Inventor · disambiguated record

Hajime Sumitomo

Also filed as: SUMITOMO HAJIME

2 granted patents·2 citations·filing 20062013

35Inventor score
Technology areasB29CG02B
Files withMITSUBISHI PENCIL CO2

Top patents by PatentIndex Score

2 records

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