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Patents Grants
last 30 patents
Information
Patent Grant
Optically active ammonium salt compound, production intermediate th...
Patent number
8,962,898
Issue date
Feb 24, 2015
Nippon Soda Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for production of mono-substituted alkylated compound using...
Patent number
8,722,919
Issue date
May 13, 2014
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active quaternary ammonium salt having axial asymmetry an...
Patent number
8,716,524
Issue date
May 6, 2014
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active quaternary ammonium salt having axial asymmetry an...
Patent number
8,697,910
Issue date
Apr 15, 2014
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active quaternary ammonium salt having axial asymmetry an...
Patent number
8,614,316
Issue date
Dec 24, 2013
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active ammonium salt compound, production intermediate th...
Patent number
8,367,820
Issue date
Feb 5, 2013
Nippon Soda Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active quaternary ammonium salt having axial asymmetry, a...
Patent number
8,263,798
Issue date
Sep 11, 2012
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active quaternary ammonium salt having axial asymmetry, a...
Patent number
8,252,952
Issue date
Aug 28, 2012
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active quaternary ammonium salt having axial asymmetry, a...
Patent number
8,110,680
Issue date
Feb 7, 2012
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active quaternary ammonium salt having axial asymmetry an...
Patent number
7,928,224
Issue date
Apr 19, 2011
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active quarternary ammonium salt with axial chirality, me...
Patent number
6,441,231
Issue date
Aug 27, 2002
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active quarternary ammonium salt with axial chirality, me...
Patent number
6,340,753
Issue date
Jan 22, 2002
Nagase & Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
OPTICALLY ACTIVE AMMONIUM SALT COMPOUND, PRODUCTION INTERMEDIATE TH...
Publication number
20130131337
Publication date
May 23, 2013
Nippon Soda Co., Ltd.
Keiji Maruoka
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY, A...
Publication number
20120108846
Publication date
May 3, 2012
Nagase & Co., Ltd
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY, A...
Publication number
20120101309
Publication date
Apr 26, 2012
NAGASE & CO., LTD.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY, A...
Publication number
20120101310
Publication date
Apr 26, 2012
NAGASE & CO., LTD.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY, A...
Publication number
20120095252
Publication date
Apr 19, 2012
NAGASE & CO., LTD.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY, A...
Publication number
20120095218
Publication date
Apr 19, 2012
NAGASE & CO., LTD.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY AN...
Publication number
20110152562
Publication date
Jun 23, 2011
Nagase & Co., Ltd
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE AMMONIUM SALT COMPOUND, PRODUCTION INTERMEDIATE TH...
Publication number
20100041881
Publication date
Feb 18, 2010
Nippon Soda Co., Ltd.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY, A...
Publication number
20100029935
Publication date
Feb 4, 2010
Nagase & Co., Ltd
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY AN...
Publication number
20090270614
Publication date
Oct 29, 2009
Nagase & Co., Ltd
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PROCESS FOR PRODUCTION OF MONO-SUBSTITUTED ALKYLATED COMPOUND USING...
Publication number
20090054679
Publication date
Feb 26, 2009
NAGASE & CO., LTD.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Optically active quaternary ammonium salt having axial asymmetry an...
Publication number
20070161624
Publication date
Jul 12, 2007
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY AN...
Publication number
20070135654
Publication date
Jun 14, 2007
Nagase & Co., Ltd
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for producing optically active alpha-substituted cysteine o...
Publication number
20060069134
Publication date
Mar 30, 2006
KANEKA CORPORATION
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
OPTICALLY ACTIVE QUARTERNARY AMMONIUM SALT WITH AXIAL CHIRALITY, ME...
Publication number
20020103374
Publication date
Aug 1, 2002
NAGASE & CO., LTD.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Optically active quarternary ammonium salt with axial chirality, me...
Publication number
20020065414
Publication date
May 30, 2002
NAGASE & CO., LTD.
Keiji Maruoka
C07 - ORGANIC CHEMISTRY