Inventor
SUGIYAMA AKEMI
JP8 patents
Patents
8 patentsUS6468706B2Oct 22, 2002
Two-component developer, container filled with the two-component developer, and image formation apparatus
RICOH KK130 citations99
US6335137B1Jan 1, 2002
Electrophotographic toner and electrophotographic image forming method and apparatus using the toner
RICOH KK103 citations98
US6544704B1Apr 8, 2003
Two-component developer, container filled with the two-component developer, and image formation apparatus
RICOH KK59 citations96
US7029816B2Apr 18, 2006
Electrographic image formation method
RICOH KK20 citations92
US6228550B1May 8, 2001
Two-component developer
RICOH KK35 citations92
US6656654B2Dec 2, 2003
Toner and two-component developer, container therefor, and image forming apparatus
RICOH KK14 citations84
US6534232B1Mar 18, 2003
Electrophotographic image formation method, carrier for two-component developer, two-component developer, container holding therein the two-component developer, and electrophotographic image formation apparatus
RICOH KK17 citations84
US6670088B1Dec 30, 2003
Carrier for two-component developer for developing latent electrostatic images and developer using the carrier
RICOH KK2 citations63