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Takashi Hayama
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Tsukuba-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Biarylurea derivatives
Patent number
7,354,946
Issue date
Apr 8, 2008
Banyu Pharmaceutical Co., Ltd.
Takashi Hayama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyrazinone derivatives
Patent number
7,148,224
Issue date
Dec 12, 2006
Banyu Pharmaceutical Co., Ltd.
Takashi Hayama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Biarylurea derivatives
Patent number
6,958,333
Issue date
Oct 25, 2005
Banyu Pharmaceutical Co., Ltd.
Takashi Hayama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyrazinone derivatives
Patent number
6,914,062
Issue date
Jul 5, 2005
Banyu Pharmaceutical Co., Ltd.
Takashi Hayama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted 5-(2,2-difluoro-1,3-benzodioxol-5-yl) cyclopentenopyrid...
Patent number
6,413,979
Issue date
Jul 2, 2002
Banyu Pharmaceutical Co., Ltd.
Takashi Hayama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Endothelin antagonistic heteroaromatic ring-fused cyclopentene deri...
Patent number
5,714,479
Issue date
Feb 3, 1998
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Endothelin antagonistic peptide derivatives
Patent number
5,691,315
Issue date
Nov 25, 1997
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
6,7-dialkoxy-3,4-diydroisoquinolin-8-yl compounds
Patent number
5,498,717
Issue date
Mar 12, 1996
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Endothelin antagonistic substance
Patent number
5,496,928
Issue date
Mar 5, 1996
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Endothelin antagonistic peptide derivatives
Patent number
5,470,833
Issue date
Nov 28, 1995
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for preparing 6,7-dialkoxy-3,4-dihydroisoquinolin-8-ol
Patent number
5,446,164
Issue date
Aug 29, 1995
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Endothelin antagonistic peptide derivatives
Patent number
5,444,152
Issue date
Aug 22, 1995
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Endothelin antagonistic heteroaromatic ring-fused cyclopentene deri...
Patent number
5,389,620
Issue date
Feb 14, 1995
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Aminophosponic acid derivative
Patent number
5,380,921
Issue date
Jan 10, 1995
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Isoquinoline derivatives
Patent number
5,362,736
Issue date
Nov 8, 1994
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Endothelin antagonistic cyclic pentapeptides
Patent number
5,114,918
Issue date
May 19, 1992
Banyu Pharmaceutical Co., Ltd.
Kiyofumi Ishikawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
Biarylurea derivatives
Publication number
20070027147
Publication date
Feb 1, 2007
Takashi Hayama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Novel pyrazinone derivatives
Publication number
20050176719
Publication date
Aug 11, 2005
Takashi Hayama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Novel pyrazinone derivatives
Publication number
20030203907
Publication date
Oct 30, 2003
Takashi Hayama
C07 - ORGANIC CHEMISTRY