Kunihiro Takao

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Sano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lens type functional retroreflective sheeting and method of produci...
- Patent number 5,988,821
- Issue date Nov 23, 1999
- Nippon Carbide Kogyo Kabushiki Kaisha
- Osamu Tanaka
- G02 - OPTICS