Inventor
SAKITA HIROFUMI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “SAKITA HIROFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
13 patentsUS6226490B1May 1, 2001
Toner replenishing apparatus and image forming apparatus equipped with same
SHARP KK36 citations92
US6324351B1Nov 27, 2001
Image-forming apparatus unit and image-forming apparatus
SHARP KK31 citations91
US6035168AMar 7, 2000
Developing device having a reduced width in the horizontal direction
SHARP KK32 citations91
US7415214B2Aug 19, 2008
Image forming apparatus and method for detecting amount of remaining toner
SHARP KK13 citations83
US6512896B2Jan 28, 2003
Image forming apparatus with detachable mounting process cartridge
SHARP KK15 citations83
US6070035AMay 30, 2000
Image forming apparatus having developer supply device
SHARP KK18 citations83
US7619791B2Nov 17, 2009
Image forming method and image forming device
SHARP KK9 citations82
US6167227ADec 26, 2000
Developing unit and image forming apparatus
SHARP KK9 citations73
US7949265B2May 24, 2011
Toner supply device, developing device and image forming apparatus with residual quantity of toner based control
SHARP KK4 citations62
US7738816B2Jun 15, 2010
Image forming apparatus for supplying toner from one of a plurality of toner cartridges
SHARP KK5 citations61
US5794097AAug 11, 1998
Image forming device with residual charge removal control
SHARP KK4 citations61
US6311027B1Oct 30, 2001
Image-forming apparatus which forms images by using a developer
SHARP KK1 citations51
US5759735AJun 2, 1998
Method for preparing developer for use in electrophotographic printing
SHARP KK0 citations51