Inventor
YAMAZAKI KATSUHISA
JP51 patents
⚠️ This page may combine multiple inventors who share the name “YAMAZAKI KATSUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
43 patentsUS9606462B2Mar 28, 2017
Toner and method for manufacturing toner
CANON KK58 citations98
US7537877B2May 26, 2009
Toner used in electrophotography having toner particles and silica powder
CANON KK70 citations97
US10295921B2May 21, 2019
Toner
CANON KK44 citations94
US10289016B2May 14, 2019
Toner
CANON KK44 citations94
US10241430B2Mar 26, 2019
Toner, and external additive for toner
CANON KK36 citations94
US10101683B2Oct 16, 2018
Toner and external additive for toner
CANON KK42 citations94
US9971263B2May 15, 2018
Toner
CANON KK46 citations94
US9829818B2Nov 28, 2017
Toner
CANON KK38 citations94
US9772570B2Sep 26, 2017
Magnetic toner
CANON KK29 citations94
US9715188B2Jul 25, 2017
Toner
CANON KK32 citations94
US9588450B2Mar 7, 2017
Magnetic toner
CANON KK37 citations94
US9575425B2Feb 21, 2017
Toner
CANON KK29 citations94
US9470993B2Oct 18, 2016
Magnetic toner
CANON KK53 citations94
US9341970B2May 17, 2016
Toner
CANON KK42 citations94
US9261804B2Feb 16, 2016
Toner
CANON KK41 citations94
US9250548B2Feb 2, 2016
Toner
CANON KK39 citations94
US9201323B2Dec 1, 2015
Toner
CANON KK47 citations94
US7855042B2Dec 21, 2010
Developer and image forming method
CANON KK51 citations94
US7740998B2Jun 22, 2010
Positively chargeable developer
CANON KK37 citations93
US7544455B2Jun 9, 2009
Magnetic toner
CANON KK32 citations93
US6875549B2Apr 5, 2005
Dry toner, toner production process, image forming method and process cartridge
CANON KK41 citations93
US7638251B2Dec 29, 2009
Toner
CANON KK22 citations92
US7150953B2Dec 19, 2006
Developer
CANON KK22 citations92
US6881527B2Apr 19, 2005
Toner, and process cartridge
CANON KK36 citations92
US6703176B2Mar 9, 2004
Toner, process for producing toner image forming method and apparatus unit
CANON KK34 citations92
US6586151B1Jul 1, 2003
Toner, process for producing toner image forming method and apparatus unit
CANON KK44 citations92
US6458499B1Oct 1, 2002
Toner having hydrocarbon wax with specific ester value and hydroxyl value
CANON KK23 citations92
US7700254B2Apr 20, 2010
Toner with specified amounts of the THF-soluble matter having certain intrinsic viscosity
CANON KK41 citations91
US10942463B2Mar 9, 2021
Toner
CANON KK10 citations86
US10768540B2Sep 8, 2020
External additive, method for manufacturing external additive, and toner
CANON KK13 citations86
US10747134B2Aug 18, 2020
External toner additive, method for producing external toner additive, and toner
CANON KK13 citations86
US11112713B2Sep 7, 2021
Toner
CANON KK9 citations85
US8026030B2Sep 27, 2011
Toner
CANON KK16 citations84
US7897316B2Mar 1, 2011
Toner having hybrid binder resin with polyester unit and vinyl copolymer unit
CANON KK19 citations84
US6589701B2Jul 8, 2003
Dry toner, image forming method and process cartridge
CANON KK20 citations84
US6426169B1Jul 30, 2002
Toner containing azo iron compound
CANON KK17 citations84
US6537715B2Mar 25, 2003
Toner, image-forming method and process cartridge
CANON KK16 citations83
US10162280B2Dec 25, 2018
Toner
CANON KK2 citations73
US9575461B2Feb 21, 2017
Process cartridge and image forming method using toner having properties for high image quality
CANON KK2 citations73
US10025212B2Jul 17, 2018
Toner and external additive for toner
CANON KK1 citations52
US9500970B2Nov 22, 2016
Toner
CANON KK1 citations52
US7241547B2Jul 10, 2007
Toner, method for forming image using the toner, and process cartridge
CANON KK0 citations52
US7141343B2Nov 28, 2006
Toner, method for forming image using the toner, and process cartridge
CANON KK0 citations52
TAKAHASHI TORU
2 patentsYAMAZAKI KATSUHISA
2 patentsMORIBE SHUHEI
1 patentMORIBE SYUHEI
1 patentTAKAHASHI TOORU
1 patentShowing the top 50 of 51 patents by PatentIndex Score.