Inventor · disambiguated record
Ryohji Hirai
Also filed as: HIRAI RYOHJI
1 granted patent·13 citations·filing 2001–2001
35Inventor score
Technology areasG02B
Files withRICOH KK1
Top patents by PatentIndex Score
1 recordIdentity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →