Akira Masaki

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal cell with twist angle from 180 to 270 degrees and tw...
- Patent number 7,019,804
- Issue date Mar 28, 2006
- Nippon Oil Corporation
- Yoshihiro Kumagai
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Liquid crystal display
- Publication number 20040246418
- Publication date Dec 9, 2004
- Yoshihiro Kumagai
- G02 - OPTICS