Inventor
JANG HOJIN
KR11 patents
⚠️ This page may combine multiple inventors who share the name “JANG HOJIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
8 patentsUS11199811B2Dec 14, 2021
Developing device with structure to release inner pressure
HEWLETT PACKARD DEVELOPMENT CO0 citations61
USD1090691SAug 26, 2025
Toner cartridge
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11927898B2Mar 12, 2024
Developing device with sealing structure to seal shutter for developer inlet of developer supply portion
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11835884B1Dec 5, 2023
Structure for opening and shutting of sensor for detecting toner remaining in toner cartridge
HEWLETT PACKARD DEVELOPMENT CO0 citations57
US11237500B2Feb 1, 2022
Developing device with structure to prevent scattering toner using magnetic repulsive force
HEWLETT PACKARD DEVELOPMENT CO0 citations50
US12487551B2Dec 2, 2025
Developing device with structure to regulate discharging amount of developer
HEWLETT PACKARD DEVELOPMENT CO0 citations49
US11698602B2Jul 11, 2023
Toner cartridge having front cover
HEWLETT PACKARD DEVELOPMENT CO0 citations49
US11016415B1May 25, 2021
Development cartridge with developer inlet for refilling developer and cap sealing developer inlet
HEWLETT PACKARD DEVELOPMENT CO0 citations49