Inventor · disambiguated record
Tazuko Ishizuka
Also filed as: ISHIZUKA TAZUKO
5 granted patents·91 citations·filing 1987–1990
83Inventor score
Top patents by PatentIndex Score
5 records- 0175US5026145AExposure apparatusASAHI OPTICAL CO LTD·Filed 1988·Granted Jun 25, 1991·24 cites·24 claims
- 0259US5078474AExposure apparatus having a magnifying lens systemASAHI OPTICAL CO LTD·Filed 1990·Granted Jan 7, 1992·20 cites·27 claims
- 0354US4863250AF.θ lens systemISHIZUKA TAZUKO·Filed 1988·Granted Sep 5, 1989·21 cites·13 claims
- 0450US5062692AExposure apparatusASAHI OPTICAL CO LTD·Filed 1990·Granted Nov 5, 1991·14 cites·22 claims
- 0541US4776654AScanning optical systemASAHI OPTICAL CO LTD·Filed 1987·Granted Oct 11, 1988·12 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →