Patents by Inventor Takashi Hashihayata

Takashi Hashihayata 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: 10689327
    Abstract: Provided is an amino acid derivative prodrug represented by general formula (I-A) that is a prodrug form of an amino acid derivative which is a group 2 metabotropic glutamate receptor antagonist, or a pharmaceutically acceptable salt thereof. More specifically, provided is an amino acid derivative prodrug represented by general formula (I-A) that is a preventive or therapeutic drug for mood disorders (including depression and bipolar disorder), anxiety disorder, cognitive disorders, developmental disorders, Alzheimer's disease, Parkinson's disease, movement disorders associated with muscular rigidity, sleep disorders, Huntington's chorea, eating disorders, drug dependence, epilepsy, brain infarction, cerebral ischemia, cerebral insufficiency, cerebral edema, spinal cord disorders, head trauma, inflammation and immune-related diseases, and so on.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: June 23, 2020
    Assignee: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Norikazu Otake, Takashi Hashihayata, Yohei Matsuda, Seiji Masuda, Yuko Yamauchi
  • Publication number: 20190337887
    Abstract: Provided is an amino acid derivative prodrug represented by general formula (I-A) that is a prodrug form of an amino acid derivative which is a group 2 metabotropic glutamate receptor antagonist, or a pharmaceutically acceptable salt thereof. More specifically, provided is an amino acid derivative prodrug represented by general formula (I-A) that is a preventive or therapeutic drug for mood disorders (including depression and bipolar disorder), anxiety disorder, cognitive disorders, developmental disorders, Alzheimer's disease, Parkinson's disease, movement disorders associated with muscular rigidity, sleep disorders, Huntington's chorea, eating disorders, drug dependence, epilepsy, brain infarction, cerebral ischemia, cerebral insufficiency, cerebral edema, spinal cord disorders, head trauma, inflammation and immune-related diseases, and so on.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Applicant: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Norikazu OTAKE, Takashi HASHIHAYATA, Yohei MATSUDA, Seiji MASUDA, Yuko YAMAUCHI
  • Patent number: 10464884
    Abstract: Provided is an amino acid derivative prodrug represented by general formula (I-A) that is a prodrug form of an amino acid derivative which is a group 2 metabotropic glutamate receptor antagonist, or a pharmaceutically acceptable salt thereof. More specifically, provided is an amino acid derivative prodrug represented by general formula (I-A) that is a preventive or therapeutic drug for mood disorders (including depression and bipolar disorder), anxiety disorder, cognitive disorders, developmental disorders, Alzheimer's disease, Parkinson's disease, movement disorders associated with muscular rigidity, sleep disorders, Huntington's chorea, eating disorders, drug dependence, epilepsy, brain infarction, cerebral ischemia, cerebral insufficiency, cerebral edema, spinal cord disorders, head trauma, inflammation and immune-related diseases, and so on.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: November 5, 2019
    Assignee: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Norikazu Otake, Takashi Hashihayata, Yohei Matsuda, Seiji Masuda, Yuko Yamauchi
  • Publication number: 20190047943
    Abstract: Provided is an amino acid derivative prodrug represented by general formula (I-A) that is a prodrug form of an amino acid derivative which is a group 2 metabotropic glutamate receptor antagonist, or a pharmaceutically acceptable salt thereof. More specifically, provided is an amino acid derivative prodrug represented by general formula (I-A) that is a preventive or therapeutic drug for mood disorders (including depression and bipolar disorder), anxiety disorder, cognitive disorders, developmental disorders, Alzheimer's disease, Parkinson's disease, movement disorders associated with muscular rigidity, sleep disorders, Huntington's chorea, eating disorders, drug dependence, epilepsy, brain infarction, cerebral ischemia, cerebral insufficiency, cerebral edema, spinal cord disorders, head trauma, inflammation and immune-related diseases, and so on.
