Rikuji Watanabe

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Kurashiki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Panel light source device and display comprising it
- Patent number 6,086,212
- Issue date Jul 11, 2000
- Kuraray Co., Ltd.
- Ikuo Onishi
- G02 - OPTICS
Information Patent Grant
Image display apparatus with hydrophobic diffraction grating for an...
- Patent number 6,067,137
- Issue date May 23, 2000
- Kuraray Co., Ltd.
- Ikuo Ohnishi
- G02 - OPTICS
Information Patent Grant
Light diffusing sheet having a layer incorporated with light diffus...
- Patent number 6,002,464
- Issue date Dec 14, 1999
- Kuraray Co., Ltd.
- Katsuya Fujisawa
- G02 - OPTICS
Information Patent Grant
Image display apparatus
- Patent number 5,513,025
- Issue date Apr 30, 1996
- Kuraray Co., Ltd.
- Rikuji Watanabe
- G02 - OPTICS