Inventor · disambiguated record
Sumio Hirotsu
Also filed as: HIROTSU SUMIO
1 granted patent·5 citations·filing 2001–2001
26Inventor score
Technology areasC08J
Files withOJI PAPER CO1
Top patents by PatentIndex Score
1 recordIdentity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →