Inventor · disambiguated record
Toshio Sumi
Also filed as: SUMI TOSHIO
3 granted patents·70 citations·filing 1985–1991
73Inventor score
Files withISEKI KAIHATSU KOKI3
Top patents by PatentIndex Score
3 records- 0169US4655493AShield tunneling machineISEKI KAIHATSU KOKI·Filed 1985·Granted Apr 7, 1987·37 cites·4 claims
- 0247US4630869AShield tunneling machineISEKI KAIHATSU KOKI·Filed 1985·Granted Dec 23, 1986·18 cites·6 claims
- 0336US5339241AMethod and system for controlling a travelling body so as to move forward along the predetermined route of the movement of travelling bodyISEKI KAIHATSU KOKI·Filed 1991·Granted Aug 16, 1994·15 cites·6 claims
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