Taku Sumitomo

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
High pressure sodium vapor lamp with high color rendering
- Patent number 5,814,944
- Issue date Sep 29, 1998
- Matsushita Electric Works, Ltd.
- Naoki Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrodeless discharge lamp
- Patent number 5,519,285
- Issue date May 21, 1996
- Matsushita Electric Works, Ltd.
- Shin Ukegawa
- H01 - BASIC ELECTRIC ELEMENTS