Inventor
SADATOSHI HAJIME
JP21 patents
Patents
21 patentsUS6441081B1Aug 27, 2002
Polypropylene-base resin composition and products of injection molding thereof
SUMITOMO CHEMICAL CO92 citations96
US6214952B1Apr 10, 2001
Propylene random copolymer and film laminate thereof
SUMITOMO CHEMICAL CO44 citations95
US5641828AJun 24, 1997
Polypropylene compositions and film thereof
SUMITOMO CHEMICAL CO63 citations95
US5852100ADec 22, 1998
Thermoplastic resin composition
SUMITOMO CHEMICAL CO29 citations92
US5723527AMar 3, 1998
Thermoplastic resin composition and injection molded article thereof
SUMITOMO CHEMICAL CO25 citations92
US4675247AJun 23, 1987
Laminated polypropylene film
SUMITOMO CHEMICAL CO28 citations92
US4820775AApr 11, 1989
Alpha-olefin block copolymer particles and process for the production thereof
SUMITOMO CHEMICAL CO27 citations91
US5654372AAug 5, 1997
Polypropylene composition and the film thereof
SUMITOMO CHEMICAL CO18 citations83
US5141994AAug 25, 1992
Crystalline polypropylene and crystalline polypropylene composition
SUMITOMO CHEMICAL CO19 citations78
US6087443AJul 11, 2000
Thermoplastic resin composition
SUMITOMO CHEMICAL CO10 citations74
US4337326AJun 29, 1982
Process for producing propylene-ethylene block copolymers
SUMITOMO CHEMICAL CO13 citations74
US4254237AMar 3, 1981
Process for producing propylene-ethylene block copolymers
SUMITOMO CHEMICAL CO7 citations74
US5914363AJun 22, 1999
Crystalline ethylene-propylene copolymer with ethylene copolymer(s) and/or alkenyl aromatic-grafted rubber
SUMITOMO CHEMICAL CO15 citations73
US5340878AAug 23, 1994
Polypropylene composition and film thereof
SUMITOMO CHEMICAL CO11 citations73
US4761462AAug 2, 1988
Packaging propylene copolymer film
SUMITOMO CHEMICAL CO19 citations73
US4670529AJun 2, 1987
Packaging shrink film
SUMITOMO CHEMICAL CO12 citations73
US5830968ANov 3, 1998
Propylene random copolymer and film laminate thereof
SUMITOMO CHEMICAL CO6 citations72
US5639537AJun 17, 1997
Polypropylene resin composition for oriented film and oriented film of the composition
SUMITOMO CHEMICAL CO8 citations72
US4382065AMay 3, 1983
Fluidized bed apparatus and method of using
SUMITOMO CHEMICAL CO5 citations63
US4259461AMar 31, 1981
Process for producing propylene-ethylene block copolymers
SUMITOMO CHEMICAL CO3 citations63
US6451936B1Sep 17, 2002
Polypropylene random copolymer and film thereof
SUMITOMO CHEMICAL CO6 citations62