Inventor · disambiguated record
Ryuma Kuroda
Also filed as: KURODA RYUMA
26 granted patents·27 pending applications·230 citations·filing 1993–2011
96Inventor score
Top patents by PatentIndex Score
53 records- 0187US7972734B2Process for producing polymer electrolyte emulsionSUMITOMO CHEMICAL CO·Filed 2007·Granted Jul 5, 2011·8 cites·5 claims
- 0285US5854326AGas barrier resin composition and process for producing the sameSUMITOMO CHEMICAL CO·Filed 1996·Granted Dec 29, 1998·43 cites·14 claims
- 0384US7365815B2Phase retardation film and liquid crystal display device including the sameSUMITOMO CHEMICAL CO·Filed 2005·Granted Apr 29, 2008·15 cites·12 claims
- 0482US6638988B2Porous film, separator for cell, and cellSUMITOMO CHEMICAL CO·Filed 2001·Granted Oct 28, 2003·22 cites·8 claims
- 0581US6805930B2Thermoplastic resin sheet and containerSUMITOMO CHEMICAL CO·Filed 2001·Granted Oct 19, 2004·17 cites·11 claims
- 0677US8049105B2Porous electrodes, devices including the porous electrodes, and methods for their productionSUMITOMO CHEMICAL CO·Filed 2005·Granted Nov 1, 2011·8 cites·15 claims
- 0774US7282109B2Method for producing laminated porous polyolefin film and laminated porous polyolefin filmSUMITOMO CHEMICAL CO·Filed 2004·Granted Oct 16, 2007·11 cites·2 claims
- 0867US6885415B2Optical member and optical product provided therewithSUMITOMO CHEMICAL CO·Filed 2002·Granted Apr 26, 2005·8 cites·12 claims
- 0964US6399667B1Process for producing foamed resin articleSUMITOMO CHEMICAL CO·Filed 2000·Granted Jun 4, 2002·5 cites·2 claims
- 1064US6087433AResin compositionSUMITOMO CHEMICAL CO·Filed 1998·Granted Jul 11, 2000·17 cites·1 claims
- 1162US6908668B2Foamed polyolefin resin sheetSUMITOMO CHEMICAL CO·Filed 2001·Granted Jun 21, 2005·4 cites·1 claims
- 1261US6685460B2Extrusion molding machineSUMITOMO CHEMICAL CO·Filed 2001·Granted Feb 3, 2004·4 cites·9 claims
- 1359US5869573AResin composition and shaped article having a layer comprising the sameSUMITOMO CHEMICAL CO·Filed 1997·Granted Feb 9, 1999·14 cites·9 claims
- 1457US6852270B2Production method of drawn filmSUMITOMO CHEMICAL CO·Filed 2002·Granted Feb 8, 2005·1 cites·15 claims
- 1557US6352785B1Shrinkable filmSUMITOMO CHEMICAL CO·Filed 1999·Granted Mar 5, 2002·13 cites·23 claims
- 1656US2010015515A1Laminated porous film and separator for nonaqueous electrolyte secondary batterySUMITOMO CHEMICAL CO·Filed 2007·Application pending·0 cites
- 1755US6596783B2Process for producing foamed resin articleSUMITOMO CHEMICAL CO·Filed 2002·Granted Jul 22, 2003·1 cites·5 claims
- 1854US7223806B2Manufacturing method of film-like materials of resin and film-like materials of resinSUMITOMO CHEMICAL CO·Filed 2002·Granted May 29, 2007·1 cites·12 claims
- 1954US6083629AResin composition and shaped article having a layer comprising the sameSUMITOMO CHEMICAL CO·Filed 1998·Granted Jul 4, 2000·12 cites·13 claims
- 2053US7049361B2Polyolefin series resinfilm, composition for preparing the same, process for preparing the composition for preparing the same, and apparatus for preparing the sameSUMITOMO CHEMICAL CO·Filed 2002·Granted May 23, 2006·1 cites·10 claims
- 2153US2010159351A1Membrane-electrode assembly, and membrane-electrode-(gas diffusion layer) assembly and solid polymer fuel cell each comprising the sameSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 2252US2012008253A1Porous electrodes, devices including the porous electrodes, and methods for their productionKURODA RYUMA·Filed 2011·Application pending·0 cites
- 2352US2004213983A1Multilayer polyolefin foamed sheet and method and apparatus for producing the sameSUMITOMO CHEMICAL CO·Filed 2004·Application pending·0 cites
- 2452US2009202888A1Polymer electrolyte emulsion and use thereofSUMITOMO CHEMICAL CO·Filed 2007·Application pending·0 cites
