Norihiro Okada

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Trisarylaminobenzene derivatives, compounds for organic EL element,...
- Patent number 5,508,136
- Issue date Apr 16, 1996
- Shirota; Yasuhiko
- Yasuhiko Shirota
- C07 - ORGANIC CHEMISTRY