Inventor · disambiguated record
Ryoji Oniwa
Also filed as: ONIWA RYOJI
1 granted patent·12 citations·filing 1975–1975
34Inventor score
Technology areasC25C
Files withMITSUI MINING & SMELTING CO1
Top patents by PatentIndex Score
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →