Takeshi Toyoda

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal optical element having grouped concentric electrodes
- Patent number 7,839,458
- Issue date Nov 23, 2010
- Citizen Holdings Co., Ltd.
- Seiichi Osawa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Liquid Crystal Optical Element
- Publication number 20080266473
- Publication date Oct 30, 2008
- CITIZEN HOLDINGS CO., LTD.
- Seiichi Osawa
- G02 - OPTICS