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Hitoshi Ohki
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Edogawa-Ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Sulfonamide derivative having coumarin skeleton
Patent number
10,774,087
Issue date
Sep 15, 2020
Daiichi Sankyo Company, Limited
Masahiro Ota
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyridone derivatives
Patent number
8,933,103
Issue date
Jan 13, 2015
Daiichi Sankyo Company, Limited
Hitoshi Ohki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Crystal of a free tricyclic pyrazolopyrimidine derivative
Patent number
8,846,703
Issue date
Sep 30, 2014
Daiichi Sankyo Company, Limited
Yasusi Ueda
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Tricyclic pyrazolopyrimidine derivatives
Patent number
8,445,504
Issue date
May 21, 2013
Daiichi Sankyo Company, Limited
Hitoshi Ohki
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Tricyclic pyrazolopyrimidine derivatives
Patent number
8,236,813
Issue date
Aug 7, 2012
Daiichi Sankyo Company, Limited
Hitoshi Ohki
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Cis-substituted fluoromethylpyrrolidine derivative
Patent number
6,656,952
Issue date
Dec 2, 2003
Daiichi Pharmaceutical Co., Ltd.
Makoto Takemura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tricyclic amine derivatives
Patent number
6,586,604
Issue date
Jul 1, 2003
Daiichi Pharmaceutical Co., Ltd.
Makoto Takemura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyrazole derivatives and salts thereof
Patent number
6,573,377
Issue date
Jun 3, 2003
Daiichi Pharmaceuticals Co., Ltd.
Akio Ejima
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyrazole derivatives
Patent number
6,552,018
Issue date
Apr 22, 2003
Daiichi Pharmaceutical Co., Ltd.
Akio Ejima
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Heterocyclic spiro-derivative
Patent number
6,469,023
Issue date
Oct 22, 2002
Daiichi Pharmaceutical Co., Ltd.
Makoto Takemura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tricyclic amine derivatives
Patent number
6,384,050
Issue date
May 7, 2002
Daiichi Pharmaceutical Co., Ltd.
Makoto Takemura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Cycloalkylaminomethylpyrrolidine derivatives
Patent number
6,194,434
Issue date
Feb 27, 2001
Daiichi Pharmaceutical Co., Ltd.
Makoto Takemura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted aminocycloalkylpyrrolidine derivatives and cis-substitu...
Patent number
6,184,388
Issue date
Feb 6, 2001
Daiichi Pharmaceutical Co., Ltd.
Makoto Takemura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyrazole derivatives
Patent number
6,169,086
Issue date
Jan 2, 2001
Daiichi Pharmaceutical Co., Ltd.
Akio Ejima
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted aminocycloalkylpyrrolidine derivatives and cis-substitu...
Patent number
6,121,285
Issue date
Sep 19, 2000
Daiichi Pharmaceutical Co., Ltd.
Makoto Takemura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyridonecarboxylic acid derivatives substituted by a bicyclic amino...
Patent number
5,849,757
Issue date
Dec 15, 1998
Daiichi Pharmaceutical Co., Ltd.
Makoto Takemura
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
SULFONAMIDE DERIVATIVE HAVING COUMARIN SKELETON
Publication number
20190284198
Publication date
Sep 19, 2019
DAIICHI SANKYO COMPANY, LIMITED
Masahiro Ota
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
CRYSTAL OF A FREE TRICYCLIC PYRAZOLOPYRIMIDINE DERIVATIVE
Publication number
20140371249
Publication date
Dec 18, 2014
DAIICHI SANKYO COMPANY, LIMITED
Yasusi Ueda
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Pyridone Derivatives
Publication number
20130281428
Publication date
Oct 24, 2013
Hitoshi Ohki
C07 - ORGANIC CHEMISTRY
Information
Patent Application
FREE CRYSTAL OF TRICYCLIC PYRAZOLOPYRIMIDINE DERIVATIVE
Publication number
20130211084
Publication date
Aug 15, 2013
DAIICHI SANKYO COMPANY, LIMITED
Yasusi Ueda
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
TRICYCLIC PYRAZOLOPYRIMIDINE DERIVATIVES
Publication number
20120202833
Publication date
Aug 9, 2012
DAIICHI SANKYO COMPANY, LIMITED
Hitoshi Ohki
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
TRICYCLIC PYRAZOLOPYRIMIDINE DERIVATIVES
Publication number
20110071170
Publication date
Mar 24, 2011
DAIICHI SANKYO COMPANY, LIMITED
Hitoshi Ohki
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Pyridobenzoxazine derivative
Publication number
20070191356
Publication date
Aug 16, 2007
Makoto Takemura
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information
Patent Application
Cis-substituted aminocycloalkylpyrrolidine derivatives
Publication number
20020077345
Publication date
Jun 20, 2002
DAIICHI PHARMACEUTICAL CO., LTD.
Makoto Takemura
C07 - ORGANIC CHEMISTRY
Information
Patent Application
CIS-SUBSTITUTED FLUOROMETHYLPYRROLIDINE DERIVATIVE
Publication number
20020072608
Publication date
Jun 13, 2002
MAKOTO TAKEMURA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Tricyclic amine derivatives
Publication number
20010037030
Publication date
Nov 1, 2001
Makoto Takemura
C07 - ORGANIC CHEMISTRY