Inventor · disambiguated record
Ritsuko Tsutsumi
Also filed as: MAMETANI TOMOHARU · TSUTSUMI RITSUKO
2 granted patents·8 citations·filing 1989–1991
52Inventor score
Technology areasH10W
Files withMITSUBISHI ELECTRIC CORP2
Top patents by PatentIndex Score
2 records- 0131US5234859ALOCOS type field isolating film and semiconductor memory device formed therewithMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Aug 10, 1993·6 cites·7 claims
- 0227US5065218ALocos type field isolating film and semiconductor memory device formed therewithMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Nov 12, 1991·2 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Ritsuko Tsutsumi 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 →