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Takenori Ishizawa
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Shizuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Hyaluronic acid-methotrexate conjugate
Patent number
8,088,916
Issue date
Jan 3, 2012
Denki Kagaku Kogyo Kabushiki Kaisha
Hitoshi Ikeya
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Hyaluronic acid-methotrexate conjugate
Patent number
7,807,675
Issue date
Oct 5, 2010
Denki Kagaku Kogyo Kabushiki Kaisha
Hitoshi Ikeya
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Indole derivative having heterocycle and mono- or diazaindole deriv...
Patent number
7,612,070
Issue date
Nov 3, 2009
CHUGAI SEIYAKU KABUSHIKI KAISHA
Hiroharu Matsuoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Indole derivative having heterocycle and mono- or diazaindole deriv...
Patent number
6,875,770
Issue date
Apr 5, 2005
CHUGAI SEIYAKU KABUSHIKI KAISHA
Hiroharu Matsuoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Heterocyclic indole derivatives and mono- or diazaindole derivatives
Patent number
6,673,797
Issue date
Jan 6, 2004
CHUGAI SEIYAKU KABUSHIKI KAISHA
Hiroharu Matsuoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Processes for the preparation of 4-substituted benzopyran derivatives
Patent number
6,455,708
Issue date
Sep 24, 2002
CHUGAI SEIYAKU KABUSHIKI KAISHA
Yukio Suzuki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzopyran and benzoxazine derivatives
Patent number
5,977,167
Issue date
Nov 2, 1999
Chugai Seiyaku Kabushiki Kaisha
Hiroshi Koga
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzopyran derivatives
Patent number
5,874,446
Issue date
Feb 23, 1999
Chugai Seiyaku Kabushiki Kaisha
Hiroshi Koga
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-(2-cyanoethyl)-6-fluoroalkyl-2h-1-benzopyran derivatives
Patent number
5,646,310
Issue date
Jul 8, 1997
Chugai Seiyaku Kabushiki Kaisha
Hiroshi Koga
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzopyran derivatives
Patent number
5,614,633
Issue date
Mar 25, 1997
Chugai Seiyaku Kabushiki Kaisha
Hiroshi Koga
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
O-SUBSTITUTED SERINE DERIVATIVE PRODUCTION METHOD
Publication number
20220017456
Publication date
Jan 20, 2022
Chugai SeiYaku Kabushiki Kaisha
Takenori ISHIZAWA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Hyaluronic Acid-Methotrexate Conjugate
Publication number
20090093414
Publication date
Apr 9, 2009
Denki Kagaku Kogyo Kabushiki Kaisha
Hitoshi Ikeya
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Hyaluronic Acid-Methotrexate Conjugate
Publication number
20070197465
Publication date
Aug 23, 2007
Denki Kagaku Kabushiki Kaisha
Hitoshi Ikeya
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Indole derivative having heterocycle and mono- or diazaindole deriv...
Publication number
20050137202
Publication date
Jun 23, 2005
Chugai SeiYaku Kabushiki Kaisha
Hiroharu Matsuoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Indole derivative having heterocycle and mono- or diazaindole deriv...
Publication number
20040067964
Publication date
Apr 8, 2004
Chugai SeiYaku Kabushiki Kaisha
Hiroharu Matsuoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Processes for producing 4-substituted benzopyran derivatives
Publication number
20030065189
Publication date
Apr 3, 2003
Chugai SeiYaku Kabushiki Kaisha
Yukio Suzuki
C07 - ORGANIC CHEMISTRY