Inventor · disambiguated record
Yukio Sumiya
Also filed as: SUMIYA YUKIO
3 granted patents·181 citations·filing 1990–1991
77Inventor score
Top patents by PatentIndex Score
3 records- 0184US5335547AUltrasonic flaw detectorHITACHI CONSTRUCTION MACHINERY·Filed 1990·Granted Aug 9, 1994·77 cites·14 claims
- 0283US5119189AStereoscopic imaging systemHITACHI LTD·Filed 1990·Granted Jun 2, 1992·74 cites·7 claims
- 0379US5220459AOptical disk driving with inertial damping spring supporting lens holderHITACHI LTD·Filed 1991·Granted Jun 15, 1993·30 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →