Yumiko Sakamaki

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Sayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tolan compound and liquid crystal composition containing the same
- Patent number 6,174,573
- Issue date Jan 16, 2001
- Citizen Watch Co., Ltd.
- Tomijiro Naito
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Tolan compound and liquid crystal composition containing the same
- Patent number 5,972,244
- Issue date Oct 26, 1999
- Citizen Watch Co., Ltd.
- Tomijiro Naito
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Tolan compound and liquid crystal composition containing the same
- Patent number 5,656,198
- Issue date Aug 12, 1997
- Citizen Watch Co., Ltd.
- Tomijiro Naito
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzyl ether derivative and composition containing the same
- Patent number 5,651,919
- Issue date Jul 29, 1997
- Citizen Watch Co., Ltd.
- Tomijiro Naito
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Ester derivatives
- Patent number 5,364,558
- Issue date Nov 15, 1994
- Citizen Watch Co., Ltd.
- Yumiko Sakamaki
- C07 - ORGANIC CHEMISTRY