Inventor

KAWAKITA KAZUMITSU

JP10 patents

⚠️ This page may combine multiple inventors who share the name “KAWAKITA KAZUMITSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUI CHEMICALS INC

5 patents

US6284857B1Sep 4, 2001

Propylene polymer, propylene block copolymer, process for preparing said polymer and said block copolymer, and propylene polymer composition

MITSUI CHEMICALS INC40 citations96

US6274678B1Aug 14, 2001

Propylene polymer, propylene block copolymer, process for preparing said polymer and said block copolymer, and propylene polymer composition

MITSUI CHEMICALS INC43 citations96

US6630559B2Oct 7, 2003

Propylene polymer, propylene block copolymer, process for preparing said polymer and said block copolymer, and propylene polymer composition

MITSUI CHEMICALS INC19 citations92

US6545099B2Apr 8, 2003

Propylene polymer and block copolymer

MITSUI CHEMICALS INC22 citations92

US6323150B1Nov 27, 2001

Process for preparing solid titanium catalyst component, olefin polymerization catalyst, and olefin polymerization process

MITSUI CHEMICALS INC32 citations92

MITSUI PETROCHEMICAL IND

3 patents

US5192731AMar 9, 1993

Titanium catalyst components, process for preparing same, catalysts containing same for preparing ethylene polymers and process for preparing said ethylene polymers

MITSUI PETROCHEMICAL IND37 citations92

US5155078AOct 13, 1992

Titanium catalyst components, process for preparing same, catalysts containing same for preparing ethylene polymers and process for preparing said ethylene polymers

MITSUI PETROCHEMICAL IND22 citations92

US5324805AJun 28, 1994

Ethylene/pentene-1 copolymer and ethylene/pentene-1 copolymer composition

MITSUI PETROCHEMICAL IND15 citations73

MATSUNAGA KAZUHISA

2 patents

US8742040B2Jun 3, 2014

Solid titanium catalyst component, olefin polymerization catalyst, and olefin polymerization process

MATSUNAGA KAZUHISA11 citations83

US8822366B2Sep 2, 2014

Solid titanium catalyst component, catalyst for olefin polymerization and process for polymerizing olefin

MATSUNAGA KAZUHISA0 citations37