Inventor
OHKAWA KENICHI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “OHKAWA KENICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO CHEMICAL CO
14 patentsUS6441081B1Aug 27, 2002
Polypropylene-base resin composition and products of injection molding thereof
SUMITOMO CHEMICAL CO92 citations96
US5723527AMar 3, 1998
Thermoplastic resin composition and injection molded article thereof
SUMITOMO CHEMICAL CO25 citations92
US6306972B1Oct 23, 2001
Polymer blend compositions based on isotactic polypropylene homopolymer and injected molded articles thereof
SUMITOMO CHEMICAL CO31 citations91
US6759465B1Jul 6, 2004
Thermoplastic resin composition and injection-molded object thereof
SUMITOMO CHEMICAL CO15 citations83
US5914363AJun 22, 1999
Crystalline ethylene-propylene copolymer with ethylene copolymer(s) and/or alkenyl aromatic-grafted rubber
SUMITOMO CHEMICAL CO15 citations73
US6767953B2Jul 27, 2004
Polypropylene resin composition and injection-molded article thereof
SUMITOMO CHEMICAL CO7 citations72
US6204336B1Mar 20, 2001
High-rigidity ethylene/propylene block copolymer and process for the production thereof
SUMITOMO CHEMICAL CO10 citations72
US6031034AFeb 29, 2000
Polypropylene-based resin composition
SUMITOMO CHEMICAL CO15 citations72
US5087654AFeb 11, 1992
Polypropylene resin composition
SUMITOMO CHEMICAL CO11 citations72
US6800681B2Oct 5, 2004
Basic magnesium sulfate fiber-reinforced polypropylene resin composition and injection molded article using the resin composition
SUMITOMO CHEMICAL CO10 citations70
US6593409B2Jul 15, 2003
Thermoplastic resin composition and injection-molded article thereof
SUMITOMO CHEMICAL CO6 citations61
US6384122B1May 7, 2002
Thermoplastic resin composition and injection molded article thereof
SUMITOMO CHEMICAL CO7 citations61
US6656987B2Dec 2, 2003
Polypropylene resin composition and injection molded article
SUMITOMO CHEMICAL CO5 citations57
US7351760B2Apr 1, 2008
Thermoplastic resin composition and its injection molded article
SUMITOMO CHEMICAL CO0 citations40