Inventor
TOMOTSU NORIO
JP38 patents
⚠️ This page may combine multiple inventors who share the name “TOMOTSU NORIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
31 patentsUS5391661AFeb 21, 1995
Process for producing a styrenic polymer and a catalyst for use therein
IDEMITSU KOSAN CO31 citations92
US4978730ADec 18, 1990
Process for producing styrene-based polymers and catalyst for use therein
IDEMITSU KOSAN CO29 citations92
US5276117AJan 4, 1994
Process for producing styrene-based polymers and catalysts for use therein
IDEMITSU KOSAN CO15 citations82
US5430001AJul 4, 1995
Process for producing a styrene polymer and a catalyst for use therein
IDEMITSU KOSAN CO8 citations74
US5272229ADec 21, 1993
Process for producing a styrene polymer having high degree of syndiotactic configuration
IDEMITSU KOSAN CO16 citations74
US5093295AMar 3, 1992
Process for producing homogeneous aluminoxane solution
IDEMITSU KOSAN CO14 citations74
US5070160ADec 3, 1991
Process for drying aluminoxane and process for producing polymers
IDEMITSU KOSAN CO13 citations74
US5023222AJun 11, 1991
Catalyst for producing syndiotactic configuration styrene-based polymers
IDEMITSU KOSAN CO9 citations74
US5824753AOct 20, 1998
Process for producing a styrenic polymer
IDEMITSU KOSAN CO10 citations73
US5786433AJul 28, 1998
Process for producing styrenic polymer
IDEMITSU KOSAN CO10 citations73
US5756612AMay 26, 1998
Process for producing styrenic polymer
IDEMITSU KOSAN CO10 citations73
US5670587ASep 23, 1997
Catalyst for producing aromatic vinyl compound-based polymer composition and process for producing aromatic vinyl compound-based polymer composition using same
IDEMITSU KOSAN CO14 citations73
US5623034AApr 22, 1997
Process for producing styrenic polymer
IDEMITSU KOSAN CO6 citations73
US5600005AFeb 4, 1997
Process for producing tetrakisflorophenylborate
IDEMITSU KOSAN CO10 citations73
US5596055AJan 21, 1997
Process for producing styrenic polymer
IDEMITSU KOSAN CO9 citations73
US5543481AAug 6, 1996
Process for producing a styrenic polymer
IDEMITSU KOSAN CO7 citations73
US5461128AOct 24, 1995
Process for producing a styrenic polymer
IDEMITSU KOSAN CO16 citations73
US5420089AMay 30, 1995
Catalyst for the production of styrene-based polymers
IDEMITSU KOSAN CO7 citations73
US5294685AMar 15, 1994
Process for producing a styrenic polymer having a high degree of syndiotacticity
IDEMITSU KOSAN CO17 citations73
US5084585AJan 28, 1992
Process for preparation of aluminoxane
IDEMITSU KOSAN CO8 citations73
US5858904AJan 12, 1999
Catalyst for production of vinyl-based polymer and process for production of vinyl-based aromatic polymer
IDEMITSU KOSAN CO9 citations72
US5747613AMay 5, 1998
Process for producing aromatic vinyl compound-based copolymer
IDEMITSU KOSAN CO9 citations72
US5747614AMay 5, 1998
Catalyst for producing sytrenic polymer and process for producing sytrenic polymer by using same
IDEMITSU KOSAN CO9 citations72
USRE37064EFeb 20, 2001
Process for producing styrenic polymer
IDEMITSU KOSAN CO2 citations62
US6075102AJun 13, 2000
Polymerization catalyst and process for producing polymers
IDEMITSU KOSAN CO2 citations62
US5905126AMay 18, 1999
Process and catalyst for producing styrenic polymer
IDEMITSU KOSAN CO5 citations62
US5807940ASep 15, 1998
Catalyst for polymerization and process for producing a styrenic polymer by using the catalyst
IDEMITSU KOSAN CO6 citations62
US5739227AApr 14, 1998
Process for controlling molecular weight of a styrenic polymer
IDEMITSU KOSAN CO5 citations62
US5422407AJun 6, 1995
Process for producing styrene-based polymers and catalyst for use therein
IDEMITSU KOSAN CO3 citations62
US6100352AAug 8, 2000
Process for producing polymer
IDEMITSU KOSAN CO2 citations61
US5451648ASep 19, 1995
Process for producing styrenic polymer
IDEMITSU KOSAN CO3 citations61
IDEMITSU PETROCHEMICAL CO
7 patentsUS6277934B1Aug 21, 2001
Organic aluminoxy compound and catalyst for producing polymer
IDEMITSU PETROCHEMICAL CO8 citations71
US5917073AJun 29, 1999
Organic aluminoxy compound and catalyst for producing polymer
IDEMITSU PETROCHEMICAL CO5 citations71
US6825294B1Nov 30, 2004
Catalysts for polymerizing styrene and other monomer and process for producing styrene polymer
IDEMITSU PETROCHEMICAL CO2 citations63
US5010151AApr 23, 1991
Method for preparing ethylene polymers
IDEMITSU PETROCHEMICAL CO4 citations63
US6034191AMar 7, 2000
Organic aluminoxy compound and catalyst for producing polymer
IDEMITSU PETROCHEMICAL CO4 citations60
US6696525B2Feb 24, 2004
Process for producing polymer composition
IDEMITSU PETROCHEMICAL CO0 citations52
US6815396B1Nov 9, 2004
Adsorbents made of styrene polymers
IDEMITSU PETROCHEMICAL CO1 citations47