Inventor · disambiguated record
Eiji Hirooka
Also filed as: HIROOKA EIJI
1 granted patent·90 citations·filing 1991–1991
52Inventor score
Technology areasB01D
Files withBOC GROUP INC1
Top patents by PatentIndex Score
1 recordJoin the waitlist — get patent alerts
Get an alert when Eiji Hirooka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →