Hideki Doi

Follow

Person

Niihama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for producing a high purity caprolactam
- Patent number 5,525,725
- Issue date Jun 11, 1996
- Sumitomo Chemical Company, Limited
- Yasuhiko Higashio
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing a high purity caprolactam
- Patent number 5,459,261
- Issue date Oct 17, 1995
- Sumitomo Chemical Company, Limited
- Yasuhiko Higashio
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing a high purity caprolactam
- Patent number 5,362,870
- Issue date Nov 8, 1994
- Sumitomo Chemical Company, Ltd.
- Yasuhiko Higashio
- C07 - ORGANIC CHEMISTRY