Inventor · disambiguated record
Tazuo Ohta
Also filed as: KOMATSU MAKOTO · OHTA TAZUO
6 granted patents·169 citations·filing 1977–1991
85Inventor score
Files withMITSUBISHI GAS CHEMICAL CO6
Top patents by PatentIndex Score
6 records- 0193US5132450AProcess for producing high purity isophthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 1991·Granted Jul 21, 1992·92 cites·19 claims
- 0293US4268690AProcess for producing terephthalic acid of high purityMITSUBISHI GAS CHEMICAL CO·Filed 1979·Granted May 19, 1981·40 cites·12 claims
- 0368US4297507AProcess and apparatus for producing terephthalic acid with high purityMITSUBISHI GAS CHEMICAL CO·Filed 1980·Granted Oct 27, 1981·8 cites·13 claims
- 0465US5189209AProcess for producing highly pure isophthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 1991·Granted Feb 23, 1993·11 cites·6 claims
- 0564US4211882AProcess for producing terephthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 1979·Granted Jul 8, 1980·15 cites·25 claims
- 0651US4214100AProcess for preventing blackening of phthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 1977·Granted Jul 22, 1980·3 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Tazuo Ohta 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 →