Inventor · disambiguated record

Akira Sugihara

Also filed as: SUGIHARA AKIRA

2 granted patents·50 citations·filing 1979–1980

64Inventor score

Technology areasG07C H04H

Files withJAPAN NATIONAL RAILWAY2

Top patents by PatentIndex Score

2 records

0168US4276572AAutomatic message announcement systemJAPAN NATIONAL RAILWAY·Filed 1979·Granted Jun 30, 1981·18 cites·14 claims
0260US4307859AAutomatic message announcement systemJAPAN NATIONAL RAILWAY·Filed 1980·Granted Dec 29, 1981·32 cites·10 claims

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Akira Sugihara — Patent Inventor | PatentIndex