Inventor · disambiguated record

Tomoyoshi Iwao

Also filed as: IWAO TOMOYOSHI

2 granted patents·42 citations·filing 1987–1993

63Inventor score

Technology areasB32B C21D

Files withNISSHIN STEEL CO LTD2

Top patents by PatentIndex Score

2 records

0159US4873149AVibration-damper metal sheetsNISSHIN STEEL CO LTD·Filed 1987·Granted Oct 10, 1989·33 cites·10 claims
0251US5294271AHeat treatment for manufacturing spring steel excellent in high-temperature relaxation resistanceNISSHIN STEEL CO LTD·Filed 1993·Granted Mar 15, 1994·9 cites·12 claims

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