Inventor
NAGAHARA AKIRA
JP14 patents
⚠️ This page may combine multiple inventors who share the name “NAGAHARA AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
13 patentsUS6128463AOct 3, 2000
Image forming device
FUJITSU LTD27 citations92
US5587774ADec 24, 1996
Cleanerless electrographic imaging device
FUJITSU LTD28 citations91
US5852757ADec 22, 1998
Electrophotographic image forming apparatus having a device for recovering residual toner
FUJITSU LTD32 citations90
US5467176ANov 14, 1995
Image forming method and apparatus with magnetic brush
FUJITSU LTD7 citations73
US5424489AJun 13, 1995
Magnetic brush developing apparatus
FUJITSU LTD7 citations73
US5678143AOct 14, 1997
Image forming apparatus for collecting residual toner from a drum using an AC voltage
FUJITSU LTD12 citations72
US5848343ADec 8, 1998
Electrophotographic image-forming apparatus with uniform toner usage control
FUJITSU LTD10 citations71
US5572298ANov 5, 1996
Image forming apparatus having a developing apparatus which includes a partition member for partitioning a developing room and a toner hopper
FUJITSU LTD4 citations62
US5495325AFeb 27, 1996
Image forming method and image forming apparatus
FUJITSU LTD5 citations62
US5448341ASep 5, 1995
Image forming apparatus
FUJITSU LTD3 citations62
US5778285AJul 7, 1998
Image forming apparatus for collecting residual toner from a drum using an AC voltage
FUJITSU LTD5 citations61
US5396026AMar 7, 1995
Magnetic brush developing apparatus
FUJITSU LTD6 citations61
US5845184ADec 1, 1998
Developing unit having improved toner density control
FUJITSU LTD0 citations40