Inventor
SUGAMA KOUJI
JP38 patents
⚠️ This page may combine multiple inventors who share the name “SUGAMA KOUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KONICA MINOLTA INC
33 patentsUS9703220B1Jul 11, 2017
Image forming method and toner set
KONICA MINOLTA INC2 citations73
US9423712B2Aug 23, 2016
Toner for electrostatic image development
KONICA MINOLTA INC5 citations72
US10901333B2Jan 26, 2021
Electrostatic image developing toner
KONICA MINOLTA INC0 citations62
US8871415B2Oct 28, 2014
Toner for electrostatic image development
KONICA MINOLTA INC2 citations62
US12398095B2Aug 26, 2025
Photoresponsive compound, adhesive, switching material, and toner containing the photoresponsive compound, and image forming method using the toner
KONICA MINOLTA INC0 citations61
US12181833B2Dec 31, 2024
Photoresponsive polymer
KONICA MINOLTA INC0 citations61
US12006292B2Jun 11, 2024
Photoresponsive compound
KONICA MINOLTA INC0 citations61
US11976230B2May 7, 2024
Photoresponsive material, adhesive, optical switching material, toner, and image forming method
KONICA MINOLTA INC0 citations61
US11762276B2Sep 19, 2023
Photoresponsive compound
KONICA MINOLTA INC0 citations61
US11117409B2Sep 14, 2021
Stereoscopic image forming method and stereoscopic image forming apparatus
KONICA MINOLTA INC1 citations61
US10168631B2Jan 1, 2019
Electrostatic image developing toner and production method of electrostatic image developing toner
KONICA MINOLTA INC1 citations60
US8916323B2Dec 23, 2014
Toner for electrostatic image development
KONICA MINOLTA INC3 citations58
US9996017B2Jun 12, 2018
Electrostatic latent image developing toner
KONICA MINOLTA INC1 citations52
US9983491B2May 29, 2018
Process for producing a toner
KONICA MINOLTA INC1 citations52
US9933716B2Apr 3, 2018
Toner for electrostatic charge image development
KONICA MINOLTA INC0 citations52
US9846379B2Dec 19, 2017
Process for producing a toner
KONICA MINOLTA INC1 citations52
US10353309B2Jul 16, 2019
Electrostatic image developing toner
KONICA MINOLTA INC0 citations51
US10133200B2Nov 20, 2018
Electrostatic image developing toner
KONICA MINOLTA INC0 citations51
US10126668B2Nov 13, 2018
Toner for electrostatic charge image development
KONICA MINOLTA INC0 citations51
US9188892B2Nov 17, 2015
Electrostatic latent image developing toner and electrophotographic image forming method
KONICA MINOLTA INC0 citations51
US12321132B2Jun 3, 2025
Resin composition, toner for developing electrostatic charge image, image forming method, photosensitive adhesive, and optical switching material
KONICA MINOLTA INC0 citations50
US12265356B2Apr 1, 2025
Photoresponsive polymer, photoresponsive adhesive, toner, and image forming method
KONICA MINOLTA INC0 citations50
US12025909B2Jul 2, 2024
Photoresponsive compound
KONICA MINOLTA INC0 citations50
US11994827B2May 28, 2024
Photoresponsive polymer
KONICA MINOLTA INC0 citations50
US10481513B2Nov 19, 2019
Toner for electrostatic charge development
KONICA MINOLTA INC0 citations50
US9715186B2Jul 25, 2017
Electrostatic image developing toner
KONICA MINOLTA INC1 citations50
US11702398B2Jul 18, 2023
Photoresponsive low-molecular weight material, adhesive, toner, and image forming method
KONICA MINOLTA INC0 citations49
US10203621B2Feb 12, 2019
Image forming method and toner set for developing electrostatic latent image
KONICA MINOLTA INC0 citations49
US12037531B2Jul 16, 2024
Photoresponsive high-molecular weight material, adhesive, toner, and image forming method
KONICA MINOLTA INC0 citations48
US10564558B2Feb 18, 2020
Electrostatic charge image developing toner and two-component developer
KONICA MINOLTA INC0 citations48
US10120296B2Nov 6, 2018
Electrostatic latent image developing toner
KONICA MINOLTA INC0 citations41
US9568848B2Feb 14, 2017
Electrostatic image developing toner
KONICA MINOLTA INC0 citations41
US10379452B2Aug 13, 2019
Color image forming process and color toner set
KONICA MINOLTA INC0 citations39