Hiroaki Usui

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Volume reducing agents for expanded polystyrene, methods and appara...
- Patent number 6,403,661
- Issue date Jun 11, 2002
- Victech Co., Ltd.
- Hiroaki Usui
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
VOLUME REDUCING AGENTS FOR EXPANDED POLYSTYRENE, METHODS AND APPARA...
- Publication number 20020077376
- Publication date Jun 20, 2002
- Hiroaki Usui
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...