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Bum Ho CHOI
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Goyang-si, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Epi-growth apparatus of separate chamber type
Patent number
12,000,061
Issue date
Jun 4, 2024
T.O.S Co., Ltd.
Bum Ho Choi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Device for detecting plasma of ultra fast with multi channel
Patent number
11,961,720
Issue date
Apr 16, 2024
T.O.S Co., Ltd.
Yong Kyu Kim
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Metal-oxide semiconductor evaporation source equipped with variable...
Patent number
11,692,260
Issue date
Jul 4, 2023
T.O.S Co., Ltd.
Bum Ho Choi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Apparatus for growing single crystal metal-oxide EPI wafer
Patent number
11,434,584
Issue date
Sep 6, 2022
T.O.S Co., Ltd.
Bum Ho Choi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Patents Applications
last 30 patents
Information
Patent Application
EPITAXIAL GROWTH APPARATUS AND MULTI-LAYER GAS SUPPLY MODULE USED T...
Publication number
20240183036
Publication date
Jun 6, 2024
PJP TECH INC
Bum Ho CHOI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
EPITAXIAL GROWTH APPARATUS AND GAS SUPPLY CONTROL MODULE USED THEREFOR
Publication number
20240167196
Publication date
May 23, 2024
PJP TECH INC
Bum Ho CHOI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
DEVICE FOR DETECTING PLASMA OF ULTRA FAST WITH MULTI CHANNEL
Publication number
20220223389
Publication date
Jul 14, 2022
T.O.S CO., Ltd.
Yong Kyu KIM
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
EPI-GROWTH APPARATUS OF SEPARATE CHAMBER TYPE
Publication number
20210310153
Publication date
Oct 7, 2021
T.O.S CO., Ltd.
Bum Ho CHOI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
METAL-OXIDE SEMICONDUCTOR EVAPORATION SOURCE EQUIPPED WITH VARIABLE...
Publication number
20210285088
Publication date
Sep 16, 2021
T.O.S CO., Ltd.
Bum Ho CHOI
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
APPARATUS FOR GROWING SINGLE CRYSTAL METAL-OXIDE EPI WAFER
Publication number
20210285128
Publication date
Sep 16, 2021
T.O.S CO., Ltd.
Bum Ho CHOI
C30 - CRYSTAL GROWTH