Patents

US Patents

§ Granted

1. Chung Seok Choi, Moon, Jang-Won, Kim, Jong-Chae, Kim, Do-Hwan, RO, Kyoung-Oug, “Isolation structure having a second impurity region with greater impurity doping concentration surrounds a first impurity region and method for forming the same, and image sensor including the isolation structure and method for fabricating the image sensor” Patent number US9287309B2 

2. Chung Seok Choi, Kim, Jongchae, and Kim, Dowan, “Image Sensor Having 3D Photoelectronic Conversion Device” Patent number US9202950B2  

3. Kim Dowan, Dong-Hyun Woo, Jong-Chae Kim, Chung Seok Choi, “Image sensor and method for fabricating the same”, Patent number US9184203B2 

4. Chung Seok Choi, Kim, Jong-chae, and Kim, Do-Hwan, “Image sensor and method for fabricating the same ” Patent number US9159755B2  

§ Filed

1. Yu Huang, Chungsuk Choi, Xiangfeng Duan “Highly active and stable stepped cu based electrochemical catalyst” Patent number US20220205119A1 

South Korea Patents

§ Granted

1. Chung Seok Choi, Narae Kim, and Hyuck Mo Lee, “Method for preparing anode material for lithium secondary battery with porous network structure and anode material for lithium secondary battery prepared by the same” #1013937340000

2. Chung Seok Choi, Kim Dowan, Moon Jangwon, and Kim Jongchae, “Image Sensor Having Isolation Structure and Method for Fabrication of the Same” #1020263100000 

3. Chung Seok Choi, Kim Dowan, Ro Kyoungoug, and Kim Jongchae, “Image Sensor Having Isolation Structure and Optical Guidance, and Method for Fabrication of the Same” #1020888500000 

4. Chung Seok Choi, Kim Dowan, and Kim Jongchae, “Image Sensor Having 3D Photoelectronic Conversion Device” #1020666030000 

§ Filed

1.   Chung Seok Choi, Kim Dowan, and Kim Jongchae, “Image Sensor Having A Floating Graphene layer for Reduction of Dark Current” #10-2013-0105619

2.   Chung Seok Choi, Kim Dowan, Yoo Dong Hyun and Kim Jongchae, “Image Sensor Having Ferromagnetic layers for Reduction of Dark Current and Lag Fail” #10-2013-0137656