Hiroko Konuma

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ferroelectric liquid crystal device
- Patent number 5,827,448
- Issue date Oct 27, 1998
- Semiconductor Energy Laboratory Co., Ltd.
- Toshimitsu Konuma
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ferroelectric liquid crystal composition and liquid crystal display...
- Patent number 5,454,976
- Issue date Oct 3, 1995
- Takasago International Corporation
- Misao Yagi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Fluorine-containing optically active compound and liquid crystal co...
- Patent number 5,275,756
- Issue date Jan 4, 1994
- Takasago International Corporation
- Akio Yamaguchi
- C07 - ORGANIC CHEMISTRY