Inventor · disambiguated record
Keiko Matsuda
Also filed as: MATSUDA KEIKO
3 granted patents·68 citations·filing 1985–1988
74Inventor score
Technology areasG03F
Files withCANON KK3
Top patents by PatentIndex Score
3 records- 0177US4837123AMask structure for lithography, method of preparation thereof and lithographic methodCANON KK·Filed 1988·Granted Jun 6, 1989·26 cites·36 claims
- 0274US4677042AMask structure for lithography, method for preparation thereof and lithographic methodCANON KK·Filed 1985·Granted Jun 30, 1987·23 cites·32 claims
- 0363US4804600ALithographic mask structure and process for preparing the sameCANON KK·Filed 1988·Granted Feb 14, 1989·19 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Keiko Matsuda 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 →