    Type: Application
    Filed: April 18, 2017
    Publication date: February 14, 2019
    Applicant: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Norikazu OTAKE, Takashi HASHIHAYATA, Yohei MATSUDA, Seiji MASUDA, Yuko YAMAUCHI
  • Patent number: 9428483
    Abstract: Provided are a fluorine-containing amino acid prodrug represented by general formula (I) that makes a fluorine-containing amino acid which is a group 2 metabotropic glutamate receptor agonist into a prodrug, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: August 30, 2016
    Assignee: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Takashi Hashihayata, Norikazu Otake, Naoki Miyakoshi, Kazunari Sakagami
  • Publication number: 20150141669
    Abstract: Provided are a fluorine-containing amino acid prodrug represented by general formula (I) that makes a fluorine-containing amino acid which is a group 2 metabotropic glutamate receptor agonist into a prodrug, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 31, 2013
    Publication date: May 21, 2015
    Applicant: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Takashi Hashihayata, Norikazu Otake, Naoki Miyakoshi, Kazunari Sakagami
  • Patent number: 8202877
    Abstract: The present application relates to novel aminopyrimidinamides, to processes for their preparation and to their use for controlling animal pests, especially arthropods, in particular insects.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: June 19, 2012
    Assignee: Bayer CropScience AG
    Inventors: Simon Maechling, Arnd Voerste, Eva-Maria Franken, Angela Becker, Ulrich Görgens, Mazen Es-Sayed, Markus Heil, Graham Holmwood, Johannes-Rudolf Jansen, Otto Schallner, Ulrich Ebbinghaus-Kintscher, Peter Lümmen, Silvia Cerezo-Galvez, Sachio Kudo, Takashi Hashihayata, Eiichi Shimojo, Teruyuki Ichihara, Masashi Ataka, Katsuhiko Shibuya
  • Publication number: 20120071496
    Abstract: The present application relates to novel aminopyrimidinamides, to processes for their preparation and to their use for controlling animal pests, especially arthropods, in particular insects.
    Type: Application
    Filed: February 5, 2010
    Publication date: March 22, 2012
    Applicant: Bayer CropScience AG
    Inventors: Simon Maechling, Arnd Voerste, Eva-Maria Franken, Angela Becker, Ulrich Görgens, Mazen Es-Sayed, Markus Heil, Graham Holmwood, Johannes-Rudolf Jansen, Otto Schallner, Ulrich Ebbinghaus-Kintscher, Peter Lümmen, Silvia Cerezo-Galvez, Sachio Kudo, Takashi Hashihayata, Eiichi Shimojo, Teruyuki Ichihara, Masashi Ataka, Katsuhiko Shibuya
  • Publication number: 20110288090
    Abstract: The instant invention provides for compounds that inhibit Akt activity. In particular, the compounds disclosed selectively inhibit one or two of the Akt isoforms. The invention also provides for compositions comprising such inhibitory compounds and methods of inhibiting Akt activity by administering the compound to a patient in need of treatment of cancer.
    Type: Application
    Filed: January 25, 2010
    Publication date: November 24, 2011
    Inventors: Donna J. Armstrong, Yasuhiro Goto, Takashi Hashihayata, Tetsuya Kato, Michael J. Kelly, III, Mark E. Layton, Craig W. Lindsley, Yoshio Ogino, Yu Onozaki, Kenvin J. Rodzinak, Michael A. Rossi, Philip E. Sanderson, Jiabing Wang, Melissa M. Yaroschak
  • Patent number: 7977336
    Abstract: The present invention relates to a compound represented by Formula [I]: or a pharmaceutically acceptable salt or ester thereof, wherein R1 and R2, which may be the same or different, are each a hydrogen atom, a lower alkyl group, a cycloalkyl group, or the like; R3 and R4, which may be the same or different, are each a hydrogen atom, a lower alkyl group, NRaRb, a phenyl group, a lower alkyl group substituted with a phenyl group, a 4-to 7-membered aliphatic heterocyclic group, a lower alkyl group substituted with a 4- to 7-membered aliphatic heterocyclic group, a 5-or 6-membered aromatic heterocyclic group, a lower alkyl group substituted with a 5-or 6-membered aromatic heterocyclic group, or the like; and R5 is a hydrogen atom, a cyano group, a halogen atom, or a lower alkyl group.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: July 12, 2011
    Assignee: Banyu Pharmaceutical Co. Ltd
    Inventors: Takashi Hashihayata, Mikako Kawamura, Morihiro Mitsuya, Yoshiyuki Sato
  • Publication number: 20100298267
    Abstract: The present application relates to novel aminopyrimidinamides, to processes for their preparation and to their use for controlling animal pests, especially arthropods, in particular insects.
