Inventor
HATSUDA TAKUMI
JP39 patents
⚠️ This page may combine multiple inventors who share the name “HATSUDA TAKUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON CATALYTIC CHEM IND
38 patentsUS5250640AOct 5, 1993
Method for production of particulate hydrogel polymer and absorbent resin
NIPPON CATALYTIC CHEM IND185 citations99
US5140076AAug 18, 1992
Method of treating the surface of an absorbent resin
NIPPON CATALYTIC CHEM IND156 citations99
US4734478AMar 29, 1988
Water absorbing agent
NIPPON CATALYTIC CHEM IND535 citations99
US7183456B2Feb 27, 2007
Water-absorbent resin and production process therefor
NIPPON CATALYTIC CHEM IND78 citations98
US6562879B1May 13, 2003
Water-absorbent resin powder and its production process and use
NIPPON CATALYTIC CHEM IND132 citations98
US6241928B1Jun 5, 2001
Method for production of shaped hydrogel of absorbent resin
NIPPON CATALYTIC CHEM IND351 citations98
US6228930B1May 8, 2001
Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule
NIPPON CATALYTIC CHEM IND222 citations98
US6107358AAug 22, 2000
Water-absorbent resin and method for production thereof
NIPPON CATALYTIC CHEM IND174 citations98
US5164459ANov 17, 1992
Method for treating the surface of an absorbent resin
NIPPON CATALYTIC CHEM IND132 citations98
US6720389B2Apr 13, 2004
Water-absorbent resin and production process therefor
NIPPON CATALYTIC CHEM IND42 citations96
US6576713B2Jun 10, 2003
Water-absorbent resin powder and production process therefor
NIPPON CATALYTIC CHEM IND56 citations96
US6388000B1May 14, 2002
Method for production of hydrophilic resin
NIPPON CATALYTIC CHEM IND71 citations96
US6291636B1Sep 18, 2001
Manufacturing method of absorbent resin
NIPPON CATALYTIC CHEM IND73 citations96
US6174978B1Jan 16, 2001
Production process of water-absorbent resin
NIPPON CATALYTIC CHEM IND72 citations96
US6140395AOct 31, 2000
Method of producing hydrophilic resin
NIPPON CATALYTIC CHEM IND50 citations96
US6133193AOct 17, 2000
Absorbent resin composition and method for production thereof
NIPPON CATALYTIC CHEM IND80 citations96
US5624967AApr 29, 1997
Water-absorbing resin and process for producing same
NIPPON CATALYTIC CHEM IND87 citations96
US5275773AJan 4, 1994
Method for production of particulate hydrated gel polymer and absorbent resin
NIPPON CATALYTIC CHEM IND105 citations96
US5229488AJul 20, 1993
Method for manufacture of an absorbent resin
NIPPON CATALYTIC CHEM IND61 citations96
US4920202AApr 24, 1990
Method for production of hydrophilic polymer from hydrated gel polymer
NIPPON CATALYTIC CHEM IND67 citations96
US6817557B2Nov 16, 2004
Process for transporting, storing, and producing a particulate water-absorbent resin
NIPPON CATALYTIC CHEM IND71 citations95
US6458921B1Oct 1, 2002
Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule
NIPPON CATALYTIC CHEM IND48 citations95
US5518761AMay 21, 1996
Absorbent material absorbent article, and method for production thereof
NIPPON CATALYTIC CHEM IND49 citations95
US6998447B2Feb 14, 2006
Method for production of hydrophilic resin
NIPPON CATALYTIC CHEM IND16 citations93
US6164455ADec 26, 2000
Process for classifying particulate hydrophilic polymer and sieving device
NIPPON CATALYTIC CHEM IND54 citations93
US4985514AJan 15, 1991
Method for production of water absorbent resin
NIPPON CATALYTIC CHEM IND45 citations93
US6586549B1Jul 1, 2003
Water-absorbing composition and its use
NIPPON CATALYTIC CHEM IND23 citations92
US6207772B1Mar 27, 2001
Method for production of cross-linked polymer
NIPPON CATALYTIC CHEM IND33 citations92
US6194531B1Feb 27, 2001
Method for production of cross-linked polymer
NIPPON CATALYTIC CHEM IND40 citations92
US6187902B1Feb 13, 2001
Production process of hydrophilic crosslinked polymer
NIPPON CATALYTIC CHEM IND42 citations92
US5338810AAug 16, 1994
Method for production of acrylate and acrylate-containing polymer
NIPPON CATALYTIC CHEM IND27 citations92
US5210298AMay 11, 1993
Method for production of acrylate and acrylate-containing polymer
NIPPON CATALYTIC CHEM IND29 citations92
US5720736AFeb 24, 1998
Absorbent material, absorbent article, and method for production thereof
NIPPON CATALYTIC CHEM IND26 citations91
US6667372B1Dec 23, 2003
Continuous manufacturing method of water-absorbent polymer
NIPPON CATALYTIC CHEM IND37 citations90
US7420018B2Sep 2, 2008
Water-absorbing agent production process with surface crosslinking and ion blocking
NIPPON CATALYTIC CHEM IND5 citations74
US7078458B2Jul 18, 2006
Method for production of hydrophilic resin
NIPPON CATALYTIC CHEM IND9 citations74
US5807361ASep 15, 1998
Blood-absorbent resin composition and absorbent articles
NIPPON CATALYTIC CHEM IND10 citations74
US7153910B2Dec 26, 2006
Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule
NIPPON CATALYTIC CHEM IND9 citations73