Inventor
ISHIGURO YASUYUKI
JP53 patents
⚠️ This page may combine multiple inventors who share the name “ISHIGURO YASUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
31 patentsUS6792217B2Sep 14, 2004
Use status detecting mechanism and image-producing unit
SHARP KK66 citations96
US6421517B1Jul 16, 2002
Toner supply device with rotatable agitating element
SHARP KK31 citations92
US6385422B1May 7, 2002
Developing unit equipped with a toner replenishing device configured with a conveying sheet and rotator
SHARP KK34 citations92
US6226490B1May 1, 2001
Toner replenishing apparatus and image forming apparatus equipped with same
SHARP KK36 citations92
US6035168AMar 7, 2000
Developing device having a reduced width in the horizontal direction
SHARP KK32 citations91
US7542704B2Jun 2, 2009
Toner carrier apparatus, toner feeding apparatus, and image forming apparatus
SHARP KK12 citations84
US7395015B2Jul 1, 2008
Toner transport device, toner supply device, and image forming apparatus
SHARP KK9 citations84
US7020416B2Mar 28, 2006
Image forming apparatus with arrangement for controlling assembly order
SHARP KK15 citations84
US6415126B2Jul 2, 2002
Developing unit with agitator and conveying sheet for toner
SHARP KK18 citations84
US6360066B1Mar 19, 2002
Developing apparatus having stirring shafts with elliptic stirring vanes
SHARP KK19 citations84
USD462712SSep 10, 2002
Toner cartridge
SHARP KK16 citations83
US6741822B2May 25, 2004
Image forming apparatus with members for holding a cartridge
SHARP KK8 citations74
US6272298B1Aug 7, 2001
Developer cartridge
SHARP KK10 citations74
US6347207B1Feb 12, 2002
Developing unit and toner replenishing device with conveying apparatus
SHARP KK9 citations73
US6853821B2Feb 8, 2005
Image forming device and toner device
SHARP KK8 citations71
US7805096B2Sep 28, 2010
Toner conveying device, toner supply device and image forming apparatus using these
SHARP KK5 citations63
US7627274B2Dec 1, 2009
Toner conveying device, toner supply device and image forming apparatus using these
SHARP KK3 citations63
US7526236B2Apr 28, 2009
Waste developer collecting device, image forming apparatus, and waste developer collecting method
SHARP KK2 citations63
US7263317B2Aug 28, 2007
Particle discharge apparatus and image forming apparatus
SHARP KK4 citations63
US7177577B2Feb 13, 2007
Particles supply apparatus and image forming apparatus
SHARP KK3 citations63
US5978632ANov 2, 1999
Toner cartridge
SHARP KK4 citations63
US7925182B2Apr 12, 2011
Image forming apparatus
SHARP KK6 citations62
US7756450B2Jul 13, 2010
Toner transport device and image forming apparatus
SHARP KK2 citations62
US7505711B2Mar 17, 2009
Waste developer collecting device and image forming apparatus provided therewith
SHARP KK3 citations62
US7502576B2Mar 10, 2009
Development apparatus for mixing recycled developer with toner in a toner supply path and image forming apparatus having same
SHARP KK4 citations62
US7440717B2Oct 21, 2008
Developing apparatus and image forming apparatus with toner supply portion opening/closing mechanism
SHARP KK3 citations62
US7283755B2Oct 16, 2007
Remaining toner detection apparatus and image forming apparatus provided with same
SHARP KK5 citations62
US6041207AMar 21, 2000
Apparatus for controlling the movement of magnetized developer material in a latent, electrostatic image developing deviced
SHARP KK7 citations62
US6009295ADec 28, 1999
Developing apparatus
SHARP KK5 citations61
US9992369B2Jun 5, 2018
Image forming apparatus having display section displaying environmental certification information during startup and being foldable into a generally flush accommodated state
SHARP KK0 citations52
US7860432B2Dec 28, 2010
Toner conveyance unit and image forming apparatus
SHARP KK1 citations52
MITA INDUSTRIAL CO LTD
8 patentsUS5142335AAug 25, 1992
Electrostatic latent image-developing device and toner cartridge used therefor
MITA INDUSTRIAL CO LTD43 citations93
US5621507AApr 15, 1997
Electrostatic latent image-developing device and toner cartridge used therefor
MITA INDUSTRIAL CO LTD21 citations92
US4730205AMar 8, 1988
Toner collecting apparatus
MITA INDUSTRIAL CO LTD29 citations92
US5671476ASep 23, 1997
Image forming machine with cleaning drum brush driven by rotating drum
MITA INDUSTRIAL CO LTD17 citations74
US4806981AFeb 21, 1989
Cleaning unit in electrophotographic copier
MITA INDUSTRIAL CO LTD15 citations74
US4860056AAug 22, 1989
Sealable toner recovery box for an image forming machine
MITA INDUSTRIAL CO LTD14 citations73
US5136341AAug 4, 1992
Image forming apparatus having means for coordinating the input and discharge of copy paper
MITA INDUSTRIAL CO LTD8 citations72
US4975740ADec 4, 1990
Page entering apparatus for electrophotographic copying machine
MITA INDUSTRIAL CO LTD4 citations62
ISHIGURO YASUYUKI
8 patentsUS8095049B2Jan 10, 2012
Toner cartridge and image forming apparatus using the same
ISHIGURO YASUYUKI38 citations92
US8730494B2May 20, 2014
Image forming apparatus including display device
ISHIGURO YASUYUKI3 citations62
US8417160B2Apr 9, 2013
Toner cartridge including a toner flowing-out preventing valve
ISHIGURO YASUYUKI3 citations62
US8412077B2Apr 2, 2013
Developing device and image forming apparatus using the same
ISHIGURO YASUYUKI3 citations62
US8532523B2Sep 10, 2013
Toner cartridge having a toner flowing-out preventing member and image forming apparatus using the same
ISHIGURO YASUYUKI1 citations51
US8238797B2Aug 7, 2012
Toner cartridge and image forming apparatus using the same
ISHIGURO YASUYUKI0 citations51
US9152967B2Oct 6, 2015
Image forming apparatus, consumables ordering system and consumables ordering method
ISHIGURO YASUYUKI0 citations41
US8731441B2May 20, 2014
Charging roller and image forming apparatus
ISHIGURO YASUYUKI0 citations41
MIHARA KOICHI
1 patentMIT IND CO LTD
1 patentKUNIHIRO HISASHI
1 patentShowing the top 50 of 53 patents by PatentIndex Score.