Inventor · disambiguated record
Ryoji Matsukawa
Also filed as: MATSUKAWA RYOJI
2 granted patents·1 pending application·30 citations·filing 2004–2022
60Inventor score
Technology areasB60N
Top patents by PatentIndex Score
3 records- 0162US7121626B2Headrest lock structure with lock slots, method for forming lock slots in headrest pole and method for producing headrest poleDELTA KOGYO CO·Filed 2004·Granted Oct 17, 2006·25 cites·16 claims
- 0256US8528982B2SeatFUJITA ETSUNORI·Filed 2009·Granted Sep 10, 2013·5 cites·13 claims
- 0343US2024270138A1Headrest for vehicular seat and production method thereforDELTA KOGYO CO·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →