Inventor · disambiguated record
Masatoshi Ueoka
Also filed as: UEOKA MASATOSHI
31 granted patents·903 citations·filing 1987–2002
97Inventor score
Top patents by PatentIndex Score
31 records- 0197US6252110B1Methods for recovering acrylic acidNIPPON CATALYTIC CHEM IND·Filed 1998·Granted Jun 26, 2001·363 cites·10 claims
- 0296US5322960AMethod for inhibiting polymerization of (meth) acrylic acid and esters thereofNIPPON CATALYTIC CHEM IND·Filed 1993·Granted Jun 21, 1994·89 cites·7 claims
- 0395US6482981B2Method for producing acrylic acidNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Nov 19, 2002·41 cites·16 claims
- 0495US6414183B1Method for handling waste oilNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Jul 2, 2002·45 cites·18 claims
- 0591US5504243AMethod for inhibiting polymerization of (meth) acrylic acid and esters thereofNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Apr 2, 1996·47 cites·2 claims
- 0691US5315037AProcess for purification of acrylic acidNIPPON CATALYTIC CHEM IND·Filed 1993·Granted May 24, 1994·38 cites·24 claims
- 0785US6966973B2Apparatus and process for producing (meth)acrylic acidNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Nov 22, 2005·12 cites·17 claims
- 0885US4956493AProcess for producing methacrylic esterNIPPON CATALYTIC CHEM IND·Filed 1988·Granted Sep 11, 1990·23 cites·8 claims
- 0984US6300513B2Method of stabilizing N-oxyl compounds in vinyl compoundsNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Oct 9, 2001·13 cites·12 claims
- 1084US5785821AProcess for the production of acrylic acidNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Jul 28, 1998·30 cites·5 claims
- 1183US6695928B1Method for production of (meth) acrylic acid and/or (meth)acrylic estersNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Feb 24, 2004·13 cites·19 claims
- 1283US6380424B1Purification process for hydroxyalkyl (meth)acrylateNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Apr 30, 2002·14 cites·5 claims
- 1382US5371280APolymerization inhibitor and inhibiting method for vinyl compoundNIPPON CATALYTIC CHEM IND·Filed 1991·Granted Dec 6, 1994·21 cites·17 claims
- 1481US6441228B2Apparatus and process for producing (meth)acrylic acidNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Aug 27, 2002·18 cites·2 claims
- 1580US6649028B2Column treating process and apparatus thereofNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Nov 18, 2003·12 cites·2 claims
- 1676US6414182B1Production process for hydroxyalkyl esterNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Jul 2, 2002·8 cites·20 claims
- 1775US6787001B2Method for distilling (meth) acrylic acid solutionNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Sep 7, 2004·20 cites·18 claims
- 1875US6649787B1Method for preparing (meth) acrylic acid esterNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Nov 18, 2003·7 cites·1 claims
- 1970US5248819AProcess for recovering methacroleinNIPPON SHOKUBAI KAGAKU OGYO CO·Filed 1991·Granted Sep 28, 1993·16 cites·4 claims
- 2069US6084127AMethod for recovering acrylic acidNIPPON CATALYTIC CHEM IND·Filed 1998·Granted Jul 4, 2000·11 cites·11 claims
- 2165US6348135B1Process for the purification of (meth) acrylic acid and/or its esterNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Feb 19, 2002·20 cites·14 claims
- 2264US6384267B1Process for producing hydroxyalkyl (METH) acrylatesNIPPON CATALYTIC CHEM IND·Filed 2000·Granted May 7, 2002·3 cites·8 claims
- 2362US7048834B2Method for purification of acrylic acidNIPPON CATALYTIC CHEM IND·Filed 2000·Granted May 23, 2006·3 cites·10 claims
- 2462US6660881B2Process for producing (meth)acrylic esterNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Dec 9, 2003·3 cites·11 claims
- 2561US6469202B2Method for disposal of solid catalystNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Oct 22, 2002·6 cites·9 claims
- 2659US6540881B1Method for refining (meth)acrylic acidNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Apr 1, 2003·14 cites·15 claims
- 2759US6458988B1Production process for hydroxyalkyl(meth)acrylateNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Oct 1, 2002·2 cites·12 claims
- 2847US6706208B2Stabilized hydroxyalkyl (meth)acrylateNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Mar 16, 2004·0 cites·8 claims
- 2946US6664418B1Method for inhibiting polymerization of a vinyl compoundNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Dec 16, 2003·3 cites·10 claims
- 3040US4725291AMethod of collecting pyromellitic anhydrideNIPPON CATALYTIC CHEM IND·Filed 1987·Granted Feb 16, 1988·8 cites·5 claims
- 3135US6452040B2Production process for hydroxyalkyl (meth)acrylateNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Sep 17, 2002·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →