Inventor

CHANG SEOK-RAK

KR23 patents

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

CHANG SEOK-RAK

SAMSUNG DISPLAY CO LTD

Thin film deposition apparatus

Source gas supply unit, and deposition apparatus and method using the same

Organic layer deposition apparatus and method of manufacturing organic light-emitting display device by using the same

Thin film transistor, organic light emitting diode display device having the same, and method of fabricating the same

Apparatus for thermally processing substrate

SAMSUNG SDI CO LTD

Fuel cell system and fuel cartridge having fuel buffer module

Flowing device for optics-based methanol sensor

Cathode end plate and breathable fuel cell stack using the same

End plate for fuel cell stack and air breathing fuel cell stack using the same

Fuel cell stack

NA HEUNG-YEOL

Substrate processing apparatus

Sputtering apparatus

Atomic layer deposition apparatus and method of fabricating atomic layer using the same

HONG JONG-WON

Thin film deposition apparatus

Heating unit and substrate processing apparatus having the same

SAMSUNG MOBILE DISPLAY CO LTD

Method of forming polycrystalline silicon layer and atomic layer deposition apparatus used for the same

LEE YUN-MI

Organic film deposition apparatus and method of manufacturing organic light-emitting display device by using the same

CHOI YONG SUP

Thin film deposition apparatus and method of manufacturing organic light-emitting display device by using the same

CHANG SEOK-RAK

Organic layer deposition apparatus and method of manufacturing organic light-emitting display device by using the same

CHUNG YUN-MO

Method of forming polycrystalline silicon layer and atomic layer deposition apparatus used for the same

PARK HYUN-SOOK

Organic layer deposition apparatus

EUN YEONG-CHAN

Fuel cell stack and manufacturing method of the same

YANG TAE-HOON

Sputtering apparatus