Inventor · disambiguated record
Kunihiko Ishizaki
Also filed as: ISHIZAKI KUNIHIKO
104 granted patents·11 pending applications·2,944 citations·filing 1988–2023
99Inventor score
Top patents by PatentIndex Score
115 records- 0198US6906159B2Water-absorbent resin, hydropolymer, process for producing them, and uses of themNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Jun 14, 2005·98 cites·2 claims
- 0298US6562879B1Water-absorbent resin powder and its production process and useNIPPON CATALYTIC CHEM IND·Filed 2000·Granted May 13, 2003·132 cites·23 claims
- 0398US6228930B1Water-absorbent resin granule-containing composition and production process for water-absorbent resin granuleNIPPON CATALYTIC CHEM IND·Filed 1998·Granted May 8, 2001·222 cites·14 claims
- 0497US7473470B2Particulate water absorbing agent with irregularly pulverized shapeNIPPON CATALYTIC CHEM IND·Filed 2005·Granted Jan 6, 2009·34 cites·20 claims
- 0597US7183456B2Water-absorbent resin and production process thereforNIPPON CATALYTIC CHEM IND·Filed 2004·Granted Feb 27, 2007·78 cites·9 claims
- 0697US6727345B2Continuous production process for water-absorbent resin powder and powder surface detector used thereforNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Apr 27, 2004·94 cites·11 claims
- 0796US8410223B2Production method for water-absorbing resinMATSUMOTO KOJI·Filed 2009·Granted Apr 2, 2013·18 cites·14 claims
- 0896US7378453B2Surface crosslinking treatment method of water-absorbing resin powderNIPPON CATALYTIC CHEM IND·Filed 2004·Granted May 27, 2008·68 cites·25 claims
- 0996US6297319B1Water-absorbing agent and production process thereforNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Oct 2, 2001·100 cites·23 claims
- 1096US6254990B1Surface-crosslinking process for water-absorbent resinNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Jul 3, 2001·152 cites·17 claims
- 1196US6071976AWater absorbing agent, manufacturing method thereof, and manufacturing machine thereofNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Jun 6, 2000·186 cites·50 claims
- 1296US5985944AWater-absorbent resin, process for production thereof, and water-absorbent resin compositionNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Nov 16, 1999·125 cites·19 claims
- 1395US8148485B2Production method for water-absorbing resinNOGI KOZO·Filed 2009·Granted Apr 3, 2012·17 cites·21 claims
- 1495US7193006B2Process for continuous production of water-absorbent resin productNIPPON CATALYTIC CHEM IND·Filed 2003·Granted Mar 20, 2007·56 cites·15 claims
- 1595US6444744B1Hydrophilic resin, absorbent article, and acrylic acid for polymerizationNIPPON CATALYTIC CHEM IND·Filed 1999·Granted Sep 3, 2002·114 cites·17 claims
- 1694US7091253B2Water-absorbent resin, hydropolymer, process for producing them, and uses of themNIPPON CATALYTIC CHEM IND·Filed 2004·Granted Aug 15, 2006·87 cites·6 claims
- 1794US6720389B2Water-absorbent resin and production process thereforNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Apr 13, 2004·42 cites·39 claims
- 1894US6458921B1Water-absorbent resin granule-containing composition and production process for water-absorbent resin granuleNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Oct 1, 2002·48 cites·21 claims
- 1993US9062140B2Polyacrylic acid (salt) water-absorbent resin, production process thereof, and acrylic acid used in polymerization for production of water-absorbent resinFUJIMARU HIROTAMA·Filed 2006·Granted Jun 23, 2015·18 cites·10 claims
- 2093US8519212B2Water-absorbent resin, hydropolymer, process for producing them, and uses of themDAIROKU YORIMICHI·Filed 2010·Granted Aug 27, 2013·11 cites·6 claims
- 2193US7741400B2Water-absorbent resin, hydropolymer, process for producing them, and uses of themNIPPON CATALYTIC CHEM IND·Filed 2006·Granted Jun 22, 2010·14 cites·1 claims
- 2293US7510988B2Particulate water-absorbing agent containing water-absorbent resin as a main componentNIPPON CATALYTIC CHEM IND·Filed 2005·Granted Mar 31, 2009·29 cites·13 claims
- 2393US6576713B2Water-absorbent resin powder and production process thereforNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Jun 10, 2003·56 cites·29 claims
- 2493US6388000B1Method for production of hydrophilic resinNIPPON CATALYTIC CHEM IND·Filed 1995·Granted May 14, 2002·71 cites·14 claims
- 2593US4920202AMethod for production of hydrophilic polymer from hydrated gel polymerNIPPON CATALYTIC CHEM IND·Filed 1988·Granted Apr 24, 1990·67 cites·17 claims
