with a plate-like crystal structure unidirectionally aligned and densely laminated, and a carbon fiber reinforced plastic produced from the carbon fiber reinforced prepreg. Such prepreg is obtained by disposing a film material of gas barrier properties having a clay mineral with a plate-like crystal structure unidirectionally aligned and densely laminated, in at least one interlayer of a laminate of a carbon fiber reinforced prepreg comprising a sheet form carbon fiber reinforcement and a matrix resin; and then heating and/or pressurizing the laminate. The carbon fiber-reinforced composite material of the invention exhibits high gas barrier properties, and particularly hydrogen gas barrier properties.
    Type: Application
    Filed: October 27, 2008
    Publication date: December 2, 2010
    Applicants: Kyushu Institute of Technology, National Institute of Advanced Industrial Science and Technology
    Inventors: Koichi Yonemoto, Takeo Ebina, Fujio Mizukami, Keiichi Okuyama, Shoji Kamiya