Inventor
FUJIWARA AKIO
JP24 patents
⚠️ This page may combine multiple inventors who share the name “FUJIWARA AKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
5 patentsUS4833057AMay 23, 1989
Toner composition for the electrophotography
MITSUI TOATSU CHEMICALS34 citations92
US5084368AJan 28, 1992
Electrophotographic toner
MITSUI TOATSU CHEMICALS17 citations81
US5362595ANov 8, 1994
Electrophotographic toner production process
MITSUI TOATSU CHEMICALS2 citations62
US4857433AAug 15, 1989
Electrophotographic toner for high speed electrophotography
MITSUI TOATSU CHEMICALS5 citations59
US4727010AFeb 23, 1988
Electrophotographic process uses toner comprising vinyl copolymer
MITSUI TOATSU CHEMICALS6 citations59
ASAHI KASEI CHEMICALS CORP
5 patentsUS9362539B2Jun 7, 2016
Polyethylene powder, microporous membrane, and fiber
ASAHI KASEI CHEMICALS CORP4 citations72
US10597796B2Mar 24, 2020
Polyethylene powder for fiber, fiber, and article
ASAHI KASEI CHEMICALS CORP4 citations71
US9601738B2Mar 21, 2017
Polyethylene powder, microporous membrane, and fiber
ASAHI KASEI CHEMICALS CORP0 citations51
US9388303B2Jul 12, 2016
Polyethylene resin composition, microporous film and method for manufacturing the microporous film, and separator for battery
ASAHI KASEI CHEMICALS CORP0 citations48
US6956002B2Oct 18, 2005
Process for polymerization of olefins
ASAHI KASEI CHEMICALS CORP0 citations42
HITACHI LTD
4 patentsUS4952272AAug 28, 1990
Method of manufacturing probing head for testing equipment of semi-conductor large scale integrated circuits
HITACHI LTD105 citations94
US4748228AMay 31, 1988
Process for producing organic silicon-terminated polyimide precursor and polyimide
HITACHI LTD55 citations94
US5178738AJan 12, 1993
Ion-beam sputtering apparatus and method for operating the same
HITACHI LTD7 citations74
US4963512AOct 16, 1990
Method for forming conductor layers and method for fabricating multilayer substrates
HITACHI LTD19 citations71