- 2692US7238743B2Production process for water-absorbent resinNIPPON CATALYTIC CHEM IND·Filed 2005·Granted Jul 3, 2007·15 cites·15 claims
- 2791US8596931B2Particulate water absorbing agent and method for producing the sameNAGASHIMA TERUHISA·Filed 2008·Granted Dec 3, 2013·24 cites·16 claims
- 2891US5981070AWater-absorbent agent powders and manufacturing method of the sameNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Nov 9, 1999·70 cites·43 claims
- 2990US8138292B2Method for producing particulate water—absorbing agent composed principally of water absorbing resinMATSUMOTO KOJI·Filed 2009·Granted Mar 20, 2012·9 cites·21 claims
- 3089US6716894B2Water-absorbent resin powder and its production process and usesNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Apr 6, 2004·78 cites·16 claims
- 3189US5610208AWater-absorbent agent, method for production thereof, and water-absorbent compositionNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Mar 11, 1997·150 cites·13 claims
- 3288US8765906B2Method for producing polyacrylic acid (salt) type water absorbent resin powderWATANABE YUSUKE·Filed 2011·Granted Jul 1, 2014·5 cites·20 claims
- 3388US6927268B2Production process for water-absorbent resinNIPPON CATALYTIC CHEM IND·Filed 2001·Granted Aug 9, 2005·26 cites·15 claims
- 3487US9580519B2Method and apparatus for producing polyacrylic acid (salt)-based water absorbent resinNOGI KOZO·Filed 2012·Granted Feb 28, 2017·4 cites·19 claims
- 3587US8791210B2Polyacrylic water-absorbent resin powder and method for producing the sameSAKAMOTO SHIGERU·Filed 2010·Granted Jul 29, 2014·5 cites·5 claims
- 3687US6667372B1Continuous manufacturing method of water-absorbent polymerNIPPON CATALYTIC CHEM IND·Filed 2000·Granted Dec 23, 2003·37 cites·29 claims
- 3787US6187872B1Water-absorbent agent and method for manufacturing the sameNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Feb 13, 2001·58 cites·37 claims
- 3886US7049366B2Acrylic acid composition and its production process, and process for producing water-absorbent resin using this acrylic acid composition, and water-absorbent resinNIPPON CATALYTIC CHEM IND·Filed 2002·Granted May 23, 2006·24 cites·47 claims
- 3986US6184433B1Pressure-resistant absorbent resin, disposable diaper using the resin, and absorbent resin, and method for production thereofNIPPON CATALYTIC CHEM IND·Filed 1998·Granted Feb 6, 2001·50 cites·26 claims
- 4085US8552134B2Method of producing polyacrylic acid (salt) water-absorbent resinFUJIMARU HIROTAMA·Filed 2007·Granted Oct 8, 2013·9 cites·19 claims
- 4185US5797893AAbsorbing agent composition, absorbent material, and absorbent product containing absorbent materialNIPPON CATALYTIC CHEM IND·Filed 1996·Granted Aug 25, 1998·140 cites·12 claims
- 4284US8648161B2Polyacrylic acid (salt) -based water-absorbent resin and a method for producing itFUJINO SHINICHI·Filed 2010·Granted Feb 11, 2014·5 cites·14 claims
- 4384US6998447B2Method for production of hydrophilic resinNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Feb 14, 2006·16 cites·25 claims
- 4484US6992144B2Water-absorbent agent, method for production thereof, and water-absorbent compositionNIPPON CATALYTIC CHEM IND·Filed 2002·Granted Jan 31, 2006·15 cites·11 claims
- 4583US8809475B2Production method for water-absorbent resinMATSUMOTO KOJI·Filed 2010·Granted Aug 19, 2014·2 cites·20 claims
- 4682US8802800B2Production method for water-absorbent resinFUJINO SHINICHI·Filed 2010·Granted Aug 12, 2014·2 cites·22 claims
- 4781US8481664B2Particulate water absorbing agent including polyacrylic acid (polyacrylate) based water absorbing resin as a principal component, method for production thereof, water-absorbent core and absorbing article in which the particulate water absorbing agent is usedDAIROKU YORIMICHI·Filed 2006·Granted Jul 9, 2013·8 cites·10 claims
- 4880US9518133B2Hydrophilic polyacrylic acid (salt) resin and manufacturing method thereofFUJINO SHINICHI·Filed 2010·Granted Dec 13, 2016·3 cites·13 claims
- 4980US7250459B2Absorbent resin compositionNIPPON CATALYTIC CHEM IND·Filed 2005·Granted Jul 31, 2007·4 cites·11 claims
- 5079US9044525B2Polyacrylic acid (salt)-based water absorbent resin powder and method for producing the sameTORII KAZUSHI·Filed 2012·Granted Jun 2, 2015·2 cites·20 claims
Showing the top 50 of 115 patent records by PatentIndex Score.
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