Inventor
FUKUYAMA HIROTAKA
JP17 patents
⚠️ This page may combine multiple inventors who share the name “FUKUYAMA HIROTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
13 patentsUS5488462AJan 30, 1996
Electrophotographic apparatus having developing device with seals for preventing toner leakage
TOSHIBA KK52 citations96
US5692232ANov 25, 1997
Electrophotographic apparatus that prevents toner from attaching to a contact member of a transfer device
TOSHIBA KK24 citations92
US5655178AAug 5, 1997
Electrophotographic apparatus having cleaning device and developing device configured to prevent toner leakage
TOSHIBA KK35 citations92
US5412364AMay 2, 1995
Toner pack and development device for use in electrophotographic apparatus
TOSHIBA KK38 citations92
US6744995B2Jun 1, 2004
Electrophotographic image forming apparatus
TOSHIBA KK9 citations73
US5600417AFeb 4, 1997
Developing device for electrophotographic apparatus
TOSHIBA KK13 citations73
US5188057AFeb 23, 1993
Developing apparatus
TOSHIBA KK15 citations70
US7885589B2Feb 8, 2011
Image forming device and image forming device control method
TOSHIBA KK3 citations62
US5557379ASep 17, 1996
Image forming apparatus having a toner conveyance regulator
TOSHIBA KK5 citations62
US5537192AJul 16, 1996
Transfer roller and toner for electrophotographic apparatus
TOSHIBA KK4 citations62
US5278581AJan 11, 1994
Printer for printing and image formed of 2-dimensionally arranged pixels, and method of printing the same
TOSHIBA KK4 citations60
US7962074B2Jun 14, 2011
Developing unit, image forming apparatus, and floating developer collecting method for developing unit
TOSHIBA KK0 citations51
US10126687B2Nov 13, 2018
Image forming apparatus
TOSHIBA KK0 citations41