Toshihiko Iwanaga

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Kanagawa, JP

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Patents Grantslast 30 patents

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Thin film semiconductor device for active matrix panel
- Patent number 6,150,692
- Issue date Nov 21, 2000
- Sony Corporation
- Toshihiko Iwanaga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color filter structure for color display device
- Patent number 6,031,512
- Issue date Feb 29, 2000
- Sony Corporation
- Hisashi Kadota
- G02 - OPTICS
Information Patent Grant
Thin film semiconductor device for active matrix panel
- Patent number 5,932,484
- Issue date Aug 3, 1999
- Sony Corporation
- Toshihiko Iwanaga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Substrate having an active element array with low hydroxyl and chlo...
- Patent number 5,349,456
- Issue date Sep 20, 1994
- Sony Corporation
- Toshihiko Iwanaga
- G02 - OPTICS