Inventor
TOKUNAGA YUZO
JP20 patents
⚠️ This page may combine multiple inventors who share the name “TOKUNAGA YUZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
19 patentsUS5766814AJun 16, 1998
Magnetic coated carrier, two-component type developer and developing method
CANON KK65 citations96
US6566028B2May 20, 2003
Toner, and process for producing toner
CANON KK23 citations92
US6358658B1Mar 19, 2002
Toner, and process for producing toner
CANON KK25 citations92
US6165663ADec 26, 2000
Magnetic coated carrier two-component type developer and developing method
CANON KK53 citations92
US6159648ADec 12, 2000
Two-component type developer, developing method and image forming method
CANON KK19 citations92
US6106990AAug 22, 2000
Process for producing toner particles
CANON KK26 citations92
US6083655AJul 4, 2000
Magnetic brush developing method
CANON KK24 citations92
US6010811AJan 4, 2000
Two-component type developer, developing method and image forming method
CANON KK23 citations92
US5712069AJan 27, 1998
Two-component type developer, developing method and image forming method
CANON KK25 citations92
US5573880ANov 12, 1996
Carrier for electrophotography, process for its production, two-component type developer, and image forming method
CANON KK36 citations92
US11181848B2Nov 23, 2021
Liquid developer and method of producing liquid developer
CANON KK15 citations85
US9946175B2Apr 17, 2018
Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and condensed polycyclic aromatic compound
CANON KK4 citations73
US11624987B2Apr 11, 2023
Liquid developer
CANON KK0 citations62
US11281120B2Mar 22, 2022
Liquid developer and image-forming method
CANON KK0 citations62
US6038419AMar 14, 2000
Contact charging device having a magnetic brush comprised of magnetic particles for electrostatically charging a photosensitive drum
CANON KK2 citations62
US12429793B2Sep 30, 2025
Magnetic carrier and two-component developer
CANON KK0 citations52
US12386282B2Aug 12, 2025
Magnetic carrier, two-component developer, and developer for replenishment
CANON KK0 citations52
US11188005B2Nov 30, 2021
Liquid developer
CANON KK0 citations52
US10162281B2Dec 25, 2018
Liquid developer and manufacturing method of liquid developer
CANON KK1 citations51