Patents by Inventor Yousuke Toujo

Yousuke Toujo 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: 20190025320
    Abstract: The apparatus for analyzing a disease sample according to the present invention includes: a member for separating and quantitatively determining an amino acid stereoisomer in a biological material from a subject; a member for obtaining a disease state index value through a calculation by substituting the amount of the amino acid stereoisomer into a discriminant equation; and a member for outputting disease state information on the subject on the basis of the disease state index value. The method for analyzing a disease sample according to the present invention includes: a step of measuring the amount of amino acid stereoisomers in a biological material from a subject; a step of obtaining a disease state index value through a calculation by substituting the amount of the amino acid stereoisomers into a discriminant equation; and the like.
    Type: Application
    Filed: September 21, 2018
    Publication date: January 24, 2019
    Applicant: Shiseido Company, Ltd.
    Inventors: Kenji Hamase, Yousuke Toujo, Masashi Mita, Chieko Mizumoto
  • Publication number: 20160367910
    Abstract: The object of the present invention is to provide a packing material and a separation method that manifest excellent hydrophilic interactions. The present invention provides a packing material for hydrophilic interaction chromatography consisting of a modified support treated with the surface modifier represented by the following formula (6) or (7). (In this formula, m denotes 2-6 and n denotes 1-4. X1, X2, and X3, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group.
    Type: Application
    Filed: September 6, 2016
    Publication date: December 22, 2016
    Applicant: Shiseido Company, Ltd.
    Inventors: Taketoshi KANDA, Yasuo IGARASHI, Kenichi SAKUMA, Yousuke TOUJO
  • Patent number: 9266826
    Abstract: An embodiment of the present invention is a separating agent wherein a group represented by a chemical formula of: or a group represented by a chemical formula of: is introduced on a surface thereof.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: February 23, 2016
    Assignees: SHISEIDO COMPANY, LTD., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Kenji Hamase, Masashi Mita, Yousuke Toujo, Yukimitsu Suda
  • Publication number: 20150079623
    Abstract: The apparatus for analyzing a disease sample according to the present invention includes: a member for separating and quantitatively determining an amino acid stereoisomer in a biological material from a subject; a member for obtaining a disease state index value through a calculation by substituting the amount of the amino acid stereoisomer into a discriminant equation; and a member for outputting disease state information on the subject on the basis of the disease state index value. The method for analyzing a disease sample according to the present invention includes: a step of measuring the amount of amino acid stereoisomers in a biological material from a subject; a step of obtaining a disease state index value through a calculation by substituting the amount of the amino acid stereoisomers into a discriminant equation; and the like.
    Type: Application
    Filed: March 18, 2013
    Publication date: March 19, 2015
    Inventors: Kenji Hamase, Yousuke Toujo, Masashi Mita, Chieko Mizumoto
  • Publication number: 20140378705
    Abstract: An embodiment of the present invention is a separating agent wherein a group represented by a chemical formula of: or a group represented by a chemical formula of: is introduced on a surface thereof.
    Type: Application
    Filed: January 31, 2013
    Publication date: December 25, 2014
    Inventors: Kenji Hamase, Masashi Mita, Yousuke Toujo, Yukimitsu Suda
  • Patent number: 8673151
    Abstract: A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a material having amino groups with a chemical compound containing an aldehyde derivative obtained by the oxidative ring-opening reaction of glycerophosphorylcholine. The method of the present invention provides various materials such as medical materials having superior biocompatibility and hydrophilicity.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: March 18, 2014
    Assignee: Shiseido Company, Ltd.
    Inventors: Kazuyuki Miyazawa, Taketoshi Kanda, Yousuke Toujo, Aya Ohkubo, Osamu Shirota, Kenichi Sakuma, Masayoshi Wada
  • Patent number: 8592642
    Abstract: Disclosed is an evaluation method which can rapidly discriminate a Dao?/? homozygote from a large number of animals produced in a mating experiment between a DAO enzyme deficient mouse and other disease model mice, to rapidly perform a quantitative measurement of the D-amino acids contained in a large number of samples. The invention provides a method for evaluating the effect of a test condition on a mouse tissue, or cultured tissue cells derived from the tissue. The method comprises the steps of: providing a Dao1?/? mouse or the like; exposing the tissue from the Dao1?/? mouse or the like, to the test condition; and analyzing the effect of exposing the tissue from the Dao1?/? mouse or the like, to the test condition.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: November 26, 2013
    Assignees: Kyushu University, National University Corporation, Shiseido Company, Ltd.
