Membership
Tour
Register
Log in
Nanao Watanabe
Follow
Person
Nara, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Process for preparing N-tert-butyl-2-pyrazinecarboxamide and N-tert...
Patent number
5,922,873
Issue date
Jul 13, 1999
Koei Chemical Co., Ltd.
Nanao Watanabe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing N-tert-butyl-2-pyrazinecarboxamide and N-tert...
Patent number
5,734,055
Issue date
Mar 31, 1998
Koei Chemical Co. Ltd.
Nanao Watanabe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing tertiary amine-N-oxide
Patent number
5,668,281
Issue date
Sep 16, 1997
Koei Chemical Co., Ltd.
Shinkichi Shimizu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyrazine derivatives
Patent number
5,496,949
Issue date
Mar 5, 1996
Koei Chemical Co., Ltd.
Ichiro Toida
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1,8-Naphthyridine compounds and process for preparing the same
Patent number
4,182,880
Issue date
Jan 8, 1980
Koei Chemical Co., Ltd.
Nanao Watanabe
C07 - ORGANIC CHEMISTRY