Inventor
MABUCHI HIROYUKI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “MABUCHI HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI KOKI KK
8 patentsUS6330405B1Dec 11, 2001
Image forming apparatus
HITACHI KOKI KK20 citations92
US5832333ANov 3, 1998
Electrostatic recording apparatus and electrostatic recording method
HITACHI KOKI KK19 citations84
US6684036B2Jan 27, 2004
Image forming apparatus
HITACHI KOKI KK10 citations74
US5659841AAug 19, 1997
Electrostatic recording control method and electrostatic recording apparatus
HITACHI KOKI KK17 citations71
US5579096ANov 26, 1996
Imaging apparatus and method for cleaning transfer/conveyer means
HITACHI KOKI KK12 citations71
US6487384B2Nov 26, 2002
Image forming electrophotography apparatus and magnetic developing unit
HITACHI KOKI KK4 citations63
US6271874B1Aug 7, 2001
Electrophotographic printer having an image memory, a horizontal scanning fringe correction exposure determining section, a vertical scanning fringe correction exposure determining section, and a switch
HITACHI KOKI KK3 citations63
US6240270B1May 29, 2001
Color image forming method and device using potential division development
HITACHI KOKI KK1 citations52
HITACHI LTD
4 patentsUS6871036B2Mar 22, 2005
Belt driving apparatus and image forming apparatus using the same
HITACHI LTD23 citations92
US5600405AFeb 4, 1997
Bias cleaning system and electrostatic printing apparatus therewith and operating method thereof
HITACHI LTD46 citations92
US5884119AMar 16, 1999
Light exposure controlling method of electrophotographic apparatus for suppressing fringe in picture
HITACHI LTD12 citations73
US6131000AOct 10, 2000
Electrophotographic printing apparatus using electric potential dividing development
HITACHI LTD2 citations63
RICOH PRINTING SYS LTD
3 patentsUS6993275B2Jan 31, 2006
Image position detecting method
RICOH PRINTING SYS LTD26 citations92
US7167667B2Jan 23, 2007
Developing apparatus and electrostatic recording apparatus using the same
RICOH PRINTING SYS LTD8 citations74
US6879800B2Apr 12, 2005
Developing apparatus and electrostatic record apparatus
RICOH PRINTING SYS LTD11 citations74
HITACHI PRINTING SOLUTIONS LTD
3 patentsUS6738586B2May 18, 2004
Print control method of electrophotograph and image formation apparatus with potential sensor using the method
HITACHI PRINTING SOLUTIONS LTD20 citations92
US6853829B2Feb 8, 2005
Multi-color printer and method therefor
HITACHI PRINTING SOLUTIONS LTD17 citations84
US6694119B2Feb 17, 2004
Perfecting press apparatus
HITACHI PRINTING SOLUTIONS LTD4 citations62
RICOH KK
3 patentsUS7502579B2Mar 10, 2009
Developing device using developer of particular properties suitable therefore
RICOH KK7 citations74
US7643779B2Jan 5, 2010
Developer transporting amount controlling member, developing apparatus, imaging apparatus, and method for exchanging developing unit
RICOH KK4 citations63
US7574164B2Aug 11, 2009
Developing device and electrophotographic apparatus using the same
RICOH KK4 citations62
RICOH CO LTD
3 patentsUS7873312B2Jan 18, 2011
Transfer apparatus, method of manufacturing the transfer apparatus and image forming apparatus using the transfer apparatus
RICOH CO LTD2 citations63
US7970307B2Jun 28, 2011
Methods and apparatus for transferring a toner image via electrophotographics
RICOH CO LTD4 citations62
US7953335B2May 31, 2011
Image forming apparatus and tandem image forming apparatus
RICOH CO LTD3 citations62
TERAI JUNICHI
2 patentsOTOME YUKIO
2 patentsUS9031474B2May 12, 2015
Powder feeding device having negative pressure generation control and power discharge control and image forming apparatus
OTOME YUKIO0 citations50
US8837992B2Sep 16, 2014
Powder feeding device having negative pressure generation control and powder discharge control and image forming apparatus
OTOME YUKIO0 citations50