Inventor · disambiguated record
Kenzi Takuma
Also filed as: TAKUMA KENZI
4 granted patents·9 citations·filing 1981–1998
67Inventor score
Technology areasC07C
Files withSUMITOMO CHEMICAL CO4
Top patents by PatentIndex Score
4 records- 0151US4733001AMethod for preparing a mixture of stereoisomers of α-cyano-3-phenoxybenzyl isovalerate ester derivatives having a higher insecticidal and acaricidal activitySUMITOMO CHEMICAL CO·Filed 1981·Granted Mar 22, 1988·4 cites·34 claims
- 0242US4422978AMethod for preparing optically active carboxylic acid estersSUMITOMO CHEMICAL CO·Filed 1981·Granted Dec 27, 1983·2 cites·59 claims
- 0340US5962723AMethod for producing benzyl bromide derivativesSUMITOMO CHEMICAL CO·Filed 1998·Granted Oct 5, 1999·2 cites·6 claims
- 0436US4432908ACrystal of enantiomer pair of phenylacetic acid ester derivative and process for obtaining a mixture of stereoisomers of the derivativeSUMITOMO CHEMICAL CO·Filed 1981·Granted Feb 21, 1984·1 cites·42 claims
Join the waitlist — get patent alerts
Get an alert when Kenzi Takuma 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 →