Inventor · disambiguated record

Kazuhisa Otomo

Also filed as: OTOMO KAZUHISA

1 granted patent·45 citations·filing 2006–2006

48Inventor score

Technology areasE21B

Files withJAPAN DRILLING CO LTD1

Top patents by PatentIndex Score

1 record

0187US7802384B2Method and device for excavating submerged stratumJAPAN DRILLING CO LTD·Filed 2006·Granted Sep 28, 2010·45 cites·12 claims

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