    Inventors: Kenji Hamase, Kiyoshi Zaitsu, Masashi Mita, Yutaka Ashida, Yousuke Toujo
  • Patent number: 8426627
    Abstract: A phosphorylcholine group-containing chemical compound represented by the following formula (1): wherein, m denotes 2-6 and n denotes 1-4, X1, X2, and X3, are independent of each other, and denote a methoxy group, ethoxy group, or halogen; up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group: R is a structure represented by the following formula (2) (the chemical compound of formula (1) in the structure of formula (2) being expressed as A-R—B): A-(CH2)L—B??(2) wherein, in formula formulas (2), L is 1-6.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: April 23, 2013
    Assignee: Shiseido Company, Ltd.
    Inventors: Yousuke Toujo, Kazuyuki Miyazawa, Taketoshi Kanda, Hiroshi Kutsuna, Kenichi Sakuma, Masayoshi Wada, Yukimitsu Suda
  • Publication number: 20120205316
    Abstract: The object of the present invention is to provide a packing material and a separation method that manifest excellent hydrophilic interactions. The present invention provides a packing material for hydrophilic interaction chromatography consisting of a modified support treated with the surface modifier represented by the following formula (6) or (7). (In this formula, m denotes 2-6 and n denotes 1-4. X1, X2, and X3, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 16, 2012
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Taketoshi Kanda, Yasuo Igarashi, Kenichi Sakuma, Yousuke Toujo
  • Publication number: 20110217707
    Abstract: Disclosed is an evaluation method which can rapidly discriminate a Dao?/? homozygote from a large number of animals produced in a mating experiment between a DAO enzyme deficient mouse and other disease model mice, to rapidly perform a quantitative measurement of the D-amino acids contained in a large number of samples. The invention provides a method for evaluating the effect of a test condition on a mouse tissue, or cultured tissue cells derived from the tissue. The method comprises the steps of: providing a Dao1?/? mouse or the like; exposing the tissue from the Dao1?/? mouse or the like, to the test condition; and analyzing the effect of exposing the tissue from the Dao1?/? mouse or the like, to the test condition.
    Type: Application
    Filed: July 31, 2009
    Publication date: September 8, 2011
    Applicants: Kyushu University, National University Corporation, Shiseido Company Ltd
    Inventors: Kenji Hamase, Kiyoshi Zaitsu, Masashi Mita, Yutaka Ashida, Yousuke Toujo
  • Publication number: 20110130583
    Abstract: A phosphorylcholine group-containing chemical compound represented by the following formula (1). In this formula, m denotes 2-6 and n denotes 1-4. X1, X2, and X3, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group. R is one of the structures in the following formulas (2)-(4) (the chemical compound of formula (1) in the structures of the following formulas (2)-(4) is expressed as A-R—B). In formulas (2)-(4), L is 1-6, P is 1-3. Also a surface modifier consisting of the aforementioned phosphorylcholine group-containing chemical compound, modified powder treated with said surface modifier, a chromatography packing consisting of a modified carrier treated with said surface modifier, a filter treated with said surface modifier, and a glass device treated with said surface modifier.
    Type: Application
    Filed: November 29, 2010
    Publication date: June 2, 2011
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Yousuke Toujo, Kazuyuki Miyazawa, Taketoshi Kanda, Hiroshi Kutsuna, Kenichi Sakuma, Masayoshi Wada, Yukimitsu Suda
  • Publication number: 20110100915
    Abstract: The object of the present invention is to provide a packing material and a separation method that manifest excellent hydrophilic interactions. The present invention provides a packing material for hydrophilic interaction chromatography consisting of a modified support treated with the surface modifier represented by the following formula (6) or (7). (In this formula, m denotes 2-6 and n denotes 1-4. X1, X2, and X3, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group.
