Inventor
WATANABE SHUNTARO
JP44 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE SHUNTARO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
39 patentsUS9869943B2Jan 16, 2018
Method of producing toner and method of producing resin particle
CANON KK45 citations94
US9857713B2Jan 2, 2018
Resin particle and method of producing the resin particle, and toner and method of producing the toner
CANON KK45 citations94
US9823595B2Nov 21, 2017
Toner
CANON KK46 citations94
US9811016B2Nov 7, 2017
Toner
CANON KK45 citations94
US9798256B2Oct 24, 2017
Method of producing toner
CANON KK47 citations94
US9798262B2Oct 24, 2017
Method of producing toner
CANON KK45 citations94
US9658554B2May 23, 2017
Method of producing toner and method of producing resin particle
CANON KK45 citations94
US9625844B2Apr 18, 2017
Toner
CANON KK29 citations94
US9429860B2Aug 30, 2016
Toner production method
CANON KK49 citations94
US9309349B2Apr 12, 2016
Toner
CANON KK44 citations94
US8846284B2Sep 30, 2014
Toner
CANON KK50 citations94
US8741519B2Jun 3, 2014
Toner
CANON KK48 citations94
US8603712B2Dec 10, 2013
Toner
CANON KK50 citations94
US10409180B2Sep 10, 2019
Resin fine particles, method of producing resin fine particles, method of producing resin particles, and method of producing toner
CANON KK34 citations93
US8785101B2Jul 22, 2014
Toner
CANON KK29 citations92
US7014969B2Mar 21, 2006
Silica fine particle, toner, two-component developer and image forming method
CANON KK48 citations92
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
US11112709B2Sep 7, 2021
Toner and toner manufacturing method
CANON KK12 citations85
US10969704B2Apr 6, 2021
Magnetic toner and method for manufacturing magnetic toner
CANON KK14 citations85
US9176410B2Nov 3, 2015
Toner
CANON KK7 citations84
US7067225B2Jun 27, 2006
Method for forming an image
CANON KK8 citations74
US11809132B2Nov 7, 2023
Toner
CANON KK2 citations73
US11796930B2Oct 24, 2023
Magnetic toner
CANON KK2 citations73
US11415902B2Aug 16, 2022
Toner
CANON KK3 citations73
US10078280B2Sep 18, 2018
Methods for producing toner particle and producing resin particle
CANON KK2 citations73
US9057971B2Jun 16, 2015
Toner and method for producing toner
CANON KK6 citations73
US11619907B2Apr 4, 2023
Process cartridge
CANON KK0 citations62
US12153376B2Nov 26, 2024
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations60
US12153370B2Nov 26, 2024
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK0 citations60
US12461459B2Nov 4, 2025
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations52
US12457841B2Oct 28, 2025
Photoelectric conversion element and photoelectric conversion device including the photoelectric conversion element
CANON KK0 citations52
US12298709B2May 13, 2025
Toner and method for producing toner
CANON KK0 citations52
US12078960B2Sep 3, 2024
Toner and method for producing toner
CANON KK0 citations52
US7132207B2Nov 7, 2006
Toner kit and color-image-forming method
CANON KK1 citations52
US7029809B2Apr 18, 2006
Toner kit and color-image-forming method
CANON KK0 citations52
US12248273B2Mar 11, 2025
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK0 citations51
US12429785B2Sep 30, 2025
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations49
US9964876B2May 8, 2018
Toner and method for manufacturing the same
CANON KK0 citations41