Inventor
AHN YONGNAM
KR9 patents
⚠️ This page may combine multiple inventors who share the name “AHN YONGNAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
8 patentsUSD907698SJan 12, 2021
Development cartridge for a printer
HEWLETT PACKARD DEVELOPMENT CO0 citations60
US11366407B2Jun 21, 2022
Structure to refill toner to development cartridge mounted in main body
HEWLETT PACKARD DEVELOPMENT CO1 citations59
US11204568B2Dec 21, 2021
Plunger locking structure in syringe type toner refill cartridge
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US12282273B2Apr 22, 2025
Development device having rotatable wiper wiping optical surface of lens
HEWLETT PACKARD DEVELOPMENT CO0 citations58
US12547097B2Feb 10, 2026
Toner cartridge with waste toner dispersing member connected to and driven by toner transport member
HEWLETT PACKARD DEVELOPMENT CO0 citations49
US12393138B2Aug 19, 2025
Toner refill cartridge having structure in which driving force is transmitted through toner outlet
HEWLETT PACKARD DEVELOPMENT CO0 citations49
US11392058B2Jul 19, 2022
Toner refilling portion of development cartridge to provide feedback indicating inlet shutter position
HEWLETT PACKARD DEVELOPMENT CO0 citations49
US12271120B2Apr 8, 2025
Toner refill cartridge having pump for automatic toner refilling
HEWLETT PACKARD DEVELOPMENT CO0 citations48