Inventor · disambiguated record

Yasuyuki Iwamitsu

Also filed as: IWAMITSU YASUYUKI

2 granted patents·11 citations·filing 1976–1976

56Inventor score

Technology areasE21D

Files withTEKKEN CONSTR CO2

Top patents by PatentIndex Score

2 records

0145US4052859AMethod and apparatus of completing slurry shield tunneling at vertical shaftTEKKEN CONSTR CO·Filed 1976·Granted Oct 11, 1977·6 cites·13 claims
0234US4041713AMethod and apparatus for starting a tunneling machine from an initial placement within a vertical shaft sunk into the ground and provided with a starting portTEKKEN CONSTR CO·Filed 1976·Granted Aug 16, 1977·5 cites·17 claims

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