Kei Kato

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Chiba-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical diffusing sheet, optical deflecting sheet, and transmission...
- Patent number 8,130,446
- Issue date Mar 6, 2012
- Dai Nippon Printing Co., Ltd.
- Daijiro Kodama
- G02 - OPTICS
Information Patent Grant
Optical diffusing sheet, optical deflecting sheet, and transmission...
- Patent number 7,885,003
- Issue date Feb 8, 2011
- Dai Nippon Printing Co., Ltd.
- Daijiro Kodama
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL DIFFUSING SHEET, OPTICAL DEFLECTING SHEET, AND TRANSMISSION...
- Publication number 20110069384
- Publication date Mar 24, 2011
- Dai Nippon Printing Co., Ltd.
- Daijiro KODAMA
- G02 - OPTICS
Information Patent Application
OPTICAL DIFFUSING SHEET, OPTICAL DEFLECTING SHEET, AND TRANSMISSION...
- Publication number 20090190211
- Publication date Jul 30, 2009
- DAI NIPPON PRINTING CO., LTD.
- Daijiro Kodama
- G02 - OPTICS