Inventor
OBATA YOICHI
JP10 patents
Patents
10 patentsUS6337377B1Jan 8, 2002
Process for producing olefin polymers, olefin-polymerizing catalyst and polyproylene for biaxially oriented film produced with said catalyst
SUMITOMO CHEMICAL CO38 citations92
US6127303AOct 3, 2000
Process for producing olefin polymers, olefin-polymerizing catalyst and polypropylene for biaxially oriented film produced with said catalyst
SUMITOMO CHEMICAL CO35 citations92
US5773129AJun 30, 1998
Polypropylene laminated film
SUMITOMO CHEMICAL CO23 citations92
US6639018B2Oct 28, 2003
Polypropylene resin composition and process for producing the same
SUMITOMO CHEMICAL CO23 citations91
US6001293ADec 14, 1999
Process for producing polypropylene laminated film
SUMITOMO CHEMICAL CO8 citations73
US6812287B2Nov 2, 2004
Propylene-based resin composition and heat-shrinkable film
SUMITOMO CHEMICAL CO4 citations62
US6103841AAug 15, 2000
α-olefin polymers, α-olefin-polymerizing catalyst and process for producing α-olefin polymers
SUMITOMO CHEMICAL CO5 citations62
US7323252B2Jan 29, 2008
Biaxially oriented multilayer polypropylene film
SUMITOMO CHEMICAL CO4 citations61
US6699574B2Mar 2, 2004
Polypropylene-based resin composition for stretched film, process for producing the same and stretched film
SUMITOMO CHEMICAL CO3 citations61
US5635557AJun 3, 1997
Polypropylene composition and stretched film thereof
SUMITOMO CHEMICAL CO5 citations61