Koji Kawada

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Hadano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light guide device enhancing a polarized component and liquid cryst...
- Patent number 6,344,886
- Issue date Feb 5, 2002
- Stanley Electric Co., Ltd.
- Yoji Oki
- G02 - OPTICS
Information Patent Grant
Wedge shaped light guide providing enhanced polarized light to a ba...
- Patent number 6,124,906
- Issue date Sep 26, 2000
- IBM Corporation
- Koji Kawada
- G02 - OPTICS
Information Patent Grant
Light guide device enhancing a polarized component and liquid cryst...
- Patent number 6,118,503
- Issue date Sep 12, 2000
- Stanley Electric Co., Ltd.
- Yoji Oki
- G02 - OPTICS
Information Patent Grant
Surface light source apparatus
- Patent number 5,779,339
- Issue date Jul 14, 1998
- Stanley Electric Co., Ltd.
- Satoru Konishi
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Light guide device enhancing a polarized component and liquid cryst...
- Publication number 20020041501
- Publication date Apr 11, 2002
- International Business Machines Corporation
- Yoji Oki
- G02 - OPTICS
Information Patent Application
Light guide device enhancing a polarized component and liquid cryst...
- Publication number 20010046006
- Publication date Nov 29, 2001
- Yoji Oki
- G02 - OPTICS