Inventor
TOHI YASUSHI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “TOHI YASUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI CHEMICALS INC
25 patentsUS6309997B1Oct 30, 2001
Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and α-olefin/conjugated diene copolymers
MITSUI CHEMICALS INC186 citations98
US6939928B1Sep 6, 2005
Metallocene compound, process for producing metallocene compound, olefin polymerization catalyst, process for producing polyolefin, and polyolefin
MITSUI CHEMICALS INC101 citations97
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
US7449533B2Nov 11, 2008
Metallocene compound, process for preparing metallocene compound, olefin polymerization catalyst, process for preparing polyolefin, and polyolefin
MITSUI CHEMICALS INC39 citations92
US7393965B2Jul 1, 2008
Crosslinked metallocene compound for olefin polymerization and method of polymerizing olefin with the same
MITSUI CHEMICALS INC29 citations92
US6770723B2Aug 3, 2004
α-olefin/conjugated diene copolymers
MITSUI CHEMICALS INC28 citations92
US6369177B1Apr 9, 2002
Catalyst for olefin polymerization and method of polymerizing olefin
MITSUI CHEMICALS INC34 citations92
US6004897ADec 21, 1999
Olefin polymerization catalyst, process for preparing olefin polymer, and olefin polymer
MITSUI CHEMICALS INC32 citations92
US7081493B2Jul 25, 2006
Automotive part made of polypropylene resin composition
MITSUI CHEMICALS INC23 citations91
US7795194B2Sep 14, 2010
Synthetic lubricating oil and lubricating oil composition
MITSUI CHEMICALS INC26 citations88
US7452946B2Nov 18, 2008
Ethylene polymer
MITSUI CHEMICALS INC15 citations83
US10435494B2Oct 8, 2019
Ethylene/α-olefin/non-conjugated polyene copolymer, and production process and use thereof
MITSUI CHEMICALS INC8 citations82
US8785574B2Jul 22, 2014
Bridged metallocene compound, olefin polymerization catalyst containing the same, and ethylene polymer obtained with the catalyst
MITSUI CHEMICALS INC12 citations82
US7700708B2Apr 20, 2010
Ethylene polymer and application thereof to moldings
MITSUI CHEMICALS INC12 citations82
US6444603B1Sep 3, 2002
Catalyst component for ethylenically unsaturated monomer polymerization, catalyst for ethylenically unsaturated monomer polymerization, and process for ethylenically unsaturated monomer polymerization using said catalyst
MITSUI CHEMICALS INC7 citations74
US6297333B1Oct 2, 2001
Olefin polymerization catalyst, process for preparing olefin polymer, and olefin polymer
MITSUI CHEMICALS INC7 citations74
US7847040B2Dec 7, 2010
α-olefin-based polymer composition, molded product formed from the composition, and novel polymer
MITSUI CHEMICALS INC7 citations72
US9340628B2May 17, 2016
Process for producing olefin polymer
MITSUI CHEMICALS INC3 citations70
US7241848B2Jul 10, 2007
Process for preparing low molecular weight olefin (CO)polymer and polymerization catalyst used therefor
MITSUI CHEMICALS INC8 citations70
US7741419B2Jun 22, 2010
Process for producing olefin polymers
MITSUI CHEMICALS INC4 citations63
US6313243B1Nov 6, 2001
Catalyst for olefin polymerization and method of polymerizing olefin
MITSUI CHEMICALS INC6 citations63
US7879960B2Feb 1, 2011
Process for producing propylene polymer
MITSUI CHEMICALS INC5 citations61
US7619030B2Nov 17, 2009
Automobile part of polypropylene resin composition
MITSUI CHEMICALS INC4 citations61
US8017705B2Sep 13, 2011
Process for production of syndiotactic propylene polymer
MITSUI CHEMICALS INC4 citations59
TOHI YASUSHI
3 patentsUS9382356B2Jul 5, 2016
Catalyst for olefin polymerization, method for producing olefin polymer, method for producing propylene-based copolymer, propylene polymer, propylene-based polymer composition, and use of those
TOHI YASUSHI5 citations67
USRE42957ENov 22, 2011
Process for producing olefin polymers
TOHI YASUSHI2 citations61
US8445609B2May 21, 2013
Method for producing olefin polymer
TOHI YASUSHI1 citations48