    Type: Application
    Filed: February 17, 2010
    Publication date: November 25, 2010
    Applicant: Bayer CropScience AG
    Inventors: Simon MAECHLING, Arnd Voerste, Eva-Maria Franken, Angela Becker, Ulrich Görgens, Mazen Es-Sayed, Markus Heil, Graham Holmwood, Johannes-Rudolf Jansen, Otto Schallner, Ulrich Ebbinghaus-Kintscher, Peter Lümmen, Silvia Cerezo-Galvez, Sachio Kudo, Takashi Hashihayata, Eiichi Shimojo, Teruyuki Ichihara, Masashi Ataka, Katsuhiko Shibuya
  • Patent number: 7718801
    Abstract: The present invention relates to a compound represented by Formula [I] or a pharmaceutically acceptable salt or ester thereof: wherein: X1, X2, X3, and X4, which may be identical or different, are each C or N, provided that none to two of X1, X2, X3, and X4 is/are N; Y is CH or N; R1, R1?, R2, R2?, R3, R3?, R4, and R4?, which may be identical or different, are each a hydrogen atom, a lower alkyl group, or the like; R5 is a hydrogen atom or a methyl group; R6 and R7, which may be identical or different, are each a hydrogen atom, a lower alkyl group, or the like; R8 and R8?, which may be identical or different, are each a hydrogen atom, a lower alkyl group, or the like; R9 is an aryl group or a heteroaryl group which may be substituted; and n is an integer from 1 to 3, and a PLK1 inhibitor or an anticancer agent containing the same.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: May 18, 2010
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Mikako Kawamura, Takashi Hashihayata, Satoshi Sunami, Tetsuya Sugimoto, Fuyuki Yamamoto, Yoshiyuki Sato, Kaori Kamijo, Morihiro Mitsuya, Yoshikazu Iwasawa, Hideya Komatani
  • Patent number: 7709475
    Abstract: The present invention relates to a compound represented by Formula [I]: wherein X is O, S, NH or CH2; Y1, Y2, Y3, Y4 and Y5, which may be identical or different, are each CH or N; however, at least one of Y1, Y2, Y3, Y4 and Y5 is N; Z1 and Z2, which may be identical or different, are each CH or N; n is an integer from 1 to 3; R1 is a C3-C8 cycloalkyl group, a C6-C10 aryl group, an aliphatic heterocyclic ring or an aromatic heterocyclic ring, or a bicyclic aliphatic saturated hydrocarbon group; R2 and R3, which may be identical or different, are each a hydrogen atom, a lower alkyl group, a lower alkenyl group, a C3-C8 cycloalkyl group, a C6-C10 aryl group, an aromatic heterocyclic ring, or the like; and R4 is a hydrogen atom, a lower alkyl group, a C3-C6 cycloalkyl group or the like, or a pharmaceutically acceptable salt or ester thereof, and a selective inhibitor against Cdk4 and/or Cdk6 or an anticancer agent containing the compound or a pharmaceutically acceptable salt or ester thereof.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: May 4, 2010
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Yoshikazu Iwasawa, Jun Shibata, Tadashi Shimamura, Hideki Kurihara, Takashi Mita, Nobuhiko Kawanishi, Takashi Hashihayata, Mikako Kawamura, Takeshi Sagara, Sachie Arai, Hiroshi Hirai
  • Publication number: 20080305081
    Abstract: The present invention relates to a compound represented by Formula [I]: or a pharmaceutically acceptable salt or ester thereof, wherein R1 and R2, which may be the same or different, are each a hydrogen atom, a lower alkyl group, a cycloalkyl group, or the like; R3 and R4, which may be the same or different, are each a hydrogen atom, a lower alkyl group, NRaRb, a phenyl group, a lower alkyl group substituted with a phenyl group, a 4- to 7-membered aliphatic heterocyclic group, a lower alkyl group substituted with a 4- to 7-membered aliphatic heterocyclic group, a 5- or 6-membered aromatic heterocyclic group, a lower alkyl group substituted with a 5- or 6-membered aromatic heterocyclic group, or the like; and R5 is a hydrogen atom, a cyano group, a halogen atom, or a lower alkyl group.
