Inventor · disambiguated record
Masao Oku
Also filed as: OKU MASAO
2 granted patents·1 pending application·12 citations·filing 1986–2022
50Inventor score
Top patents by PatentIndex Score
3 records- 0156US11799118B2Fuel cell systemHITACHI ZOSEN CORP·Filed 2020·Granted Oct 24, 2023·0 cites·10 claims
- 0256US2025266473A1Fuel treatment deviceMITSUBISHI ELECTRIC CORP·Filed 2022·Application pending·0 cites
- 0349US4779143AVideo disc recording and/or reproducing apparatus for color video signalHITACHI LTD·Filed 1986·Granted Oct 18, 1988·12 cites·36 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →