Shunsuke Senba

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Yokohoma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Automatic message announcement system
- Patent number 4,307,859
- Issue date Dec 29, 1981
- Japanese National Railways
- Yoshiro Hayashi
- G07 - CHECKING-DEVICES
Information Patent Grant
Automatic message announcement system
- Patent number 4,276,572
- Issue date Jun 30, 1981
- Japanese National Railways
- Yoshiro Hayashi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS