Inventor
IMAI MASAFUMI
JP42 patents
⚠️ This page may combine multiple inventors who share the name “IMAI MASAFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOA NENRYO KOGYO KK
32 patentsUS4727049AFeb 23, 1988
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK27 citations93
US4390671AJun 28, 1983
Catalyst component for use in the polymerization of α-olefins and a method of using the same
TOA NENRYO KOGYO KK32 citations92
US4693990ASep 15, 1987
Production of catalyst component for olefin polymerization
TOA NENRYO KOGYO KK29 citations90
US4370257AJan 25, 1983
Catalyst component for polymerization of alpha-olefins and method for using the same
TOA NENRYO KOGYO KK22 citations82
US4960743AOct 2, 1990
Method for production of catalyst carrier for polymerization of olefin
TOA NENRYO KOGYO KK8 citations74
US4950630AAug 21, 1990
Method for production of catalyst component for olefin polymerization
TOA NENRYO KOGYO KK13 citations74
US4942148AJul 17, 1990
Catalyst component for olefin polymerization
TOA NENRYO KOGYO KK15 citations74
US4814312AMar 21, 1989
Method for production of catalyst component for olefin polymerization
TOA NENRYO KOGYO KK17 citations74
US4814313AMar 21, 1989
Method of production of catalyst carrier for polymerization of olefin
TOA NENRYO KOGYO KK14 citations74
US4754006AJun 28, 1988
Process for producing catalyst ingredient for use in olefin polymerization
TOA NENRYO KOGYO KK11 citations74
US4654318AMar 31, 1987
Process for preparing catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK17 citations74
US4652541AMar 24, 1987
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK6 citations74
US4613579ASep 23, 1986
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK9 citations74
US4565798AJan 21, 1986
Process for polymerization of olefins
TOA NENRYO KOGYO KK17 citations74
US4552858ANov 12, 1985
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK14 citations74
US4551440ANov 5, 1985
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK5 citations74
US4550095AOct 29, 1985
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK8 citations74
US4348507ASep 7, 1982
Catalyst component for use in the polymerization of α-olefins and a method of using the same
TOA NENRYO KOGYO KK6 citations74
US4335015AJun 15, 1982
Catalyst component for polymerization of alpha-olefins and method of using it
TOA NENRYO KOGYO KK12 citations74
US4253984AMar 3, 1981
Catalyst component for use in the polymerization of α-olefins and a method of using the same
TOA NENRYO KOGYO KK5 citations74
US4246136AJan 20, 1981
Catalyst component for use in the polymerization of α-olefins and a method of using the same
TOA NENRYO KOGYO KK7 citations74
US4242230ADec 30, 1980
Catalyst component for use in the polymerization of α-olefins and a method of using the same
TOA NENRYO KOGYO KK14 citations74
US4242231ADec 30, 1980
Catalyst component for use in the polymerization of α-olefins and a method of using the same
TOA NENRYO KOGYO KK14 citations71
US4959427ASep 25, 1990
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK4 citations63
US4814311AMar 21, 1989
Method for production of catalyst component for olefin polymerization (P-1292)
TOA NENRYO KOGYO KK5 citations63
US4737481AApr 12, 1988
Process for producing catalyst ingredient for use in olefin polymerization
TOA NENRYO KOGYO KK4 citations63
US4711940ADec 8, 1987
Process for preparing catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK5 citations63
US4625003ANov 25, 1986
Catalyst component for polymerization of olefins (P-1026)
TOA NENRYO KOGYO KK2 citations63
US4590325AMay 20, 1986
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK4 citations63
US4588793AMay 13, 1986
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK4 citations63
US4314046AFeb 2, 1982
Process for the stereoregular polymerization of α-olefins in the presence of a supported titanium catalyst
TOA NENRYO KOGYO KK2 citations63
US4711939ADec 8, 1987
Catalyst component for polymerization of olefins
TOA NENRYO KOGYO KK1 citations52
TONEN CORP
3 patentsUS5132261AJul 21, 1992
Olefin polymerization catalyst component
TONEN CORP7 citations72
US5130283AJul 14, 1992
Olefin polymerization catalyst component
TONEN CORP5 citations61
US5114896AMay 19, 1992
Process for the production of a catalytic component for the polymerization of olefins
TONEN CORP3 citations60