Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12320033 | Silicon carbide wafer and method of preparing the same | Jong Hwi Park, Kap-Ryeol Ku, Jung Woo Choi, Myung-Ok Kyun, Jung-Gyu Kim +1 more | 2025-06-03 |
| 11939698 | Wafer manufacturing method, epitaxial wafer manufacturing method, and wafer and epitaxial wafer manufactured thereby | Jong Hwi Park, Jung-Gyu Kim, Eun Su Yang, Jung Woo Choi, Yeon Sik LEE +2 more | 2024-03-26 |
| 11859305 | Apparatus for growing a SiC single crystal ingot comprising a filter unit having a porous body surrounding an opening unit that is located under a seed crystal | Jung Woo Choi, Jung-Gyu Kim, Kap-Ryeol Ku, Sang Ki Ko | 2024-01-02 |
| 11856678 | Method of measuring a graphite article, apparatus for a measurement, and ingot growing system | Eun Su Yang, Jong Hwi Park, Jung Woo Choi, Sang Ki Ko, Jongmin Shim +2 more | 2023-12-26 |
| 11846038 | Method of growing semi-insulating silicon carbide single crystal using dopant coated with a carbon-based material | Jung Woo Choi, Jung-Gyu Kim, Kap-Ryeol Ku, Sang Ki Ko | 2023-12-19 |
| 11795572 | Method of manufacturing a silicon carbide ingot comprising moving a heater surrounding a reactor to induce silicon carbide raw materials to sublimate and growing the silicon carbide ingot on a seed crystal | Jong Hwi Park, Eun Su Yang, Jung Woo Choi, Sang Ki Ko, Kap-Ryeol Ku +1 more | 2023-10-24 |
| 11708644 | Method for preparing SiC ingot, method for preparing SiC wafer and the SiC wafer prepared therefrom | Jong Hwi Park, Myung-Ok Kyun, Jongmin Shim, Jung Woo Choi, Sang Ki Ko +2 more | 2023-07-25 |
| 11646209 | Method of cleaning wafer and wafer with reduced impurities | Jong Hwi Park, Il Hwan Yoo, Kap-Ryeol Ku, Jung-Gyu Kim, Jung Woo Choi +2 more | 2023-05-09 |
| 11591711 | Method and system for producing silicon carbide ingot | Jong Hwi Park, Eun Su Yang, Jung Woo Choi, Sang Ki Ko, Kap-Ryeol Ku +1 more | 2023-02-28 |
| 11566344 | Silicon carbide ingot, wafer, method for producing a silicon carbide ingot, and method for manufacturing a wafer | Jong Hwi Park, Jongmin Shim, Eun Su Yang, Yeon Sik LEE, Jung Woo Choi +3 more | 2023-01-31 |
| 11474012 | Method for preparing silicon carbide wafer and silicon carbide wafer | Jong Hwi Park, Jongmin Shim, Eun Su Yang, Yeon Sik LEE, Jung Woo Choi +3 more | 2022-10-18 |
| 11466383 | Silicon carbide ingot, method of preparing the same, and method for preparing silicon carbide wafer | Jong Hwi Park, Myung-Ok Kyun, Jongmin Shim, Jung Woo Choi, Sang Ki Ko +2 more | 2022-10-11 |
| 11447889 | Adhesive layer of seed crystal, method for preparing a laminate using the same, and method for preparing a wafer | Jong Hwi Park, Jongmin Shim, Eun Su Yang, Jung Woo Choi, Sang Ki Ko +2 more | 2022-09-20 |
| 11359306 | Method for preparing a SiC ingot and device for preparing a SiC ingot wherein electrical resistance of crucible body is 2.9 ohms or more | Jong Hwi Park, Myung-Ok Kyun, Jongmin Shim, Eun Su Yang, Jung Woo Choi +3 more | 2022-06-14 |
| 11339497 | Silicon carbide ingot manufacturing method and silicon carbide ingot manufactured thereby | Jong Hwi Park, Kap-Ryeol Ku, Jung-Gyu Kim, Jung Woo Choi, Sang Ki Ko +2 more | 2022-05-24 |
| 11289576 | Wafer and method of manufactruring wafer | Jong Hwi Park, Kap-Ryeol Ku, Sang Ki Ko, Jung-Gyu Kim, Jung Woo Choi +2 more | 2022-03-29 |
| 11268209 | Seed crystal including protective film including a first layer with first filler and second layer with second filler | Sang Ki Ko, Jung-Gyu Kim, Jung Woo Choi, Kap-Ryeol Ku | 2022-03-08 |
| 11225730 | Method for producing ingot, raw material for ingot growth, and method for preparing the raw material | Jung-Gyu Kim, Jung Woo Choi, Sang Ki Ko, Kap-Ryeol Ku | 2022-01-18 |
| 11078599 | Apparatus for producing an ingot comprising a crucible body with a lid assembly having a movable core member and method for producing silicon carbide ingot using the apparatus | Jung-Gyu Kim, Jung Woo Choi, Kap-Ryeol Ku, Sang Ki Ko | 2021-08-03 |
| 10903157 | Semiconductor device having a glass substrate core layer | Sung Jin Kim, Young-Ho RHO, Jin Cheol Kim | 2021-01-26 |
| 10822720 | Composition for preparing silicon carbide ingot and method for preparing silicon carbide ingot using the same | Jong Hwi Park, Myung-Ok Kyun, Sang Ki Ko, Kap-Ryeol Ku, Jung-Gyu Kim +2 more | 2020-11-03 |