Reiji Ishikawa

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing a light transmitting filter
- Patent number 4,803,337
- Issue date Feb 7, 1989
- Sony Corporation
- Reiji Ishikawa
- G02 - OPTICS
Information Patent Grant
Method of making a rotary ball display device
- Patent number 4,438,160
- Issue date Mar 20, 1984
- Sony Corporation
- Reiji Ishikawa
- G02 - OPTICS