Inventor
MATSUMOTO MASAHITO
JP70 patents
Patents
50 patentsUS5053179AOct 1, 1991
Process for producing a multilayer molded article
SUMITOMO CHEMICAL CO125 citations97
US5653534AAug 5, 1997
Screw apparatus and method for supplying reinforcing fiber-containing molten resin using the apparatus
SUMITOMO CHEMICAL CO95 citations96
US5424020AJun 13, 1995
Method for producing molded article of fiber-reinforced thermoplastic resin
SUMITOMO CHEMICAL CO50 citations96
US5281376AJan 25, 1994
Method for producing polypropylene resin article having skin material lined with foamed layer
SUMITOMO CHEMICAL CO58 citations96
US5275776AJan 4, 1994
Method for producing molded article of fiber-reinforced thermoplastic resin
SUMITOMO CHEMICAL CO48 citations96
US5770134AJun 23, 1998
Manufacturing method for multi-layer molded-product consisting of a base having holes through and a covering material
SUMITOMO CHEMICAL CO17 citations93
US5618567AApr 8, 1997
Manufacturing device for producing a multi-layer molded product
SUMITOMO CHEMICAL CO32 citations93
US6080463AJun 27, 2000
Impact energy absorptive structures
SUMITOMO CHEMICAL CO16 citations92
US5830402ANov 3, 1998
Process for producing multilayer molded articles
SUMITOMO CHEMICAL CO28 citations92
US5820813AOct 13, 1998
Method for producing multilayer molded article
SUMITOMO CHEMICAL CO29 citations92
US5783132AJul 21, 1998
Process for producing a fiber-reinforced thermoplastic resin molded article
SUMITOMO CHEMICAL CO24 citations92
US5759464AJun 2, 1998
Methods for manufacturing multilayer moldings
SUMITOMO CHEMICAL CO32 citations92
US5672309ASep 30, 1997
Method for producing molded article of fiber reinforced thermoplastic resin
SUMITOMO CHEMICAL CO39 citations92
US5543094AAug 6, 1996
Method of forming a multilayer molded article
SUMITOMO CHEMICAL CO33 citations92
US5509990AApr 23, 1996
Process for producing a multilayer molded article
SUMITOMO CHEMICAL CO33 citations92
US5506029AApr 9, 1996
Fiber reinforced thermoplastic resin shaped article
SUMITOMO CHEMICAL CO33 citations92
US5356588AOct 18, 1994
Method for forming a fiber reinforced thermoplastic resin shaped article
SUMITOMO CHEMICAL CO28 citations92
US5352397AOct 4, 1994
Process for producing multilayer molded article including folding of a skin material over a back of a resin material
SUMITOMO CHEMICAL CO41 citations92
US5308570AMay 3, 1994
Process for producing multilayer molded article
SUMITOMO CHEMICAL CO52 citations92
US5252269AOct 12, 1993
Method for molding polypropylene resin
SUMITOMO CHEMICAL CO41 citations92
US5178708AJan 12, 1993
Method for producing multi-layer molded article
SUMITOMO CHEMICAL CO40 citations92
US5154872AOct 13, 1992
Process for producing a multilayer molded article
SUMITOMO CHEMICAL CO48 citations92
US4873041AOct 10, 1989
Process for producing a multilayer molded article
SUMITOMO CHEMICAL CO30 citations92
US5756017AMay 26, 1998
Method of simulating resin behavior in press molding
SUMITOMO CHEMICAL CO34 citations91
US5622667AApr 22, 1997
Process for producing skin-integrated laminate
SUMITOMO CHEMICAL CO22 citations91
US5795526AAug 18, 1998
Process for producing multilayer molded article
SUMITOMO CHEMICAL CO24 citations90
US5277865AJan 11, 1994
Gas-assisted injection molding process for producing hollow molded article
SUMITOMO CHEMICAL CO29 citations90
US5783133AJul 21, 1998
Method for making a multilayer molded article
SUMITOMO CHEMICAL CO27 citations89
US6202947B1Mar 20, 2001
Discharge device for mixing and discharging solids of thermoplastic substance and fibers and plasticizing device having this device
SUMITOMO CHEMICAL CO15 citations84
US6203744B1Mar 20, 2001
Method for producing molded article of thermoplastic resin
SUMITOMO CHEMICAL CO18 citations84
US6030573AFeb 29, 2000
Process for manufacturing thermoplastic resin moldings
SUMITOMO CHEMICAL CO20 citations82
US5925435AJul 20, 1999
Impact energy absorptive structures
SUMITOMO CHEMICAL CO16 citations82
US5714175AFeb 3, 1998
Apparatus for producing a multilayer molded article
SUMITOMO CHEMICAL CO15 citations82
US5672403ASep 30, 1997
Multilayer molded article
SUMITOMO CHEMICAL CO15 citations82
US5585061ADec 17, 1996
Method for producing a multilayer molded article
SUMITOMO CHEMICAL CO18 citations82
US5478627ADec 26, 1995
Laminate
SUMITOMO CHEMICAL CO19 citations82
US5130075AJul 14, 1992
Method for press molding thermoplastic resin
SUMITOMO CHEMICAL CO21 citations82
US6382949B1May 7, 2002
Metal mold for producing a synthetic resin molded product in a compression-molding method
SUMITOMO CHEMICAL CO7 citations74
US6328924B1Dec 11, 2001
Instrument panel
SUMITOMO CHEMICAL CO7 citations74
US6294121B1Sep 25, 2001
Mold for compression molding a resin article
SUMITOMO CHEMICAL CO8 citations74
US5593631AJan 14, 1997
Method for molding resin articles
SUMITOMO CHEMICAL CO17 citations74
US5468039ANov 21, 1995
Instrument panel for automobile
SUMITOMO CHEMICAL CO11 citations74
US5431366AJul 11, 1995
See-through concrete form
SUMITOMO CHEMICAL CO14 citations74
US5336463AAug 9, 1994
Mold for press molding and process for press molding of thermoplastic resin using the same
SUMITOMO CHEMICAL CO11 citations74
US5304579AApr 19, 1994
Method for molding polypropylene resin
SUMITOMO CHEMICAL CO9 citations74
US6348170B1Feb 19, 2002
Process for producing a multilayer molded article
SUMITOMO CHEMICAL CO9 citations73
US5962034AOct 5, 1999
Mold for manufacturing multilayer moldings and methods for manufacturing multilayer moldings
SUMITOMO CHEMICAL CO14 citations73
US5618607AApr 8, 1997
Plastic-made reinforced structure
SUMITOMO CHEMICAL CO11 citations73
US5122320AJun 16, 1992
Process for producing a multilayer article
SUMITOMO CHEMICAL CO17 citations73
US6231798B1May 15, 2001
Process for producing multi-layer molded product
SUMITOMO CHEMICAL CO12 citations72
Showing the top 50 of 70 patents by PatentIndex Score.