Inventor · disambiguated record

Sumio Iwashima

Also filed as: IWASHIMA SUMIO

1 granted patent·18 citations·filing 1990–1990

39Inventor score
Technology areasG21C
Files withHITACHI LTD1

Top patents by PatentIndex Score

1 record

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →