Inventor
HIGASHI RYUJI
JP42 patents
⚠️ This page may combine multiple inventors who share the name “HIGASHI RYUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
33 patentsUS7833687B2Nov 16, 2010
Aqueous dispersion of fine resin particles, method for producing aqueous dispersion of fine resin particles, and method for producing toner particles
CANON KK62 citations98
US7245851B2Jul 17, 2007
Electrophotographic apparatus
CANON KK23 citations93
US6773856B2Aug 10, 2004
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK28 citations92
US10761442B2Sep 1, 2020
Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and method of producing electrophotographic photosensitive member
CANON KK9 citations84
US10670979B2Jun 2, 2020
Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and method of manufacturing electrophotographic photosensitive member
CANON KK8 citations84
US7914616B2Mar 29, 2011
Method for producing liquid composition and pigment particles and ink composition for ink jet recording
CANON KK7 citations84
US7866806B2Jan 11, 2011
Liquid-composition set, and liquid-applying method and liquid-applying apparatus employing the set
CANON KK15 citations84
US7704414B2Apr 27, 2010
Image-forming method employing a composition
CANON KK13 citations84
US7601790B2Oct 13, 2009
Amphiphilic block copolymer, polymer-containing composition containing the same, and method and apparatus for applying liquid using the polymer-containing composition
CANON KK15 citations84
US7598332B2Oct 6, 2009
Polymerizable compound, polymer compound, composition using the same, image-forming method, and image-forming apparatus
CANON KK14 citations84
US7563853B2Jul 21, 2009
Polymer compound, process for producing the same, polymer-containing composition, ink-applying process, and ink-applying apparatus
CANON KK14 citations84
US7538147B2May 26, 2009
Image forming method, pattern forming method and liquid-applying apparatus which make use of liquid compositions
CANON KK14 citations84
US7528182B2May 5, 2009
Process for producing colorant dispersoid
CANON KK9 citations84
US7528179B2May 5, 2009
Block polymer, polymer-containing composition containing the same, ink composition and liquid applying method and liquid applying apparatus utilizing the polymer-containing composition
CANON KK14 citations84
US7498364B2Mar 3, 2009
Ink composition comprising a block or graft polymer and at least one colorant
CANON KK18 citations84
US7449513B2Nov 11, 2008
Alkenyl ether compound, polymer compound, composition using them, and image formation method and apparatus
CANON KK15 citations84
US7442753B2Oct 28, 2008
Polymer compound and block polymer compound
CANON KK14 citations84
US7423075B2Sep 9, 2008
Polymer, polymer-containing composition containing the same, ink composition, and ink applying method, image forming method and image forming apparatus which make use of ink composition
CANON KK15 citations84
US9534127B2Jan 3, 2017
Aqueous ink, ink cartridge and ink jet recording method
CANON KK2 citations73
US9458323B2Oct 4, 2016
Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method
CANON KK3 citations73
US9593250B2Mar 14, 2017
Aqueous ink, ink cartridge and ink jet recording method
CANON KK3 citations71
US9371462B2Jun 21, 2016
Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method
CANON KK2 citations63
US7754000B2Jul 13, 2010
Preparation process of pigment dispersion, image forming process and image forming apparatus
CANON KK6 citations63
US7071962B2Jul 4, 2006
Electrophotographic apparatus, process cartridge and electrophotographic photosensitive member unit
CANON KK4 citations63
US8927185B2Jan 6, 2015
Toner and toner production method
CANON KK3 citations62
US12140549B2Nov 12, 2024
Polymer dye for detecting hydrogen peroxide and structure for detecting hydrogen peroxide
CANON KK0 citations61
US9441128B2Sep 13, 2016
Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method
CANON KK1 citations52
US9403989B2Aug 2, 2016
Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method
CANON KK0 citations52
US7585918B2Sep 8, 2009
Block polymer compound, polymer-containing composition that contains the same
CANON KK0 citations52
US9244373B2Jan 26, 2016
Toner and method of producing toner
CANON KK1 citations51
US10577481B2Mar 3, 2020
Polymer
CANON KK0 citations50
US10808059B2Oct 20, 2020
Polymer
CANON KK0 citations40
US10678156B2Jun 9, 2020
Pigment dispersion, method for manufacturing toner, aqueous ink, and triazo compound
CANON KK0 citations40
RICOH CO LTD
4 patentsUS12057601B2Aug 6, 2024
Liquid composition
RICOH CO LTD0 citations62
US11807783B2Nov 7, 2023
Liquid composition, method of manufacturing electrodes and method of manufacturing electrochemical device
RICOH CO LTD0 citations51
US11955640B2Apr 9, 2024
Inorganic particle layer, electrode, electrode element, and non-aqueous electrolyte power storage element
RICOH CO LTD0 citations50
US11545308B2Jan 3, 2023
Liquid composition and method for producing electrochemical device
RICOH CO LTD0 citations50