Inventor
HIRAYAMA NOBUHIRO
JP13 patents
⚠️ This page may combine multiple inventors who share the name “HIRAYAMA NOBUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
12 patentsUS5084368AJan 28, 1992
Electrophotographic toner
MITSUI TOATSU CHEMICALS17 citations81
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
US4963456AOct 16, 1990
Electrophotographic toner
MITSUI TOATSU CHEMICALS7 citations73
US5266434ANov 30, 1993
Electrophotographic toner composition
MITSUI TOATSU CHEMICALS8 citations71
US5230978AJul 27, 1993
Electrophotographic toner composition
MITSUI TOATSU CHEMICALS9 citations71
US5468585ANov 21, 1995
Resin composition for use in an electrophotographic toner
MITSUI TOATSU CHEMICALS9 citations70
US5241019AAug 31, 1993
Binder for dry toner
MITSUI TOATSU CHEMICALS13 citations68
US5362595ANov 8, 1994
Electrophotographic toner production process
MITSUI TOATSU CHEMICALS2 citations62
US5389483AFeb 14, 1995
Electrophotographic toner having two ethylene polymers
MITSUI TOATSU CHEMICALS6 citations60
US5502110AMar 26, 1996
Resin composition for electrophotographic toner
MITSUI TOATSU CHEMICALS2 citations59
US5573881ANov 12, 1996
Toner composition for electrophotography
MITSUI TOATSU CHEMICALS4 citations58