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Yutaka Kameyama
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Tokushima-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing 6-hydroxyethylpenam compound
Patent number
8,293,893
Issue date
Oct 23, 2012
Otsuka Chemical Co., Ltd.
Hideo Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for production of 3-alkenylcephem compounds
Patent number
7,893,254
Issue date
Feb 22, 2011
Otsuka Chemical Co., Ltd.
Yoichi Nishioka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-alkenylcephem compounds and process for production thereof
Patent number
7,759,483
Issue date
Jul 20, 2010
Otsuka Chemical Co., Ltd.
Yoichi Nishioka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Penicillin crystals and process for producing the same
Patent number
7,692,003
Issue date
Apr 6, 2010
Otsuka Chemical Co., Ltd.
Isao Wada
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Processes for producing oxide with higher oxidation than alcohol
Patent number
7,183,421
Issue date
Feb 27, 2007
Otsuka Kagaku Kabushiki Kaisha
Hideo Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3-cephem derivative crystal
Patent number
6,887,992
Issue date
May 3, 2005
Otsuka Kagaku Kabushiki Kaisha
Takashi Moriyoshi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing oxide with higher oxidation than alcohol
Patent number
6,797,830
Issue date
Sep 28, 2004
Otsuka Kagaku Kabushiki Kaisha
Hideo Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of cephem compounds
Patent number
6,576,761
Issue date
Jun 10, 2003
Otsuka Kagaku Kabushiki Kaisha
Hideo Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 3-cephem compounds
Patent number
6,448,393
Issue date
Sep 10, 2002
Otsuka Kagaku Kabushiki Kaisha
Yutaka Kameyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparation of 3-cephem compound
Patent number
6,420,554
Issue date
Jul 16, 2002
Otsuka Kagaku Kabushiki Kaisha
Yutaka Kameyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 3-alkenylcephem compounds
Patent number
6,417,351
Issue date
Jul 9, 2002
Otsuka Kagaku Kabushiki Kaisha
Yutaka Kameyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation of β-hydroxy esters using ammonium borohydrides
Patent number
6,399,770
Issue date
Jun 4, 2002
Otsuka Kagaku Kabushiki Kaisha
Yutaka Kameyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing exo-methylenepenam compounds
Patent number
6,339,152
Issue date
Jan 15, 2002
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing beta lactam compound
Patent number
6,197,185
Issue date
Mar 6, 2001
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing .beta.-lactam derivatives
Patent number
6,150,519
Issue date
Nov 21, 2000
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing .beta.-lactam compound
Patent number
6,043,356
Issue date
Mar 28, 2000
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing .beta.-lactam halide compound
Patent number
6,011,151
Issue date
Jan 4, 2000
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparation of .beta.-lactam compounds
Patent number
5,986,091
Issue date
Nov 16, 1999
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 3-norcephem compounds
Patent number
5,977,352
Issue date
Nov 2, 1999
Otsuka Kagaku Kabushiki Kaisha
Michio Sasaoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 3-alkoxymethylcephem compounds
Patent number
5,968,335
Issue date
Oct 19, 1999
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Cyclization for preparing halo-cephems
Patent number
5,929,233
Issue date
Jul 27, 1999
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing 3-halogenated cephem derivative
Patent number
5,919,924
Issue date
Jul 6, 1999
Otsuka Kagaku Kabushiki Kaisha
Michio Sasaoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing .beta.-lactam compound
Patent number
5,905,147
Issue date
May 18, 1999
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
.beta.-lactam and cephem compounds and processes for their production
Patent number
5,693,792
Issue date
Dec 2, 1997
Otsuga Kagaku Kabushiki Kaisha
Shigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing cephem compounds
Patent number
5,656,754
Issue date
Aug 12, 1997
Otsuka Kagaku Kabushiki Kaisha
Shigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Penam derivatives
Patent number
5,599,925
Issue date
Feb 4, 1997
Otsuka Kagaku Kabushiki Kaisha
Shigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing examethylenecephem compounds
Patent number
5,470,972
Issue date
Nov 28, 1995
Otsuka Kagaku Kabushiki Kaisha
Shigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing thiazolino azetidinone and 2-exo-methylenepen...
Patent number
5,288,860
Issue date
Feb 22, 1994
Otsuka Kagaku Kasbushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Thiazolinoazetidinone derivative
Patent number
5,206,361
Issue date
Apr 27, 1993
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing cephem derivatives
Patent number
5,204,458
Issue date
Apr 20, 1993
Otsuka Kagaku Kabushiki Kaisha
Sigeru Torii
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING 6-HYDROXYETHYLPENAM COMPOUND
Publication number
20100113769
Publication date
May 6, 2010
Otsuka Chemical Co., Ltd.
Hideo Tanaka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
3 -Alkenylcephem Compounds and Process for Production Thereof
Publication number
20080064869
Publication date
Mar 13, 2008
Yoichi Nishioka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for Production of 3-Alkenylcephem Compounds
Publication number
20080033166
Publication date
Feb 7, 2008
Yoichi Nishioka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Penicillin crystal and process for producing the same
Publication number
20060293516
Publication date
Dec 28, 2006
Isao Wada
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Processes for producing oxide with higher oxidation than alcohol
Publication number
20050014957
Publication date
Jan 20, 2005
Hideo Tanaka
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
3-cephem derivative crystal
Publication number
20040073023
Publication date
Apr 15, 2004
Takashi Moriyoshi
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for producing oxide with higher oxidation than alcohol
Publication number
20030114712
Publication date
Jun 19, 2003
Hideo Tanaka
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
Cephalosporin crystals and process for their preparation
Publication number
20020099206
Publication date
Jul 25, 2002
Yutaka Kameyama
C07 - ORGANIC CHEMISTRY