Yutaka Usubuchi

Follow

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sulfonic acid group-containing polyurethane and a photosensitive re...
- Patent number 5,177,171
- Issue date Jan 5, 1993
- Asahi Kasei Kogyo Kabushiki Kaisha
- Yutaka Usubuchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cephalosporin derivatives and process for preparing the same
- Patent number 4,245,107
- Issue date Jan 13, 1981
- Asahi Kasei Kogyo Kabushiki Kaisha
- Chisei Shibuya
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cephalosporin derivatives and process for preparing the same
- Patent number 4,172,197
- Issue date Oct 23, 1979
- Asahi Kasei Kogyo Kabushiki Kaisha
- Chisei Shibuya
- C07 - ORGANIC CHEMISTRY