Patents by Inventor Kouji Hayama

Kouji Hayama 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).

  • Edaravone suspension for oral administration
    Patent number: 11957660
    Abstract: An edaravone suspension for human oral administration includes edaravone particles, a dispersant, and water.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Tetsuo Hayama, Tomohiro Takahashi, Tomoyuki Omura, Kouji Hayashi, Munetomo Matsuda, Tadashi Miyazawa
  • Optical information medium
    Patent number: 7374806
    Abstract: An optical information medium having a light transmission layer obtained by curing a composition containing a urethane di(meth)acrylate (A) of the formula (I) and the other urethane di(meth)acrylate (B), and having a tensile elastic modulus of 600 to 1300 MPa at 25° C. and a light transmittance of 80% or more at wavelength of 400 nm (in the formula, R1=an alicyclic diisocyanate residue, R2=an alkylene group or an organic group containing a cycloalkyl group or ester bond, R3=H or methyl group.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: May 20, 2008
    Assignees: TDK Corporation, Mitsubishi Rayon Co., Ltd.
    Inventors: Hideki Hirata, Tsuyoshi Komaki, Tomoki Ushida, Juichi Fujimoto, Kouji Hayama
  • Active energy ray curable composition for coating optical disk and optical disk
    Patent number: 7344768
    Abstract: The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: March 18, 2008
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Juichi Fujimoto, Kouji Hayama, Seiji Nushi, Hiroshi Fukushima
  • Active energy ray curable composition for coating optical disk and optical disk
    Patent number: 7341771
    Abstract: The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: March 11, 2008
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Juichi Fujimoto, Kouji Hayama, Seiji Nushi, Hiroshi Fukushima
  • Active energy ray curable composition for coating optical disk and optical disk
    Patent number: 7132460
    Abstract: The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: November 7, 2006
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Juichi Fujimoto, Kouji Hayama, Seiji Nushi, Hiroshi Fukushima
  • Active energy ray curable composition for coating optical disk and optical disk
    Publication number: 20060166140
    Abstract: The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane(meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane(meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
    Type: Application
    Filed: March 27, 2006
    Publication date: July 27, 2006
    Applicant: Mitsubishi Rayon Co., Limited
    Inventors: Juichi Fujimoto, Kouji Hayama, Seiji Nushi, Hiroshi Fukushima
  • Active energy ray curable composition for coating optical disk and optical disk
    Publication number: 20060167200
    Abstract: The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
    Type: Application
    Filed: March 27, 2006
    Publication date: July 27, 2006
    Applicant: Mitsubishi Rayon Co., Limited
    Inventors: Juichi Fujimoto, Kouji Hayama, Seiji Nushi, Hiroshi Fukushima
  • Optical information medium
    Publication number: 20050118380
    Abstract: An optical information medium having a light transmission layer obtained by curing a composition containing a urethane di(meth)acrylate (A) of the formula (I) and the other urethane di(meth)acrylate (B), and having a tensile elastic modulus of 600 to 1300 MPa at 25° C. and a light transmittance of 80% or more at wavelength of 400 nm (in the formula, R1=an alicyclic diisocyanate residue, R2=an alkylene group or an organic group containing a cycloalkyl group or ester bond, R3=H or methyl group.
    Type: Application
    Filed: March 10, 2003
    Publication date: June 2, 2005
    Inventors: Hideki Hirata, Tsuyoshi Komaki, Tomoki Ushida, Juichi Fujimoto, Kouji Hayama
  • Active energy ray curable composition for coating optical disk and optical disk
    Publication number: 20040013976
    Abstract: The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
    Type: Application
    Filed: May 30, 2003
    Publication date: January 22, 2004
    Inventors: Juichi Fujimoto, Kouji Hayama, Seiji Nushi, Hiroshi Fukushima