Inventor · disambiguated record

Tadao Utsumi

Also filed as: UTSUMI TADAO

2 granted patents·76 citations·filing 1977–1983

65Inventor score

Technology areasB21D F16B

Files withAIOI SEIKI KK1 YAMASHINA SEIKOSHO KK1

Top patents by PatentIndex Score

2 records

0193US4449907ADies exchanging device for a machine using diesAIOI SEIKI KK·Filed 1983·Granted May 22, 1984·66 cites·7 claims
0238US4136597ADrill screw and die for producing sameYAMASHINA SEIKOSHO KK·Filed 1977·Granted Jan 30, 1979·10 cites·1 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →