Inventor · disambiguated record
Fumiya Zaima
Also filed as: ZAIMA FUMIYA
25 granted patents·3 pending applications·409 citations·filing 1989–2014
95Inventor score
Top patents by PatentIndex Score
28 records- 0196US5712412AProcess for producing highly pure terephthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 1995·Granted Jan 27, 1998·114 cites·4 claims
- 0293US5705682AProcess for producing highly pure terephthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 1996·Granted Jan 6, 1998·74 cites·14 claims
- 0393US5684187AProcess for producing highly pure terephthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 1996·Granted Nov 4, 1997·75 cites·14 claims
- 0491US5679847AProcess for producing terephthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 1996·Granted Oct 21, 1997·56 cites·16 claims
- 0580US7071362B2Process for producing alicyclic aldehydesMITSUBISHI GAS CHEMICAL CO·Filed 2004·Granted Jul 4, 2006·11 cites·25 claims
- 0678US5021197AProcess for production of sulfonium compoundsMITSUBISHI GAS CHEMICAL CO·Filed 1989·Granted Jun 4, 1991·15 cites·26 claims
- 0775US6541662B2Process for producing a hydrogenation product of an aromatic carboxylic acidMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Apr 1, 2003·7 cites·12 claims
- 0871US5880313AProcess for producing aromatic carboxylic acidMITSUBISHI GAS CHEMICAL CO·Filed 1998·Granted Mar 9, 1999·25 cites·9 claims
- 0965US6013831AProcesses for the production of high-purity dimethyl 2, 6-naphthalenedicarboxylate and naphthalenedicarboxylic acidMITSUBISHI GAS CHEMICAL CO·Filed 1998·Granted Jan 11, 2000·10 cites·18 claims
- 1064US6927306B2Process for producing hydrogenated aromatic polycarboxylic acid and process for producing hydrogenated aromatic polycarboxylic anhydrideMITSUBISHI GAS CHEMICAL CO·Filed 2002·Granted Aug 9, 2005·3 cites·22 claims
- 1162US6268528B1Method of producing naphthalenedicarboxylic acidMITSUBISHI GAS CHEMICAL CO·Filed 1999·Granted Jul 31, 2001·8 cites·23 claims
- 1254US2010016629A1Process for production of terephthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 2007·Application pending·0 cites
- 1354US2010048943A1Process for production of isophthalic acidMITSUBISHI GAS CHEMICAL CO·Filed 2007·Application pending·0 cites
- 1453US8242304B2Process for production of isophthalic acidZAIMA FUMIYA·Filed 2011·Granted Aug 14, 2012·0 cites·10 claims
- 1553US8236982B2Process for production of terephthalic acidZAIMA FUMIYA·Filed 2011·Granted Aug 7, 2012·0 cites·10 claims
- 1651US5075476AProcess for production of sulfonium compounds and novel methylthiphenol derivativesMITSUBISHI GAS CHEMICAL CO·Filed 1990·Granted Dec 24, 1991·5 cites·10 claims
- 1748US5149857AProcess for production of sulfonium compoundsMITSUBISHI GAS CHEMICAL CO·Filed 1990·Granted Sep 22, 1992·4 cites·12 claims
- 1848US2016244389A11,3-bis(hydroxyphenyl)-5-ethyladamantane compound and method for production thereof, and aromatic polycarbonate resin and method for production thereofMITSUBISHI GAS CHEMICAL CO·Filed 2014·Application pending·0 cites
- 1946US9266810B2Crossflow type filtering operation method using ceramic filterZAIMA FUMIYA·Filed 2011·Granted Feb 23, 2016·0 cites·12 claims
- 2044US8247604B2Method of replacing dispersion mediumINARI MASATO·Filed 2007·Granted Aug 21, 2012·0 cites·7 claims
- 2144US8247605B2Method of replacing dispersion mediumINARI MASATO·Filed 2007·Granted Aug 21, 2012·0 cites·8 claims
- 2243US9347112B2Pretreatment method for chelate resin having pyridine ring used for collecting catalyst in terephthalic acid production processZAIMA FUMIYA·Filed 2011·Granted May 24, 2016·0 cites·15 claims
- 2343US8178716B2Method of crystallizationZAIMA FUMIYA·Filed 2007·Granted May 15, 2012·0 cites·9 claims
- 2441US8957247B2Pretreatment method for chelate resin having pyridine ring used for collecting catalyst in aromatic carboxylic acid production processZAIMA FUMIYA·Filed 2011·Granted Feb 17, 2015·0 cites·13 claims
- 2540US9144750B2Method of replacing dispersion medium and apparatus thereforINARI MASATO·Filed 2012·Granted Sep 29, 2015·0 cites·15 claims
- 2639US9150487B2Crossflow type filtering operation method using ceramic filterZAIMA FUMIYA·Filed 2011·Granted Oct 6, 2015·0 cites·11 claims
- 2736US5310944AProcess for producing carboxylated compoundMITSUBISHI GAS CHEMICAL CO·Filed 1992·Granted May 10, 1994·1 cites·12 claims
- 2835US5187311AMethylthiophenol derivatives and p-methylthiophenyl chloroformates and processes for producing these derivativesMITSUBISHI GAS CHEMICAL CO·Filed 1991·Granted Feb 16, 1993·1 cites·6 claims
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