Inventor
ITO TOMIAKI
JP5 patents
Patents
5 patentsUS7250240B2Jul 31, 2007
Toner, developer, container containing toner, process, cartridge, image forming apparatus and process
RICOH KK13 citations82
US7090955B2Aug 15, 2006
Black toner, image forming method and image forming apparatus using the toner
RICOH KK5 citations72
US6969574B1Nov 29, 2005
Black toner, image forming method and image forming apparatus using the toner
RICOH KK9 citations72
US6821699B2Nov 23, 2004
Toner, image forming method and apparatus using the toner, and container containing the toner
RICOH KK9 citations72
US6838221B2Jan 4, 2005
Continuous crushing method and apparatus
RICOH KK0 citations50