Inventor

KIM HEONJOO

KR2 patents

Patents

2 patents

US12422775B2Sep 23, 2025

Unlocking toner cartridge by click operation

HEWLETT PACKARD DEVELOPMENT CO0 citations54

US11485593B2Nov 1, 2022

Pickup roller rotated by driving force for moving knock-up plate

HEWLETT PACKARD DEVELOPMENT CO0 citations44