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Makoto Oka
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Ibaraki, JP
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last 30 patents
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Patent Grant
2-aryl-8-oxodihydropurine derivative, process for the producing the...
Patent number
6,372,740
Issue date
Apr 16, 2002
Dainippon Pharmaceutical Co., Ltd.
Teruya Murata
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Intermediates for 5-substituted-3-oxadiazolyl-1,6-Naphthyridin-2(1H...
Patent number
6,277,993
Issue date
Aug 21, 2001
Dainippon Pharmaceutical Co., Ltd.
Kazunori Ohno
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
5-substituted-3-oxadiazolyl-1,6-naphthyridin-2(1H)-one derivatives
Patent number
6,172,079
Issue date
Jan 9, 2001
Dainippon Pharmaceutical Co., Ltd.
Kazunori Ohno
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Acetamide derivative, process for preparing the same, and a pharmac...
Patent number
5,972,946
Issue date
Oct 26, 1999
Dainippon Pharmaceutical Co., Ltd.
Teruya Murata
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Intermediates for 3-oxadiazoly-1,6-naphthyridine derivatives
Patent number
5,424,433
Issue date
Jun 13, 1995
Dainippon Pharmaceutical Co., Ltd.
Kazunori Ohno
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production on 3-oxadiazolyl-1,6-naphthyridine derivatives
Patent number
5,424,434
Issue date
Jun 13, 1995
Dainippon Pharmaceutical Co., Ltd.
Kazunori Ohno
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-oxadiazolyl-1,6-naphthyridine derivatives
Patent number
5,367,078
Issue date
Nov 22, 1994
Dainippon Pharmaceutical Co., Ltd.
Kazunori Ohno
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Medicament for treating cerebral insufficiency diseases, novel 2-(1...
Patent number
5,185,338
Issue date
Feb 9, 1993
Dainippon Pharmaceutical Co., Ltd.
Katsuhiko Hino
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Medicament for treating cerebral insufficiency diseases, novel 2-(1...
Patent number
5,041,443
Issue date
Aug 20, 1991
Dainippon Pharmaceutical Co., Ltd.
Katsuhiko Hino
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
2-(1-Piperazinyl)-4-phenylcycloalkanopyridine derivatives, processe...
Patent number
5,021,421
Issue date
Jun 4, 1991
Dainippon Pharmaceutical Co., Ltd.
Katsuhiko Hino
C07 - ORGANIC CHEMISTRY