Inventor · disambiguated record
Sanpei Usui
Also filed as: USUI SANPEI
1 granted patent·17 citations·filing 1983–1983
38Inventor score
Technology areasF25B
Files withHITACHI LTD1
Top patents by PatentIndex Score
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →