Masayuki Ohshima

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optically active pyridobenzoxazine derivatives and intermediates th...
- Patent number 5,142,046
- Issue date Aug 25, 1992
- Daiichi Pharmaceutical Co., Ltd.
- Isao Hayakawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optically active pyridobenzoxazine derivatives and anti-microbial use
- Patent number 5,053,407
- Issue date Oct 1, 1991
- Daiichi Pharmaceutical Co., Ltd.
- Isao Hayakawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optically active pyridobenzoxazine derivatives and intermediates th...
- Patent number 4,985,557
- Issue date Jan 15, 1991
- Daiichi Seiyaku Co., Ltd.
- Isao Hayakawa
- C07 - ORGANIC CHEMISTRY