Inventor
KOUNO MASAHIRO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “KOUNO MASAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
12 patentsUS5652315AJul 29, 1997
Method for preparing ethylene copolymer
MITSUI TOATSU CHEMICALS32 citations92
US5439994AAug 8, 1995
Method of polymerizing an olefin using a novel transition metal compound
MITSUI TOATSU CHEMICALS38 citations92
US5359102AOct 25, 1994
Transition metal compound having two transition metal atoms in one molecule and method for polymerizing olefin by using the compound
MITSUI TOATSU CHEMICALS21 citations92
US5677409AOct 14, 1997
Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner composition making use of the wax
MITSUI TOATSU CHEMICALS8 citations73
US5658999AAug 19, 1997
Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner composition making use of the wax
MITSUI TOATSU CHEMICALS13 citations73
US4785069ANov 15, 1988
Preparation process of heat-resistant polymers from polycarboxylic acids or anhydrides in the presence of an alkali metal fluoride and quaternary onium salt
MITSUI TOATSU CHEMICALS7 citations73
US4736008AApr 5, 1988
Preparation process of heat-resistant polymers from polycarboxcylic acids and anhydrides in the presence of an alkali metal fluoride
MITSUI TOATSU CHEMICALS14 citations73
US4282114AAug 4, 1981
Catalyst for polymerizing α-olefins
MITSUI TOATSU CHEMICALS13 citations72
US6936684B2Aug 30, 2005
Poly (alkylene oxide) prepared in the presence of a phosphazenium salt or compound
MITSUI TOATSU CHEMICALS2 citations63
US4795795AJan 3, 1989
Catalytic preparation of polyamide or polyamide-polymide with N,N'-dimethyl alkylene urea solvent
MITSUI TOATSU CHEMICALS5 citations61
US4921933AMay 1, 1990
Aromatic polyamide molded article having storage modulus
MITSUI TOATSU CHEMICALS2 citations60
US5428121AJun 27, 1995
Method for preparing syndiotactic polypropylene
MITSUI TOATSU CHEMICALS0 citations38
NISCA CORP
5 patentsUS7568880B2Aug 4, 2009
Micro-manipulator
NISCA CORP12 citations81
US5673906AOct 7, 1997
Sheet post-treating apparatus
NISCA CORP10 citations72
US5634632AJun 3, 1997
Sheet post-treating apparatus
NISCA CORP10 citations72
US7564209B2Jul 21, 2009
Micro-manipulator
NISCA CORP6 citations62
US5580038ADec 3, 1996
Sheet post-treating apparatus
NISCA CORP5 citations61
MITSUI CHEMICALS INC
3 patentsUS5990352ANov 23, 1999
Phosphazenium salt and preparation process thereof, and process for producing poly(alkylene oxide)
MITSUI CHEMICALS INC21 citations92
US5952457ASep 14, 1999
Polymerization catalyst for alkylene oxide compound and production process of poly(alkylene oxide)
MITSUI CHEMICALS INC24 citations92
US6022945AFeb 8, 2000
Process for production of propylene oxide/ethylene oxide block copolymers
MITSUI CHEMICALS INC4 citations62