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Hiroyuki Kaizawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Pyridine derivative
    • Patent number 10,975,091
    • Issue date Apr 13, 2021
    • Astellas Pharma Inc.
    • Kenichi Kawaguchi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Pyridine derivative
    • Patent number 10,421,762
    • Issue date Sep 24, 2019
    • Astellas Pharma Inc.
    • Kenichi Kawaguchi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Pyridine derivative
    • Patent number 10,059,720
    • Issue date Aug 28, 2018
    • Astellas Pharma Inc.
    • Kenichi Kawaguchi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Substituted imidazo[1,5-A]quinoxalin-4-ones are useful for preventi...
    • Patent number 8,901,126
    • Issue date Dec 2, 2014
    • Astellas Pharma Inc.
    • Hiroyuki Kaizawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Pyrazoloquinoline compound
    • Patent number 8,822,448
    • Issue date Sep 2, 2014
    • Astellas Pharma Inc.
    • Hiroyuki Kaizawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Substituted amide compound
    • Patent number 8,815,920
    • Issue date Aug 26, 2014
    • Astellas Pharma Inc.
    • Eiji Kawaminami
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Substituted imidazo[1,5-a]quinoxalin-4-ones as phosphodiesterase 9...
    • Patent number 8,674,096
    • Issue date Mar 18, 2014
    • Astellas Pharma Inc.
    • Hiroyuki Kaizawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Substituted amide compound
    • Patent number 8,669,246
    • Issue date Mar 11, 2014
    • Astellas Pharma Inc.
    • Eiji Kawaminami
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Substituted imidazo[1,5-a]quinoxalin-4(5H)-ones as PDE9 inhibitors
    • Patent number 8,357,688
    • Issue date Jan 22, 2013
    • Astellas Pharma Inc.
    • Hiroyuki Kaizawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fused heteroaryl derivatives
    • Patent number 8,067,586
    • Issue date Nov 29, 2011
    • Astellas Pharma Inc.
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    N-phenyl-(2R,5S)dimethylpiperazine derivative
    • Patent number 7,666,873
    • Issue date Feb 23, 2010
    • Astellas Pharma Inc.
    • Nobuaki Taniguchi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    N-phenyl-(2R,5S) dimethylpiperazine derivative
    • Patent number 7,297,698
    • Issue date Nov 20, 2007
    • Astellas Pharma Inc.
    • Nobuaki Taniguchi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Phenylpyridinecarbonylpiperazinederivative
    • Patent number 7,196,080
    • Issue date Mar 27, 2007
    • Astellas Pharma Inc.
    • Masahiro Iwata
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Fused heteroaryl derivatives
    • Patent number 7,173,029
    • Issue date Feb 6, 2007
    • Astellas Pharma Inc.
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Fused heteroaryl derivatives
    • Patent number 7,037,915
    • Issue date May 2, 2006
    • Astellas Pharma Inc.
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Fused heteroaryl derivatives
    • Patent number 6,838,457
    • Issue date Jan 4, 2005
    • Yamanouchi Pharmaceutical Co., Ltd.
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Fused heteroaryl derivatives
    • Patent number 6,770,641
    • Issue date Aug 3, 2004
    • Yamanouchi Pharmaceutical Co., Ltd.
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Imidazopyridine derivatives
    • Patent number 6,653,320
    • Issue date Nov 25, 2003
    • Yamanouchi Pharmaceutical Co. Ltd.
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Fused heteroaryl derivatives
    • Patent number 6,608,053
    • Issue date Aug 19, 2003
    • Yamanouchi Pharmaceutical Co., Ltd.
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Fused heteroaryl derivatives
    • Patent number 6,608,056
    • Issue date Aug 19, 2003
    • Yamanouchi Pharmaceutical Co., Ltd.
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Imidazopyridine derivatives
    • Patent number 6,403,588
    • Issue date Jun 11, 2002
    • Yamanouchi Pharmaceutical Co., Ltd.
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    PYRIDINE DERIVATIVE
    • Publication number 20200055868
    • Publication date Feb 20, 2020
    • Astellas Pharma Inc.
    • Kenichi KAWAGUCHI
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    PYRIDINE DERIVATIVE
    • Publication number 20180327418
    • Publication date Nov 15, 2018
    • Astellas Pharma Inc.
    • Kenichi KAWAGUCHI
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    PYRIDINE DERIVATIVE
    • Publication number 20170190715
    • Publication date Jul 6, 2017
    • Astellas Pharma Inc.
    • Kenichi KAWAGUCHI
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    QUINOXALINE COMPOUND
    • Publication number 20130296329
    • Publication date Nov 7, 2013
    • Hiroyuki KAIZAWA
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    SUBSTITUTED AMIDE COMPOUND
    • Publication number 20130231320
    • Publication date Sep 5, 2013
    • Astellas Pharma Inc.
    • Eiji Kawaminami
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    PYRAZOLOQUINOLINE COMPOUND
    • Publication number 20130225553
    • Publication date Aug 29, 2013
    • Astellas Pharma Inc.
    • Hiroyuki KAIZAWA
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    QUINOXALINE COMPOUND
    • Publication number 20130085134
    • Publication date Apr 4, 2013
    • Astellas Pharma Inc.
    • Hiroyuki Kaizawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    SUBSTITUTED AMIDE COMPOUND
    • Publication number 20120184521
    • Publication date Jul 19, 2012
    • Astellas Pharma Inc.
    • Eiji Kawaminami
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    QUINOXALINE COMPOUND
    • Publication number 20110319385
    • Publication date Dec 29, 2011
    • Astellas Pharma Inc.
    • Hiroyuki Kaizawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    FUSED HETEROARYL DERIVATIVES
    • Publication number 20100137585
    • Publication date Jun 3, 2010
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    FUSED HETEROARYL DERIVATIVES
    • Publication number 20100137584
    • Publication date Jun 3, 2010
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    N-Phenyl-(2R,5S)Dimethylpiperazine Derivative
    • Publication number 20080214543
    • Publication date Sep 4, 2008
    • Astellas Pharma Inc.
    • Nobuaki Taniguchi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    Fused heteroaryl derivatives
    • Publication number 20070037805
    • Publication date Feb 15, 2007
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Fused heterolaryl derivatives
    • Publication number 20060058321
    • Publication date Mar 16, 2006
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    N-phenyl-(2r,5s) dimethylpiperadine derivative
    • Publication number 20050261303
    • Publication date Nov 24, 2005
    • Nobuaki Taniguchi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    Fused heteroaryl derivatives
    • Publication number 20050014771
    • Publication date Jan 20, 2005
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Phenlypyridine carbonyl piperazine derivative
    • Publication number 20040192701
    • Publication date Sep 30, 2004
    • Masahiro Iwata
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Fused heteroaryl derivatives
    • Publication number 20040009978
    • Publication date Jan 15, 2004
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Fused heteroaryl derivatives
    • Publication number 20030236271
    • Publication date Dec 25, 2003
    • Masahiko Hayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Fused heteroaryl derivatives
    • Publication number 20020151544
    • Publication date Oct 17, 2002
    • Masahiko Hayakawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    Imidazopyridine derivatives
    • Publication number 20020151549
    • Publication date Oct 17, 2002
    • Masahiko Hayakawa
    • C07 - ORGANIC CHEMISTRY