Patents by Inventor Youichi Oohara

Youichi Oohara 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: 6762212
    Abstract: An extruded styrene resin foam obtained by extrusion-foaming of a styrene resin and excellent in environmental compatibility and excellent in flame retardant property and thermal insulating property, characterized in that it contains, as a blowing agent, 100 to 10% by weight of at least one of saturated hydrocarbons having 3 to 5 carbons and 0 to 90% by weight of other blowing agent, based on the total amount of the blowing agent, and contains (A) a halogenated flame retardant and (B) at least one compound selected from the group consisting of phosphorus type flame retardants containing nitrogen atom in a molecule, tetrazole compounds, cyanuric acid and derivatives thereof, isocyanuric acid and derivatives thereof, metal borates, and boron oxides.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: July 13, 2004
    Assignee: Kaneka Corporation
    Inventors: Youichi Oohara, Fuminobu Hirose, Takeshi Sato, Hiroshi Fujiwara, Toru Yoshida
  • Publication number: 20030191203
    Abstract: An extruded styrene resin foam obtained by extrusion-foaming of a styrene resin and excellent in environmental compatibility and excellent in flame retardant property and thermal insulating property, characterized in that it contains, as a blowing agent, 100 to 10% by weight of at least one of saturated hydrocarbons having 3 to 5 carbons and 0 to 90 % by weight of other blowing agent, based on the total amount of the blowing agent, and contains (A) a halogenated flame retardant and (B) at least one compound selected from the group consisting of phosphorus type flame retardants containing nitrogen atom in a molecule, tetrazole compounds, cyanuric acid and derivatives thereof, isocyanuric acid and derivatives thereof, metal borates, and boron oxides.
    Type: Application
    Filed: February 5, 2003
    Publication date: October 9, 2003
    Applicant: Kaneka Corporation
    Inventors: Youichi Oohara, Fuminobu Hirose, Takeshi Sato, Hiroshi Fujiwara, Toru Yoshida
  • Patent number: 6569912
    Abstract: An extruded styrene resin foam obtained by extrusion-foaming of a styrene resin and excellent in environmental compatibility and excellent in flame retardant property and thermal insulating property, characterized in that it contains, as a blowing agent, 100 to 10% by weight of at least one of saturated hydrocarbons having 3 to 5 carbons and 0 to 90% by weight of other blowing agent, based on the total amount of the blowing agent, and contains (A) a halogenated flame retardant and (B) at least one compound selected from the group consisting of phosphorus type flame retardants containing nitrogen atom in a molecule, tetrazole compounds, cyanuric acid and derivatives thereof, isocyanuric acid and derivatives thereof, metal borates, and boron oxides.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: May 27, 2003
    Assignee: Kaneka Corporation
    Inventors: Youichi Oohara, Fuminobu Hirose, Takeshi Sato, Hiroshi Fujiwara, Toru Yoshida
  • Patent number: 6239195
    Abstract: The present invention provides a thermoplastic resin composition containing a thermoplastic resin and a silane-treated foliated phyllosilicate, the silane-treated foliated phyllosilicate being prepared by introducing a predetermined organosilane compound into a swellable layered silicate. According to the present invention, the silane-treated foliated phyllosilicate is prepared by introducing the organosilane compound into the swellable layered silicate after the basal spacing of the swellable layered silicate has been expanded, and is exfoliated as a number of fine layers dispersed uniformly in the thermoplastic resin composition of the present invention independently from one another. Thus, the present invention provides a thermoplastic resin composition excellent in mechanical properties, heat resistance, and the surface appearance of the resultant molded product.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: May 29, 2001
    Assignee: Kaneka Corporation
    Inventors: Noriyuki Suzuki, Youichi Oohara