Keiichi Minakuchi

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Patents Grantslast 30 patents

Information Patent Grant
Phase retarder
- Patent number 6,762,266
- Issue date Jul 13, 2004
- Sumitomo Chemical Company, Limited
- Keiichi Minakuchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Phase retarder
- Publication number 20020169267
- Publication date Nov 14, 2002
- Sumitomo Chemical Company, Limited
- Keiichi Minakuchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...