Inventor · disambiguated record
Toyoko Iizumi
Also filed as: IIZUMI TOYOKO
2 granted patents·15 citations·filing 1982–1983
58Inventor score
Files withNISSAN CHEMICAL IND LTD2
Top patents by PatentIndex Score
2 records- 0165US4577025AMethod of preparing α-aromatic propionic acids and intermediates thereofNISSAN CHEMICAL IND LTD·Filed 1983·Granted Mar 18, 1986·7 cites·26 claims
- 0264US4417070AProcess for preparing an optical active ester of naphthylpropionic acidNISSAN CHEMICAL IND LTD·Filed 1982·Granted Nov 22, 1983·8 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Toyoko Iizumi 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 →