Inventor
SUGIYAMA TSUNEMI
JP43 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA TSUNEMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
35 patentsUS6660443B2Dec 9, 2003
Dry toner and image forming method using same
RICOH KK138 citations99
US6468706B2Oct 22, 2002
Two-component developer, container filled with the two-component developer, and image formation apparatus
RICOH KK130 citations99
US6852462B2Feb 8, 2005
Toner, method of forming the toner, and image forming method and apparatus using the toner
RICOH KK103 citations98
US6849369B2Feb 1, 2005
Toner for developing electrostatic image, method for manufacturing the toner, developer including the toner, container containing the toner, and developing method using the toner
RICOH KK91 citations98
US6846604B2Jan 25, 2005
Toner and image forming apparatus using the toner
RICOH KK81 citations98
US6787280B2Sep 7, 2004
Electrophotographic toner and method of producing same
RICOH KK102 citations98
US6756175B2Jun 29, 2004
Method for fixing toner
RICOH KK90 citations98
US6682866B2Jan 27, 2004
Toner for dry developing
RICOH KK98 citations98
US6335137B1Jan 1, 2002
Electrophotographic toner and electrophotographic image forming method and apparatus using the toner
RICOH KK103 citations98
US6740460B2May 25, 2004
Dry toner
RICOH KK82 citations97
US7005223B2Feb 28, 2006
Toner composition and method for manufacturing the toner composition
RICOH KK45 citations96
US6946229B2Sep 20, 2005
Toner for forming color image, image forming apparatus, and toner container
RICOH KK54 citations96
US6824945B2Nov 30, 2004
Electrophotographic toner
RICOH KK70 citations96
US6800412B2Oct 5, 2004
Toner for dry developing
RICOH KK61 citations96
US6544704B1Apr 8, 2003
Two-component developer, container filled with the two-component developer, and image formation apparatus
RICOH KK59 citations96
US7198874B2Apr 3, 2007
Toner, method of making, method of using
RICOH KK28 citations93
US7074535B2Jul 11, 2006
Toner, method of making, method of using
RICOH KK34 citations93
US7074541B2Jul 11, 2006
Toner for electrophotography, method of manufacturing the toner, developer, development method, transfer method, and process cartridge using the toner
RICOH KK39 citations93
US6835519B2Dec 28, 2004
Dry toner and image forming method using same
RICOH KK33 citations93
US7504188B2Mar 17, 2009
Toner and developer, toner container, process cartridge, image forming apparatus, and image forming method using the same
RICOH KK33 citations92
US7396630B2Jul 8, 2008
Toner, developer including the toner, and method for fixing toner image
RICOH KK14 citations92
US7241548B2Jul 10, 2007
Toner, method for preparing the toner, and image forming method and apparatus using the toner
RICOH KK28 citations92
US7560216B2Jul 14, 2009
Image-fixing method and image-fixing device, and, image-forming method and image-forming apparatus
RICOH KK10 citations84
US7550245B2Jun 23, 2009
Toner and production method of the same, and image forming method
RICOH KK10 citations84
US7541128B2Jun 2, 2009
Toner, developer including the toner, and method for fixing toner image
RICOH KK9 citations84
US7435521B2Oct 14, 2008
Toner for developing electrostatic image
RICOH KK18 citations84
US7419756B2Sep 2, 2008
Dry toner, method for manufacturing the same, image forming apparatus, and image forming method
RICOH KK13 citations84
US7364828B2Apr 29, 2008
Toner for electrophotography, method of manufacturing the toner, developer, development method, transfer method, and process cartridge using the toner
RICOH KK11 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
US7563555B2Jul 21, 2009
Toner, developer including the toner, and method for fixing toner image
RICOH KK5 citations74
US7384722B2Jun 10, 2008
Method for preparing functional particulate organic material, toner using the functional particulate organic material, and image forming method and apparatus using the toner
RICOH KK8 citations74
US7294443B2Nov 13, 2007
Toner composition and method for manufacturing the toner composition
RICOH KK4 citations63
US7695883B2Apr 13, 2010
Toner and developer, toner container, process cartridge, image forming apparatus, and image forming method using the same
RICOH KK3 citations62
US7666566B2Feb 23, 2010
Electrophotographic toner and method of preparing the toner
RICOH KK1 citations52
US7666563B2Feb 23, 2010
Toner and developer using the toner
RICOH KK1 citations52
RICOH CO LTD
5 patentsUS8026031B2Sep 27, 2011
Toner, vessel with the toner, developer, image forming apparatus and process cartridge and image forming method
RICOH CO LTD6 citations74
US7939238B2May 10, 2011
Dry toner and method of preparing same
RICOH CO LTD3 citations63
US7932007B2Apr 26, 2011
Toner and method for producing the same, and image-forming method using the same
RICOH CO LTD2 citations63
US7879523B2Feb 1, 2011
Toner composition and method for manufacturing the toner composition
RICOH CO LTD5 citations63
US7989131B2Aug 2, 2011
Toner, developer, image forming method, image forming apparatus, process cartridge, and toner container
RICOH CO LTD1 citations52