Inventor · disambiguated record
Ryuji Koyama
Also filed as: KOYAMA RYUJI
2 granted patents·33 citations·filing 1986–1988
63Inventor score
Technology areasB22D
Files withASMO CO LTD2
Top patents by PatentIndex Score
2 recordsJoin the waitlist — get patent alerts
Get an alert when Ryuji Koyama 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 →