    Type: Application
    Filed: December 18, 2007
    Publication date: December 11, 2008
    Inventors: Takashi Hashihayata, Mikako Kawamura, Morihiro Mitsuya, Yoshiyuki Sato
  • Publication number: 20080081811
    Abstract: The present invention relates to a compound represented by Formula [I]: wherein X is O, S, NH or CH2; Y1, Y2, Y3, Y4 and Y5, which may be identical or different, are each CH or N; however, at least one of Y1, Y2, Y3, Y4 and Y5 is N; Z1 and Z2, which may be identical or different, are each CH or N; n is an integer from 1 to 3; R1 is a C3-C8 cycloalkyl group, a C6-C10 aryl group, an aliphatic heterocyclic ring or an aromatic heterocyclic ring, or a bicyclic aliphatic saturated hydrocarbon group; R2 and R3, which may be identical or different, are each a hydrogen atom, a lower alkyl group, a lower alkenyl group, a C3-C8 cycloalkyl group, a C6-C10 aryl group, an aromatic heterocyclic ring, or the like; and R4 is a hydrogen atom, a lower alkyl group, a C3-C6 cycloalkyl group or the like, or a pharmaceutically acceptable salt or ester thereof, and a selective inhibitor against Cdk4 and/or Cdk6 or an anticancer agent containing the compound or a pharmaceutically acceptable salt or ester thereof.
    Type: Application
    Filed: May 19, 2005
    Publication date: April 3, 2008
    Applicant: BANYU PHARMACEUTICAL CO., LTD
    Inventors: Yoshikazu Iwasawa, Jun Shibata, Tadashi Shimamura, Hideki Kurihara, Takashi Mita, Nobuhiko Kawanishi, Takashi Hashihayata, Mikako Kawamura, Takeshi Sagara, Sachie Arai, Hiroshi Hirai
  • Publication number: 20080070894
    Abstract: The present invention relates to a compound represented by Formula [I] or a pharmaceutically acceptable salt or ester thereof: wherein: X1, X2, X3, and X4, which may be identical or different, are each C or N, provided that none to two of X1, X2, X3, and X4 is/are N; Y is CH or N; R1, R1?, R2, R2?, R3, R3?, R4, and R4?, which may be identical or different, are each a hydrogen atom, a lower alkyl group, or the like; R5 is a hydrogen atom or a methyl group; R6 and R7, which may be identical or different, are each a hydrogen atom, a lower alkyl group, or the like; R8 and R8?, which may be identical or different, are each a hydrogen atom, a lower alkyl group, or the like; R9 is an aryl group or a heteroaryl group which may be substituted; and n is an integer from 1 to 3, and a PLK1 inhibitor or an anticancer agent containing the same.
    Type: Application
    Filed: August 30, 2005
    Publication date: March 20, 2008
    Inventors: Mikako Kawamura, Takashi Hashihayata, Satoshi Sunami, Tetsuya Sugimoto, Fuyuki Yamamoto, Yoshiyuki Sato, Kaori Kamijo, Morihiro Mitsuya, Yoshikazu Iwasawa, Hideya Komatani