Inventor · disambiguated record
Masaaki Toma
Also filed as: TOMA MASAAKI
4 granted patents·1 pending application·54 citations·filing 1993–2004
74Inventor score
Top patents by PatentIndex Score
5 records- 0176US5304684AProcess for producing phenol and methyl ethyl ketoneSUMITOMO CHEMICAL CO·Filed 1993·Granted Apr 19, 1994·19 cites·7 claims
- 0266US5334774AProcess for purifying phenolSUMITOMO CHEMICAL CO·Filed 1993·Granted Aug 2, 1994·12 cites·18 claims
- 0357US5589077ALiquid filtering and supply system controlling recirculation responsive to pressure difference across filterSUMITOMO CHEMICAL CO·Filed 1994·Granted Dec 31, 1996·23 cites·16 claims
- 0435US2006113239A1Device and method of classifying emulsion and method of demulsifying emulsionOKUBO YOSHIHITO·Filed 2004·Application pending·0 cites
- 0524US6120653ASeparation and purification method of t-butyl-methylphenol isomerSUMITOMO CHEMICAL CO·Filed 1998·Granted Sep 19, 2000·0 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Masaaki Toma 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 →