Inventor
TANAKA MASATAKE
JP46 patents
⚠️ This page may combine multiple inventors who share the name “TANAKA MASATAKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
42 patentsUS9835964B2Dec 5, 2017
Toner
CANON KK52 citations98
US9599919B2Mar 21, 2017
Toner
CANON KK61 citations98
US9575424B2Feb 21, 2017
Method of producing a toner particle
CANON KK60 citations98
US9383668B2Jul 5, 2016
Toner
CANON KK65 citations98
US9377705B2Jun 28, 2016
Toner
CANON KK71 citations98
US9158216B2Oct 13, 2015
Method for producing toner particles
CANON KK72 citations98
US8377616B2Feb 19, 2013
AZO compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the azo compound
CANON KK57 citations98
US7833685B2Nov 16, 2010
Coloring compound and yellow toner containing the coloring compound
CANON KK60 citations98
US11003104B2May 11, 2021
Toner
CANON KK21 citations94
US11003105B2May 11, 2021
Toner and toner manufacturing method
CANON KK21 citations94
US10976679B2Apr 13, 2021
Toner
CANON KK21 citations94
US10942466B2Mar 9, 2021
Toner with an external additive of an organosilicon polymer particle having a hydroxyl group
CANON KK21 citations94
US9958801B2May 1, 2018
Toner and production method thereof
CANON KK33 citations94
US9904193B2Feb 27, 2018
Toner and method of producing toner
CANON KK29 citations94
US9829816B2Nov 28, 2017
Toner
CANON KK55 citations94
US9785071B2Oct 10, 2017
Toner and method for producing toner
CANON KK52 citations94
US9500972B2Nov 22, 2016
Toner
CANON KK48 citations94
US8815484B2Aug 26, 2014
Toner including compound having bisazo skeleton
CANON KK52 citations94
US9658549B2May 23, 2017
Toner
CANON KK36 citations93
US10054866B2Aug 21, 2018
Toner
CANON KK30 citations91
US11249408B2Feb 15, 2022
Toner
CANON KK12 citations86
US11169460B2Nov 9, 2021
Toner
CANON KK19 citations86
US10845721B2Nov 24, 2020
Toner
CANON KK16 citations85
US11947280B2Apr 2, 2024
Image forming apparatus
CANON KK1 citations73
US11829105B2Nov 28, 2023
Image forming method and image forming apparatus
CANON KK2 citations73
US9766566B2Sep 19, 2017
Toner and method for producing the same
CANON KK2 citations73
US8962726B2Feb 24, 2015
Compound having bisazo skeleton, pigment dispersant containing the compound, pigment composition, pigment dispersion, ink and resist composition for color filter
CANON KK3 citations63
US8916318B2Dec 23, 2014
Black toner containing compound having azo skeleton
CANON KK3 citations63
US12596315B2Apr 7, 2026
Toner
CANON KK0 citations62
US12585209B2Mar 24, 2026
Toner
CANON KK0 citations62
US12547089B2Feb 10, 2026
Toner and toner production method
CANON KK0 citations62
US12510844B2Dec 30, 2025
Toner accommodating container
CANON KK0 citations62
US12443129B2Oct 14, 2025
Image forming apparatus with simplified developer replenishment structure and that is user-friendly
CANON KK0 citations62
US12124212B2Oct 22, 2024
Toner
CANON KK1 citations62
US11493859B2Nov 8, 2022
Image forming apparatus
CANON KK1 citations62
US12306572B2May 20, 2025
Process cartridge
CANON KK0 citations52
US9249308B2Feb 2, 2016
Compound having bisazo dye skeleton, pigment composition containing the same, pigment dispersion, ink, and color filter resist composition
CANON KK0 citations52
US12235606B2Feb 25, 2025
Process cartridge
CANON KK0 citations51
US12282269B2Apr 22, 2025
Cartridge and image forming apparatus
CANON KK0 citations47
US12411428B2Sep 9, 2025
Toner pack
CANON KK0 citations46
US9176407B2Nov 3, 2015
Toner and method for manufacturing toner particles
CANON KK0 citations42
US8367288B2Feb 5, 2013
Yellow toner
CANON KK0 citations41