Inventor
TANIGAWA TETSUROH
JP4 patents
Patents
4 patentsUS7493061B2Feb 17, 2009
Process cartridge including at least one replaceable member and image forming apparatus
RICOH KK22 citations92
US7158730B2Jan 2, 2007
Image forming apparatus, process cartridge, developing unit, and image forming method
RICOH KK6 citations73
US7031982B2Apr 18, 2006
Publication confirming method, publication information acquisition apparatus, publication information providing apparatus and database
RICOH KK8 citations66
US7522850B2Apr 21, 2009
Image forming apparatus, process cartridge, developing unit, and image forming method
RICOH KK4 citations62