Yoichi Hirai

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Patents Grantslast 30 patents

Information Patent Grant
Colorless liquid crystalline compounds
- Patent number 4,694,098
- Issue date Sep 15, 1987
- Hitachi, Ltd.
- Yoichi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Colorless liquid crystalline compounds
- Patent number 4,564,694
- Issue date Jan 14, 1986
- Hitachi, Ltd.
- Yoichi Hirai
- C07 - ORGANIC CHEMISTRY