Inventor · disambiguated record

Masaaki Sekizawa

Also filed as: SEKIZAWA MASAAKI

2 granted patents·232 citations·filing 1981–1990

71Inventor score

Technology areasB23Q F16F

Files withHITACHI KOKI KK2

Top patents by PatentIndex Score

2 records

0196US5129467AElectric hammer drill having dust collecting deviceHITACHI KOKI KK·Filed 1990·Granted Jul 14, 1992·126 cites·8 claims
0294US4401167AVibratory tool with a vibration proof mechanism for the handle thereofHITACHI KOKI KK·Filed 1981·Granted Aug 30, 1983·106 cites·8 claims

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