Inventor · disambiguated record
Ryouji Hirai
Also filed as: HIRAI RYOUJI
2 granted patents·18 citations·filing 2006–2007
58Inventor score
Technology areasG02B
Files withRICOH KK2
Top patents by PatentIndex Score
2 recordsIdentity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →