Patents by Inventor Koji Koyama

Koji Koyama 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).

  • Publication number: 20070191447
    Abstract: A drug having a high affinity for benzodiazepine ?3 receptors and showing curative and preventive effects for anxiety and depression, which comprises as the active ingredient, for example, a compound of the formula (1): wherein R1 and R2 are independently a hydrogen atom, an optionally substituted alkyl group, an optionally substituted aryl group, etc., R3 and R4 are independently a hydrogen atom, an optionally substituted alkyl group, etc., R5, R6, R7 and R8 are independently a hydrogen atom, an optionally substituted alkyl group, an optionally substituted aryl group, etc., X is an oxygen atom, a sulfur atom, NR10, etc. (in which R10 is a hydrogen atom, an optionally substituted alkyl group, etc.
    Type: Application
    Filed: February 18, 2005
    Publication date: August 16, 2007
    Inventors: Toru Kodo, Takayuki Fukaya, Koji Koyama, Shuji Masumoto, Nao Fujibayashi
  • Publication number: 20050065140
    Abstract: There is provided a selective serotonin reuptake inhibitor having affinity for serotonin 1A receptors which comprises a cyclic amine represented by the formula: wherein G represents a formula (2): a prodrug of said cyclic amine, or a pharmaceutically acceptable salt of said cyclic amine or prodrug, as an active ingredient.
    Type: Application
    Filed: December 12, 2002
    Publication date: March 24, 2005
    Inventors: Toru Kodo, Hideki Yagi, Akihito Dan, Shuji Masumoto, Naoya Kinomura, Koji Koyama
  • Patent number: 6844053
    Abstract: An acrylic resin film, a laminate film comprising the acrylic resin film and a thermoplastic resin layer placed on one surface of the acrylic resin film, and an injection molded article using the acrylic resin film are provided. The acrylic resin film laminate film have little white turbidity even if being heated in molding and maintains excellent design properties, and the injection molded article having the acrylic resin film on its surface is excellent in design properties such as color depth.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: January 18, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Koji Koyama, Kazuhiro Yokoo
  • Patent number: 6787560
    Abstract: A serotonin reuptake inhibitor containing a cyclic amine represented by the following formula, a prodrug thereof, or a pharmaceutically acceptable salt of said cyclic amine or prodrug as an active ingredient: wherein R0 is a hydrogen atom, a halogen atom, an alkyl group, a substituted alkyl group, a hydroxyl group, an alkoxy group or the like, R3 is a hydrogen atom or the like, Y is an alkylene group or the like, Z is a hydrogen atom, a cycloalkyl group, an aryl group or the like, n is 1, 2 or 3, and m is 2, 3, 4, 5 or 6.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: September 7, 2004
    Assignee: Sumitomo Pharmaceuticals Company Limited
    Inventors: Toru Kodo, Shuji Masumoto, Koji Koyama, Naoya Kinomura
  • Publication number: 20040081821
    Abstract: There are provided (1) a film, which comprises a methacryl resin layer containing a dispersed rubber particle, wherein at least one surface of said film has a cured layer containing a curable coating, and said film has thickness of 100 to 1800 &mgr;m; and (2) a protecting sheet for a display window of a portable-type information terminal, which comprises said film.
    Type: Application
    Filed: September 29, 2003
    Publication date: April 29, 2004
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kazuhiro Yokoo, Koji Koyama, Yoshimi Nakagawa
  • Patent number: 6692821
    Abstract: The present invention provides an acrylic resin laminated film comprising a soft layer formed of an acrylic resin incorporated with rubber particles and having a flexural modulus of about 1,300 MPa or less, and a hard layer formed of an acrylic resin having a flexural modulus of about 1,800 MPa or more on at least one side of the soft layer, wherein the hard layer has a thickness of about 0.1 to about 30 &mgr;m and a ratio of the thickness of the hard layer to the overall thickness of the laminated film is about 50% or less. This acrylic resin laminated film has moderate surface hardness and flexibility and hence is capable of providing for a molding with less whitening when subjected to a molding or forming process including bending or stretching.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: February 17, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Koji Koyama, Yoshio Tadokoro
  • Publication number: 20030191126
    Abstract: A serotonin reuptake inhibitor containing a cyclic amine represented by the following formula, a prodrug thereof, or a pharmaceutically acceptable salt of said cyclic amine or prodrug as an active ingredient: 1
    Type: Application
    Filed: January 17, 2003
    Publication date: October 9, 2003
    Applicant: SUMITOMO PHARMACEUTICALS COMPANY LIMITED
    Inventors: Toru Kodo, Shuji Masumoto, Koji Koyama, Naoya Kinomura
  • Publication number: 20030125465
    Abstract: An acrylic resin film, a laminate film comprising the acrylic resin film and a thermoplastic resin layer placed on one surface of the acrylic resin film, and an injection molded article using the acrylic resin film are provided. The acrylic resin film laminate film have little white turbidity even if being heated in molding and maintains excellent design properties, and the injection molded article having the acrylic resin film on its surface is excellent in design properties such as color depth.
    Type: Application
    Filed: December 10, 2002
    Publication date: July 3, 2003
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Koyama, Kazuhiro Yokoo
  • Publication number: 20020136853
    Abstract: The present invention provides an acrylic resin laminated film comprising a soft layer formed of an acrylic resin incorporated with rubber particles and having a flexural modulus of about 1,300 MPa or less, and a hard layer formed of an acrylic resin having a flexural modulus of about 1,800 MPa or more on at least one side of the soft layer, wherein the hard layer has a thickness of about 0.1 to about 30 &mgr;m and a ratio of the thickness of the hard layer to the overall thickness of the laminated film is about 50% or less. This acrylic resin laminated film has moderate surface hardness and flexibility and hence is capable of providing for a molding with less whitening when subjected to a molding or forming process including bending or stretching.
    Type: Application
    Filed: January 22, 2002
    Publication date: September 26, 2002
    Inventors: Koji Koyama, Yoshio Tadokoro
  • Patent number: 6444298
    Abstract: The present invention provides an acrylic resin laminated film comprising a layer comprising an acrylic resin composition containing an acrylic resin and acrylic rubber particles and a layer comprising an acrylic resin containing no impact-resistant material, which has excellent flexibility and can maintain transparency even after coloring treatment, and is suitable for uses such as, for example, interior materials of automobiles, exterior materials of domestic electric appliances, construction materials, exterior materials and the like.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: September 3, 2002
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshio Tadokoro, Koji Koyama
  • Patent number: D541000
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: April 17, 2007
    Assignee: Kito Corporation
    Inventors: Desheng Xia, Koji Koyama, Michio Fukasawa