Koji Tsukagoshi

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Kawagoe-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light-emitting device
- Patent number 6,774,405
- Issue date Aug 10, 2004
- Toyoda Gosei Co., Ltd.
- Takemasa Yasukawa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Light-emitting device
- Publication number 20020121645
- Publication date Sep 5, 2002
- Takemasa Yasukawa
- H01 - BASIC ELECTRIC ELEMENTS