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No.
Patent title
Country
Date of application
registration
Patent No.
Note
1
Method of Wafer Grinding
Korea
2004.05.19
2006.01.09
0543569
2
Method For Producing Virtual Gallium Nitride Epitaxial Wafer and Vertical Conduction Device
Korea
2006.09.14
2007.10.25
10-0772021
3
Substrate Structure for Semiconductor Made of Nitride-based compound and Production Method
Korea
2006.09.22
2008.01.03
10-0793443
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