Hirofumi YUMOTO

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Tokyo-to, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical rotation plate and liquid crystal display device using the...
- Patent number 8,531,627
- Issue date Sep 10, 2013
- Dai Nippon Printing Co., Ltd.
- Satoru Hamada
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL ROTATION PLATE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE...
- Publication number 20100165258
- Publication date Jul 1, 2010
- DAI NIPPON PRINTING CO., LTD.
- Satoru HAMADA
- G02 - OPTICS