Inventor
MATSUI SHIGEKAZU
JP31 patents
⚠️ This page may combine multiple inventors who share the name “MATSUI SHIGEKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI CHEMICALS INC
20 patentsUS6309997B1Oct 30, 2001
Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and α-olefin/conjugated diene copolymers
MITSUI CHEMICALS INC186 citations98
US7300903B2Nov 27, 2007
Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and α-olefin/conjugated diene copolymers
MITSUI CHEMICALS INC56 citations96
US6875718B2Apr 5, 2005
Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and α-olefin/conjugated diene copolymers
MITSUI CHEMICALS INC40 citations96
US6838540B2Jan 4, 2005
Olefin polymer and production processes thereof
MITSUI CHEMICALS INC33 citations92
US6770723B2Aug 3, 2004
α-olefin/conjugated diene copolymers
MITSUI CHEMICALS INC28 citations92
US6593266B1Jul 15, 2003
Olefin polymerization catalyst and polymerization process
MITSUI CHEMICALS INC42 citations92
US6399724B1Jun 4, 2002
Catalyst for olefin polymerization and method of polymerizing olefin
MITSUI CHEMICALS INC41 citations92
US6369177B1Apr 9, 2002
Catalyst for olefin polymerization and method of polymerizing olefin
MITSUI CHEMICALS INC34 citations92
US6291718B1Sep 18, 2001
Process for preparing hydroperoxides
MITSUI CHEMICALS INC18 citations92
US6897176B2May 24, 2005
Olefin polymerization catalyst and process for producing olefin polymer with the catalyst
MITSUI CHEMICALS INC20 citations91
US7053159B2May 30, 2006
Process for producing polar olefin copolymer and polar olefin copolymer obtained thereby
MITSUI CHEMICALS INC13 citations84
US7009014B2Mar 7, 2006
Process for the polymerization olefins
MITSUI CHEMICALS INC14 citations84
US6451728B1Sep 17, 2002
Olefin polymerization catalyst and process for olefin polymerization
MITSUI CHEMICALS INC20 citations84
US6476276B2Nov 5, 2002
Process for preparation of hydroperoxides
MITSUI CHEMICALS INC14 citations83
US6019911AFeb 1, 2000
Polycyclic compound, liquid crystal material consisting of the polycyclic compound, liquid crystal composition comprising the liquid crystal material, and liquid crystal element
MITSUI CHEMICALS INC8 citations71
US6313243B1Nov 6, 2001
Catalyst for olefin polymerization and method of polymerizing olefin
MITSUI CHEMICALS INC6 citations63
US7566761B2Jul 28, 2009
Olefin polymer and process for preparing the same
MITSUI CHEMICALS INC3 citations62
US7312284B2Dec 25, 2007
Process for producing polar olefin copolymer and polar olefin copolymer obtained thereby
MITSUI CHEMICALS INC1 citations52
US6028193AFeb 22, 2000
Method for producing aryl aklyl hydroperoxides
MITSUI CHEMICALS INC0 citations51
US5945572AAug 31, 1999
Method for producing aryl alkyl hydroperoxides
MITSUI CHEMICALS INC0 citations51
HOYA CORP
6 patentsUS6339197B1Jan 15, 2002
Multilayer printed circuit board and the manufacturing method
HOYA CORP153 citations96
USD568839SMay 13, 2008
Photomask blank
HOYA CORP9 citations82
USD543160SMay 22, 2007
Photomask blank
HOYA CORP13 citations82
US7470865B2Dec 30, 2008
Multilayer printed wiring board and a process of producing same
HOYA CORP15 citations81
US4563407AJan 7, 1986
Photo-mask blank comprising a shading layer having a variable etch rate
HOYA CORP20 citations78
US4696877ASep 29, 1987
Photo-mask blank comprising a shading layer having a variable etch rate
HOYA CORP12 citations69