Inventor
IMA SEIICHIRO
JP19 patents
Patents
19 patentsUS5641828AJun 24, 1997
Polypropylene compositions and film thereof
SUMITOMO CHEMICAL CO63 citations95
US6057413AMay 2, 2000
Propylene-ethylene random copolymer film
SUMITOMO CHEMICAL CO35 citations92
US5115027AMay 19, 1992
Polypropylene stretched film
SUMITOMO CHEMICAL CO44 citations92
US4786562ANov 22, 1988
Polypropylene multi-layer film
SUMITOMO CHEMICAL CO30 citations92
US4769284ASep 6, 1988
Polypropylene multi-layer film
SUMITOMO CHEMICAL CO25 citations92
US4603174AJul 29, 1986
Stretched polypropylene film
SUMITOMO CHEMICAL CO37 citations92
US5654372AAug 5, 1997
Polypropylene composition and the film thereof
SUMITOMO CHEMICAL CO18 citations83
US5340878AAug 23, 1994
Polypropylene composition and film thereof
SUMITOMO CHEMICAL CO11 citations73
US5019442AMay 28, 1991
Overlay films
SUMITOMO CHEMICAL CO7 citations73
US4839234AJun 13, 1989
Polypropylene film
SUMITOMO CHEMICAL CO5 citations73
US4355144AOct 19, 1982
Process for producing a propylene-ethylene copolymer having improved stretchability
SUMITOMO CHEMICAL CO12 citations73
US4283463AAug 11, 1981
Molded products of polypropylene
SUMITOMO CHEMICAL CO12 citations73
US6667375B1Dec 23, 2003
Ethylene-α-olefin copolymer and polyethylene composition
SUMITOMO CHEMICAL CO7 citations72
US4433110AFeb 21, 1984
Process for producing propylene block copolymers
SUMITOMO CHEMICAL CO12 citations71
US4584239AApr 22, 1986
Stretched multilayer polypropylene film
SUMITOMO CHEMICAL CO2 citations63
US6451936B1Sep 17, 2002
Polypropylene random copolymer and film thereof
SUMITOMO CHEMICAL CO6 citations62
US4414373ANov 8, 1983
Propylene-ethylene copolymer having improved stretchability
SUMITOMO CHEMICAL CO4 citations62
US5726269AMar 10, 1998
Polypropylene film
SUMITOMO CHEMICAL CO4 citations61
US4927872AMay 22, 1990
Polypropylene film
SUMITOMO CHEMICAL CO1 citations52