Inventor

HONG JIN HWA

KR9 patents

⚠️ This page may combine multiple inventors who share the name “HONG JIN HWA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

S PRINTING SOLUTION CO LTD

5 patents

USD833520SNov 13, 2018

Cartridge

S PRINTING SOLUTION CO LTD14 citations82

USD833519SNov 13, 2018

Cartridge

S PRINTING SOLUTION CO LTD13 citations82

USD832340SOct 30, 2018

Cartridge

S PRINTING SOLUTION CO LTD10 citations82

US10139750B2Nov 27, 2018

Developing cartridge, developing apparatus and image forming apparatus having the same

S PRINTING SOLUTION CO LTD3 citations72

US10558144B2Feb 11, 2020

Developing cartridge, developing apparatus and image forming apparatus having the same

S PRINTING SOLUTION CO LTD0 citations51

SAMSUNG ELECTRONICS CO LTD

2 patents

US9746801B2Aug 29, 2017

Cartridges and electrophotographic image forming apparatus using the same

SAMSUNG ELECTRONICS CO LTD4 citations72

US9429902B2Aug 30, 2016

Developing cartridge and image forming apparatus employing the same

SAMSUNG ELECTRONICS CO LTD3 citations71

HEWLETT PACKARD DEVELOPMENT CO

2 patents

US11126113B2Sep 21, 2021

Structure for releasing internal pressure in development cartridge when refilling toner

HEWLETT PACKARD DEVELOPMENT CO1 citations61

US11036164B2Jun 15, 2021

Toner cartridge for refilling toner by using elastic force

HEWLETT PACKARD DEVELOPMENT CO0 citations51