Inventor · disambiguated record
Katsuhiko Yoshida
Also filed as: YOSHIDA KATSUHIKO
6 granted patents·1 pending application·17 citations·filing 1992–2009
77Inventor score
Files withSUMITOMO SEIKA CHEMICALS7
Top patents by PatentIndex Score
7 records- 0160US5298630AProcesses for producing 2-substituted benzo[B]thiopheneSUMITOMO SEIKA CHEMICALS·Filed 1992·Granted Mar 29, 1994·7 cites·16 claims
- 0253US2010324299A1Method for purification of pyridine, and method for production of chlorinated pyridineSUMITOMO SEIKA CHEMICALS·Filed 2009·Application pending·0 cites
- 0352US5633384AMethod for producing 1,2-benzisothiazol-3-onesSUMITOMO SEIKA CHEMICALS·Filed 1995·Granted May 27, 1997·4 cites·4 claims
- 0451US5811571AProcess for preparing aromatic or heteroaromatic sulfonyl halidesSUMITOMO SEIKA CHEMICALS·Filed 1995·Granted Sep 22, 1998·5 cites·15 claims
- 0537US5352821A2,5-dichlorophenylthioglycolic acid derivative and method for its productionSUMITOMO SEIKA CHEMICALS·Filed 1993·Granted Oct 4, 1994·1 cites·13 claims
- 0632US5773626AMethod for producing 1,2-benzisothiazol-3-onesSUMITOMO SEIKA CHEMICALS·Filed 1996·Granted Jun 30, 1998·0 cites·4 claims
- 0731US5210287A2,5-dichlorophenylthioglycolic acid derivative and method for its productionSUMITOMO SEIKA CHEMICALS·Filed 1992·Granted May 11, 1993·0 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Katsuhiko Yoshida 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 →