Inventor · disambiguated record

Kinya Nagasuna

Also filed as: NAGASUNA KINYA

42 granted patents·2 pending applications·2,740 citations·filing 1989–2005

99Inventor score

Technology areasC08F A61F A61L C08J B01J

Files withNIPPON CATALYTIC CHEM IND39 NAGASUNA KINYA1 NIPPON SHOKUBAI KAGAKU KABUSHI1 NIPPON SKOKUBAI CO LTD1

Top patents by PatentIndex Score

44 records

0198US6265488B1Production process for water-absorbing agentNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Jul 24, 2001·178 cites·18 claims
0297US5140076AMethod of treating the surface of an absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1990·Granted Aug 18, 1992·156 cites·30 claims
0397US4973632AProduction process for water-absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1989·Granted Nov 27, 1990·181 cites·3 claims
0496US6297319B1Water-absorbing agent and production process thereforNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Oct 2, 2001·100 cites·23 claims
0596US6071976AWater absorbing agent, manufacturing method thereof, and manufacturing machine thereofNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Jun 6, 2000·186 cites·50 claims
0696US5164459AMethod for treating the surface of an absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1990·Granted Nov 17, 1992·132 cites·19 claims
0795US5574121AProcess for preparing an absorbent resin crosslinked with a mixture of trimethylolpropane diacrylate and triacrylateNIPPON CATALYTIC CHEM IND·Filed 1994·Granted Nov 12, 1996·142 cites·29 claims
0895US5532323AMethod for production of absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1993·Granted Jul 2, 1996·133 cites·6 claims
0995US5244735AWater-absorbent resin and production processNIPPON SHOKUBAI KAGAKU KABUSHI·Filed 1992·Granted Sep 14, 1993·176 cites·6 claims
1094US5422405AMethod for production of absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1993·Granted Jun 6, 1995·119 cites·15 claims
1192US5026800AWater-absorbent resin and production processNIPPON CATALYTIC CHEM IND·Filed 1989·Granted Jun 25, 1991·68 cites·9 claims
1291US5981070AWater-absorbent agent powders and manufacturing method of the sameNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Nov 9, 1999·70 cites·43 claims
1390US5229488AMethod for manufacture of an absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1990·Granted Jul 20, 1993·61 cites·36 claims
1489US5610208AWater-absorbent agent, method for production thereof, and water-absorbent compositionNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Mar 11, 1997·150 cites·13 claims
1589US5478879AMethod for production of absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1992·Granted Dec 26, 1995·82 cites·38 claims
1687US6395792B1Method for production of porous cross-linked poymerNIPPON CATALYTIC CHEM IND·Filed 2000·Granted May 28, 2002·28 cites·13 claims
1787US6187872B1Water-absorbent agent and method for manufacturing the sameNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Feb 13, 2001·58 cites·37 claims
1885US5797893AAbsorbing agent composition, absorbent material, and absorbent product containing absorbent materialNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Aug 25, 1998·140 cites·12 claims
1984US6992144B2Water-absorbent agent, method for production thereof, and water-absorbent compositionNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Jan 31, 2006·15 cites·11 claims
2084US6335406B1Method for production of absorbent resin excelling in durabilityNIPPON CATALYTIC CHEM IND·Filed 1993·Granted Jan 1, 2002·40 cites·13 claims
2184US6274638B1Method for production of porous cross-linked polymer materialNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Aug 14, 2001·21 cites·10 claims
2284US6087002AWater absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Jul 11, 2000·45 cites·4 claims
2381US6797735B2Process for producing porous polymerNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Sep 28, 2004·17 cites·7 claims
2481US6599989B2Water-absorbent agents containing polycarboxylic amine chelating agentsNIPPON SKOKUBAI CO LTD·Filed 1999·Granted Jul 29, 2003·48 cites·30 claims
2580US7250459B2Absorbent resin compositionNIPPON CATALYTIC CHEM IND·Filed 2005·Granted Jul 31, 2007·4 cites·11 claims
2680US6822010B2Method for production of porous materialNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Nov 23, 2004·16 cites·15 claims
2780US6630519B2Process for producing porous polymerNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Oct 7, 2003·16 cites·22 claims
2880US6127454AWater-absorbing agent and production process thereforNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Oct 3, 2000·33 cites·16 claims
2980US5866678AAbsorbent and method for production of absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Feb 2, 1999·37 cites·21 claims
3075US6964998B2Water-absorbing agent and its production process and useNIPPON CATALYTIC CHEM IND·Filed 2003·Granted Nov 15, 2005·12 cites·7 claims
3172US5760080AAbsorbing agent, process of manufacturing same, and absorbent product containing sameNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Jun 2, 1998·102 cites·22 claims
3270US7420018B2Water-absorbing agent production process with surface crosslinking and ion blockingNIPPON CATALYTIC CHEM IND·Filed 2005·Granted Sep 2, 2008·5 cites·16 claims
3365US6110992AWater-absorbing agent and production process thereforNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Aug 29, 2000·15 cites·9 claims
3464US5389722AHydrophilic resin and method for production thereofNIPPON CATALYTIC CHEM IND·Filed 1993·Granted Feb 14, 1995·14 cites·24 claims
3558US8426670B2Absorbent structure, absorbent article, water-absorbent resin, and its production process and evaluation methodNAGASUNA KINYA·Filed 2002·Granted Apr 23, 2013·19 cites·8 claims
3658US5475062AMethod for surface treatment of absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1994·Granted Dec 12, 1995·12 cites·14 claims
3756US6476155B1Method of producing a hydrophilic resinNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Nov 5, 2002·1 cites·8 claims
3856US6150582AAbsorbent article and production process thereforNIPPON CATALYTIC CHEM IND·Filed 1998·Granted Nov 21, 2000·39 cites·12 claims
3943US6180724B1Process for manufacturing an absorbing agent and absorbent materialNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Jan 30, 2001·23 cites·9 claims
4042USRE38444EAbsorbing agent, process of manufacturing same, and absorbent product containing sameNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Feb 24, 2004·16 cites·30 claims
4142US2003181115A1Absorbent structure, its production process, and absorbent article comprising said absorbent structureFiled 2003·Application pending·0 cites
4240US6103785AWater-absorbing agent and its production process and useNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Aug 15, 2000·13 cites·25 claims
4338US6054541AProcess of manufacturing precursor of an absorbing agentNIPPON CATALYTIC CHEM IND·Filed 1998·Granted Apr 25, 2000·17 cites·8 claims
4431US2002013394A1Water-absorbent agent, method for production thereof, and water- absorbent compositionFiled 1996·Application pending·0 cites

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →