Patents by Inventor Toshihiro Imaeda

Toshihiro Imaeda 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).

  • HETEROCYCLIC COMPOUND AND USE THEREOF
    Publication number: 20140080817
    Abstract: Provided is a compound represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof, which has an AMPA (?-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor potentiating action. The compound of the present invention is useful as a prophylactic or therapeutic drug for depression, schizophrenia, Alzheimer's disease or attention deficit hyperactivity disorder (ADHD) and the like.
    Type: Application
    Filed: February 22, 2013
    Publication date: March 20, 2014
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Masakuni KORI, Toshihiro IMAEDA, Shinji NAKAMURA, Masashi TOYOFUKU, Eiji HONDA, Yasutomi ASANO, Osamu UJIKAWA, Michiyo MOCHIZUKI
  • SULFONAMIDE DERIVATIVE AND USE THEREOF
    Publication number: 20140024650
    Abstract: Provided is a compound having an AMPA receptor function enhancing action, and useful as a prophylactic or therapeutic drug for depression, Alzheimer's disease, schizophrenia, attention deficit hyperactivity disorder (ADHD) and the like. A compound represented by the formula (I): wherein each symbol is as defined in the present specification, or a salt thereof.
    Type: Application
    Filed: April 5, 2012
    Publication date: January 23, 2014
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Shoji Fukumoto, Osamu Ujikawa, Shinji Morimoto, Yasutomi Asano, Satoshi Mikami, Norihito Tokunaga, Masakuni Kori, Toshihiro Imaeda, Koichiro Fukuda, Shinji Nakamura, Kouichi Iwanaga
  • Heterocyclic compound and use thereof
    Patent number: 8575154
    Abstract: Provided is a compound represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof, which has an AMPA (?-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor potentiating action. The compound of the present invention is useful as a prophylactic or therapeutic drug for depression, schizophrenia, Alzheimer's disease or attention deficit hyperactivity disorder (ADHD) and the like.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: November 5, 2013
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Masakuni Kori, Toshihiro Imaeda, Shinji Nakamura, Masashi Toyofuku, Eiji Honda, Yasutomi Asano, Osamu Ujikawa, Michiyo Mochizuki
  • HETEROCYCLIC COMPOUND AND USE THEREOF
    Publication number: 20130190291
    Abstract: Provided is a compound represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof, which has an AMPA (?-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor potentiating action. The compound of the present invention is useful as a prophylactic or therapeutic drug for depression, schizophrenia, Alzheimer's disease or attention deficit hyperactivity disorder (ADHD) and the like.
    Type: Application
    Filed: August 9, 2011
    Publication date: July 25, 2013
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Masakuni Kori, Toshihiro Imaeda, Shinji Nakamura, Masashi Toyofuku, Eiji Honda, Yasutomi Asano, Osamu Ujikawa, Michiyo Mochizuki
  • HETEROCYCLIC COMPOUND AND USE THEREOF
    Publication number: 20120077799
    Abstract: Provided is a compound represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof, which has an AMPA (?-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor potentiating action. The compound of the present invention is useful as a prophylactic or therapeutic drug for depression, schizophrenia, Alzheimer's disease or attention deficit hyperactivity disorder (ADHD) and the like.
    Type: Application
    Filed: August 9, 2011
    Publication date: March 29, 2012
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Masakuni KORI, Toshihiro IMAEDA, Shinji NAKAMURA, Masashi TOYOFUKU, Eiji HONDA, Yasutomi ASANO, Osamu UJIKAWA, Michiyo MOCHIZUKI
  • 1,3-BENZOTHIAZINONE DERIVATIVE AND USE THEREOF
    Publication number: 20090029975
    Abstract: A compound represented by the formula (I) or a salt thereof: (I) wherein R1 independently represents a halogen atom, a hydroxy, a nitro, an alkyl, alkenyl or alkynyl which may be halogenated, an alkoxy which may have a substituent, an acyl or an amino which may have a substituent; R2 represents a hydrogen atom or a hydrocarbon group which may have a substituent; R3 represents an electron-attracting group; n is an integer of 0 to 2; and m is an integer of 1 to 6. The compound has a capability of binding to a macrophage migration inhibitory factor (MIF), and is therefore useful as a prophylactic/therapeutic agent for a disease induced by oxidative stress or the like.
    Type: Application
    Filed: June 8, 2006
    Publication date: January 29, 2009
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Masahiro Kajino, Toshihiro Imaeda
  • Nitrogen-containing heterocyclic compounds, their production and use
    Patent number: 6962919
    Abstract: A compound of the formula: wherein one of A and D is N and the other is C, or both are N; B is N or C; m is 0-3; R1, R2 and R3 each is (i) H or (ii) a group bound via C, N, O or S; R4 is a group bound via C; R5 is H or a group bound via C or O; R6 is H or a group bound via C; R7 is a homo- or hetero-cyclic group which may be substituted; or a salt thereof possesses excellent gonadotropin-releasing hormone antagonizing activity, and is useful as a prophylactic or therapeutic agent for sex hormone-dependent diseases, and so forth.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: November 8, 2005
    Assignee: Takeda Pharmaceutical Co., Ltd.
    Inventors: Shuichi Furuya, Toshihiro Imaeda, Satoshi Sasaki
  • Nitrogen-containing heterocyclic compounds, their production and use
    Publication number: 20020103210
    Abstract: A compound of the formula: 1
    Type: Application
    Filed: January 11, 2002
    Publication date: August 1, 2002
    Applicant: TAKEDA CHEMICAL INDUSTRIES, LTD.
    Inventors: Shuichi Furuya, Toshihiro Imaeda, Satoshi Sasaki
  • Nitrogen-containing heterocyclic compounds, their production and use
    Patent number: 6413972
    Abstract: A compound of the formula: wherein one of A and D is N and the other is C, or both are N; B is N or C; m is 0-3; R1, R2 and R3 each is (i) H or (ii) a group bound via C, N, O or S; R4 is a group bound via C; R5 is H or a group bound via C or O; R6 is H or a group bound via C; R7 is a homo- or hetero-cyclic group which may be substituted; or a salt thereof possesses excellent gonadotropin-releasing hormone antagonizing activity, and is useful as a prophylactic or therapeutic agent for sex hormone-dependent diseases, and so forth.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: July 2, 2002
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shuichi Furuya, Toshihiro Imaeda, Satoshi Sasaki
  • Nitrogen-containing heterocyclic compounds, their production and use
    Patent number: 6194419
    Abstract: A compound of the formula: wherein one of A and D is N and the other is C, or both are N; B is N or C; m is 0-3; R1, R2 and R3 each is (i) H or (ii) a group bound via C, N, O or S; R4 is a group bound via C; R5 is H or a group bound via C or O; R6 is H or a group bound via C; R7 is a homo- or hetero-cyclic group which may be substituted; or a salt thereof possesses excellent gonadotropin-releasing hormone antagonizing activity, and is useful as a prophylactic or therapeutic agent for sex hormone-dependent diseases, and so forth.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: February 27, 2001
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shuichi Furuya, Toshihiro Imaeda, Satoshi Sasaki