Katsuhito Inagaki

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Mie, JP

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Patents Grantslast 30 patents

Information Patent Grant
Road sign device and spontaneously emitted light sign system used f...
- Patent number 6,726,398
- Issue date Apr 27, 2004
- Sekisui Jushi Kabushiki Kaisha
- Yasuhiko Hamakawa
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Road sign device and spontaneously emitted light sign system used f...
- Publication number 20020159834
- Publication date Oct 31, 2002
- Yasuhiko Hamakawa
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES