P

Inventor

HARADA NOBUYUKI

JP55 patents
⚠️ This page may combine multiple inventors who share the name “HARADA NOBUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON CATALYTIC CHEM IND

38 patents
US6809158B2Oct 26, 2004

Water-absorbing agent and process for producing the same

NIPPON CATALYTIC CHEM IND187 citations99
US5610208AMar 11, 1997

Water-absorbent agent, method for production thereof, and water-absorbent composition

NIPPON CATALYTIC CHEM IND150 citations99
US6444744B1Sep 3, 2002

Hydrophilic resin, absorbent article, and acrylic acid for polymerization

NIPPON CATALYTIC CHEM IND114 citations98
US6254990B1Jul 3, 2001

Surface-crosslinking process for water-absorbent resin

NIPPON CATALYTIC CHEM IND152 citations98
US6107358AAug 22, 2000

Water-absorbent resin and method for production thereof

NIPPON CATALYTIC CHEM IND174 citations98
US5985944ANov 16, 1999

Water-absorbent resin, process for production thereof, and water-absorbent resin composition

NIPPON CATALYTIC CHEM IND125 citations98
US5853867ADec 29, 1998

Absorbent composite, method for production thereof, and absorbent article

NIPPON CATALYTIC CHEM IND117 citations98
US5382610AJan 17, 1995

Water absorbent matter and method for producing it as well as water absorbent and method for producing it

NIPPON CATALYTIC CHEM IND175 citations98
US5574121ANov 12, 1996

Process for preparing an absorbent resin crosslinked with a mixture of trimethylolpropane diacrylate and triacrylate

NIPPON CATALYTIC CHEM IND142 citations97
US6576713B2Jun 10, 2003

Water-absorbent resin powder and production process therefor

NIPPON CATALYTIC CHEM IND56 citations96
US6187872B1Feb 13, 2001

Water-absorbent agent and method for manufacturing the same

NIPPON CATALYTIC CHEM IND58 citations96
US5981070ANov 9, 1999

Water-absorbent agent powders and manufacturing method of the same

NIPPON CATALYTIC CHEM IND70 citations96
US4959060ASep 25, 1990

Body fluid-adsorbing article

NIPPON CATALYTIC CHEM IND63 citations96
US4920202AApr 24, 1990

Method for production of hydrophilic polymer from hydrated gel polymer

NIPPON CATALYTIC CHEM IND67 citations96
US5830543ANov 3, 1998

Gelling material for aqueous fluids

NIPPON CATALYTIC CHEM IND83 citations95
US6372852B2Apr 16, 2002

Water-absorbing composition and production process for water-absorbing agent

NIPPON CATALYTIC CHEM IND59 citations94
US5079034AJan 7, 1992

Method for manufacturing a water absorbent composite by applying an aqueous polymerizable solution to a substrate and polymerizing the coating against polymerization inner surfaces

NIPPON CATALYTIC CHEM IND44 citations93
US6992144B2Jan 31, 2006

Water-absorbent agent, method for production thereof, and water-absorbent composition

NIPPON CATALYTIC CHEM IND15 citations92
US6399668B1Jun 4, 2002

Water absorbent resin

NIPPON CATALYTIC CHEM IND20 citations92
US6333109B1Dec 25, 2001

Water-swellable crosslinked polymer composition and production

NIPPON CATALYTIC CHEM IND28 citations92
US6251960B1Jun 26, 2001

Process for production of water absorbent resin

NIPPON CATALYTIC CHEM IND30 citations92
US6184433B1Feb 6, 2001

Pressure-resistant absorbent resin, disposable diaper using the resin, and absorbent resin, and method for production thereof

NIPPON CATALYTIC CHEM IND50 citations92
US6150469ANov 21, 2000

Method of producing a hydrophilic resin

NIPPON CATALYTIC CHEM IND41 citations92
US6100305AAug 8, 2000

Method of production of water-absorbing resin

NIPPON CATALYTIC CHEM IND40 citations92
US5792855AAug 11, 1998

Water-absorbent resins and manufacturing methods thereof

NIPPON CATALYTIC CHEM IND22 citations92
US5599763AFeb 4, 1997

Absorbent material, absorbent body, and method for production thereof

NIPPON CATALYTIC CHEM IND29 citations92
US5368918ANov 29, 1994

Absorbent material comprising absorbent polymeric particulate material coated with synthetic pulp

NIPPON CATALYTIC CHEM IND37 citations92
US5195999AMar 23, 1993

Absorbent body and absorbent article

NIPPON CATALYTIC CHEM IND41 citations92
US6410616B1Jun 25, 2002

Crosslinked polymer particle and its production process and use

NIPPON CATALYTIC CHEM IND51 citations91
US5115011AMay 19, 1992

Process for producing quality-improved water-absorbent polymers and products

NIPPON CATALYTIC CHEM IND44 citations89
US6342652B1Jan 29, 2002

Water-swellable crosslinked polymer, its composition, and their production processes and uses

NIPPON CATALYTIC CHEM IND17 citations84
US6103425AAug 15, 2000

Liquid-absorbing resin, manufacturing method thereof and gel composition

NIPPON CATALYTIC CHEM IND8 citations74
US5098775AMar 24, 1992

Body fluid-absorbing article

NIPPON CATALYTIC CHEM IND15 citations74
US6391994B2May 21, 2002

Production process for vinylpyrrolidone polymer

NIPPON CATALYTIC CHEM IND6 citations72
US7495056B2Feb 24, 2009

Water-absorbing agent and production process therefor, and water-absorbent structure

NIPPON CATALYTIC CHEM IND2 citations63
US7250459B2Jul 31, 2007

Absorbent resin composition

NIPPON CATALYTIC CHEM IND4 citations63
US6881792B2Apr 19, 2005

Production processes for basic water-absorbent resin and water-absorbing agent, and use thereof

NIPPON CATALYTIC CHEM IND6 citations62
US6110984AAug 29, 2000

Water-swellable crosslinked polymer, production process therefor, and measurement method for pore volume of swollen crosslinked polymer

NIPPON CATALYTIC CHEM IND5 citations62

DAINIPPON PRINTING CO LTD

5 patents

NIPPON SHOKUBAL CO LTD

1 patent

TEIJIN LTD

1 patent

NIPPON SHIKUBAI CO LTD

1 patent

IBM

1 patent

MISHIMA KOSAN CO LTD

1 patent

FUJIMARU HIROTAMA

1 patent

HARADA NOBUYUKI

1 patent

Showing the top 50 of 55 patents by PatentIndex Score.