- 2551US2007166591A1Polymer electrolyte composition and application thereofSUMITOMO CHEMICAL CO·Filed 2007·Application pending·0 cites
- 2651US2010068589A1Membrane-electrode assemblySUMITOMO CHEMICAL CO·Filed 2007·Application pending·0 cites
- 2750US2010190085A1Membrane-electrode assembly, method for producing the same and solid polymer fuel cellSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 2850US2010159350A1Membrane-electrode assembly, method for production thereof, and solid polymer fuel cellSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 2950US2010178585A1Film-electrode assembly, film-electrode-gas diffusion layer assembly having the same, solid state polymer fuel cell, and film-electrode assembly manufacturing methodSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 3050US2010167162A1Membrane-electrode assembly, method for producing the same and solid polymer fuel cellSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 3149US2010040953A1Porous film and separator for nonaqueous electrolyte secondary batterySUMITOMO CHEMICAL CO·Filed 2007·Application pending·0 cites
- 3248US2009317684A1Polymer electrolyte membrane, laminate thereof, and their production methodsSUMITOMO CHEMICAL CO·Filed 2007·Application pending·0 cites
- 3348US2003186039A1Foamed polypropylene resin sheetSUMITOMO CHEMICAL CO·Filed 2003·Application pending·0 cites
- 3448US2009325029A1Membrane electrode assembly for fuel cell and fuel cellSUMITOMO CHEMICAL CO·Filed 2007·Application pending·0 cites
- 3548US2010183941A1Assembly of membrane, electrode, gas diffusion layer and gasket, method for producing the same, and solid polymer fuel cellSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 3647US6600143B2Formed polypropylene resin container for microwave cookingSUMITOMO CHEMICAL CO·Filed 2001·Granted Jul 29, 2003·7 cites·5 claims
- 3746US6918559B2Method of slitting a battery separator-use resin film object and such a battery separator-use resin film objectSUMITOMO CHEMICAL CO·Filed 2002·Granted Jul 19, 2005·0 cites·6 claims
- 3846US2005004244A1Propylene-based resin foamed sheet and container made from the sameSUMITOMO CHEMICAL CO·Filed 2004·Application pending·0 cites
- 3946US2006234031A1Porous film, and production method and applications thereofSUMITOMO CHEMICAL CO·Filed 2006·Application pending·0 cites
- 4045US2010196785A1Catalyst ink, method for producing catalyst ink, method for producing membrane-electrode assembly, membrane-electrode assembly produced by the method, and fuel cellSUMITOMO CHEMICAL CO·Filed 2008·Application pending·0 cites
- 4145US2002036363A1Foamed resin articleSUMITOMO CHEMICAL CO·Filed 2001·Application pending·0 cites
- 4244US2004198854A1Expandable resin composition and propylene-based resin foamSUMITOMO CHEMICAL CO·Filed 2004·Application pending·0 cites
- 4343US6884836B2Polyolefin based resin film and a composition for a polyolefin type resin filmSUMITOMO CHEMICAL CO·Filed 2002·Granted Apr 26, 2005·0 cites·4 claims
- 4442US2002098339A1Polyolefin resin foamed sheet and production method thereofSUMITOMO CHEMICAL CO·Filed 2001·Application pending·0 cites
- 4541US2002192454A1Porous filmSUMITOMO CHEMICAL CO·Filed 2002·Application pending·0 cites
- 4641US2005202231A1Filter material for micro-filterSUMITOMO CHEMICAL CO·Filed 2003·Application pending·0 cites
- 4740US6534580B1Resin materials and films made therefromSUMITOMO CHEMICAL CO·Filed 1998·Granted Mar 18, 2003·7 cites·25 claims
- 4840US2009208804A1Polymer electrolyte emulsion and use thereofKURODA RYUMA·Filed 2007·Application pending·0 cites
- 4940US2001006736A1Easily- tearable filmFiled 2000·Application pending·0 cites
- 5039US2004024120A1Resin composition comprising saponifield ethylene-vinyl acetate copolymer and formed product obtained using the sameFiled 2002·Application pending·0 cites
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →