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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process for preparing optically active 3-(methylamino)-1-(2-thienyl...
Patent number
7,119,211
Issue date
Oct 10, 2006
Yamakawa Chemical Industry Co., Ltd.
Kenichi Sakai
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing stereoisomer of pyrrolidine derivative
Patent number
6,620,945
Issue date
Sep 16, 2003
Eisai Co., Ltd.
Toyokazu Haga
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing optically active amines and optically active...
Patent number
6,342,636
Issue date
Jan 29, 2002
Yamakawa Chemical Industry Co., Ltd.
Kazuhiko Saigo
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing D-alloisoleucine and intermediates for prepar...
Patent number
6,310,242
Issue date
Oct 30, 2001
Yamakawa Chemical Industry Co., Ltd.
Hirofumi Noda
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing optically active piperazine derivatives and I...
Patent number
5,792,869
Issue date
Aug 11, 1998
Yamakawa Chemical Industry Co., Ltd.
Hisamichi Murakami
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optically active compound, process for producing same and liquid cr...
Patent number
4,999,130
Issue date
Mar 12, 1991
Canon Kabushiki Kaisha
Hiroyuki Nohira
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of racemization of optically active tetrahydrofuran-2-carbox...
Patent number
4,950,772
Issue date
Aug 21, 1990
Yamakawa Chemical Industry Co., Ltd.
Hiroyuki Nohira
C07 - ORGANIC CHEMISTRY