    Type: Application
    Filed: June 4, 2009
    Publication date: May 5, 2011
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Taketoshi Kanda, Yasuo Igarashi, Kenichi Sakuma, Yousuke Toujo
  • Patent number: 7906670
    Abstract: A phosphorylcholine group-containing chemical compound represented by the following formula (1). In this formula, m denotes 2-6 and n denotes 1-4. X1, X2, and X3, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group. R is one of the structures in the following formulas (2)-(4) (the chemical compound of formula (1) in the structures of the following formulas (2)-(4) is expressed as A-R—B). In formulas (2)-(4), L is 1-6, P is 1-3. Also a surface modifier consisting of the aforementioned phosphorylcholine group-containing chemical compound, modified powder treated with said surface modifier, a chromatography packing consisting of a modified carrier treated with said surface modifier, a filter treated with said surface modifier, and a glass device treated with said surface modifier.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: March 15, 2011
    Assignee: Shiseido Co., Ltd.
    Inventors: Yousuke Toujo, Kazuyuki Miyazawa, Taketoshi Kanda, Hiroshi Kutsuna, Kenichi Sakuma, Masayoshi Wada, Yukimitsu Suda
  • Publication number: 20100285252
    Abstract: A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a material having amino groups with a chemical compound containing an aldehyde derivative obtained by the oxidative ring-opening reaction of glycerophosphorylcholine. The method of the present invention provides various materials such as medical materials having superior biocompatibility and hydrophilicity.
    Type: Application
    Filed: June 24, 2009
    Publication date: November 11, 2010
    Applicant: Shiseido Company, Ltd.
    Inventors: Kazuyuki Miyazawa, Taketoshi Kanda, Yousuke Toujo, Aya Ohkubo, Osamu Shirota, Kenichi Sakuma, Masayoshi Wada
  • Patent number: 7560023
    Abstract: A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a material having amino groups with a chemical compound containing an aldehyde derivative obtained by the oxidative ring-opening reaction of glycerophosphorylcholine. The method of the present invention provides various materials such as medical materials having superior biocompatibility and hydrophilicity.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: July 14, 2009
    Assignee: Shiseido Company, Ltd.
    Inventors: Kazuyuki Miyazawa, Taketoshi Kanda, Yousuke Toujo, Aya Ohkubo, Osamu Shirota, Kenichi Sakuma, Masayoshi Wada
  • Publication number: 20080214855
    Abstract: A phosphorylcholine group-containing chemical compound represented by the following formula (1). In this formula, m denotes 2-6 and n denotes 1-4. X1, X2, and X3, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X1, X2, and X3 can be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group. R is one of the structures in the following formulas (2)-(4) (the chemical compound of formula (1) in the structures of the following formulas (2)-(4) is expressed as A-R—B). In formulas (2)-(4), L is 1-6, P is 1-3. Also a surface modifier consisting of the aforementioned phosphorylcholine group-containing chemical compound, modified powder treated with said surface modifier, a chromatography packing consisting of a modified carrier treated with said surface modifier, a filter treated with said surface modifier, and a glass device treated with said surface modifier.
    Type: Application
    Filed: December 1, 2004
    Publication date: September 4, 2008
    Inventors: Yousuke Toujo, Kazuyuki Miyazawa, Taketoshi Kanda, Hiroshi Kutsuna, Kenichi Sakuma, Masayoshi Wada, Yukimitsu Suda
  • Publication number: 20060060533
    Abstract: A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a material having amino groups with a chemical compound containing an aldehyde derivative obtained by the oxidative ring-opening reaction of glycerophosphorylcholine. The method of the present invention provides various materials such as medical materials having superior biocompatibility and hydrophilicity.
    Type: Application
    Filed: November 20, 2003
    Publication date: March 23, 2006
    Inventors: Kazuyuki Miyazawa, Taketoshi Kanda, Yousuke Toujo, Aya Ohkubo, Osamu Shirota, Kenichi Sukuma, Masayoshi Wada