Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12421346 | Polythiol composition, optical composition, and optical product | Jae Young PAI, Jeong Moo KIM, Hyuk Hee HAN, Jung Hwan MYUNG, Kyeong Hwan YOU +2 more | 2025-09-23 |
| 12359344 | Silicon carbide powder and method for manufacturing silicon carbide ingot using the same | Jong Hwi Park, Kap-Ryeol Ku, Jung-Gyu Kim, Jung Woo Choi, Jung Doo Seo | 2025-07-15 |
| 12325933 | Silicon carbide powder, method for manufacturing silicon carbide ingot using the same, and silicon carbide wafer | Jong Hwi Park, Kap-Ryeol Ku, Jung-Gyu Kim, Jung Woo Choi, Jung Doo Seo | 2025-06-10 |
| 12320033 | Silicon carbide wafer and method of preparing the same | Jong Hwi Park, Kap-Ryeol Ku, Jung Woo Choi, Byung Kyu Jang, Jung-Gyu Kim +1 more | 2025-06-03 |
| 12270122 | Silicon carbide wafer and semiconductor device | Jung Woo Choi, Jong Hwi Park, Jung Doo Seo, Jung-Gyu Kim, Kap-Ryeol Ku | 2025-04-08 |
| 12049437 | Diisocyanate composition, preparation method thereof and optical material using same | Jaeyoung Pai, Jeongmoo Kim, Hyuk Hee HAN, Jung Hwan MYUNG, Jooyoung JUNG | 2024-07-30 |
| 12037704 | Silicon carbide wafer and method of manufacturing same | Kap-Ryeol Ku, Jung-Gyu Kim, Jung Woo Choi, Jung Doo Seo, Jong Hwi Park | 2024-07-16 |
| 11932591 | Method of preparing diisocyanate composition and optical lens | Jaeyoung Pai, Jeongmoo Kim, Hyuk Hee HAN, Jung Hwan MYUNG, Jooyoung JUNG | 2024-03-19 |
| 11862685 | Wafer and method of manufacturing wafer | Jong Hwi Park, Kap-Ryeol Ku, Jung-Gyu Kim, Jung Woo Choi | 2024-01-02 |
| 11760719 | Diamine composition, and method of preparing diisocyanate composition | Jaeyoung Pai, Jeongmoo Kim, Hyuk Hee HAN, Jung Hwan MYUNG, Jooyoung JUNG | 2023-09-19 |
| 11731936 | Diisocyanate composition, preparation method thereof and optical material using same | Jaeyoung Pai, Jeongmoo Kim, Jung Hwan MYUNG, Hyuk Hee HAN, Jooyoung JUNG | 2023-08-22 |
| 11708644 | Method for preparing SiC ingot, method for preparing SiC wafer and the SiC wafer prepared therefrom | Jong Hwi Park, Jongmin Shim, Byung Kyu Jang, Jung Woo Choi, Sang Ki Ko +2 more | 2023-07-25 |
| 11541634 | Graphite sheet and method for manufacturing same | Ki Ryun Park, Jung-Gyu Kim, Jung Doo Seo, Jonggab Baek, Jong Hwi Park +1 more | 2023-01-03 |
| 11518737 | Method of preparing diisocyanate composition and optical lens | Jaeyoung Pai, Jeongmoo Kim, Hyuk Hee HAN, Jung Hwan MYUNG, Jooyoung JUNG | 2022-12-06 |
| 11466383 | Silicon carbide ingot, method of preparing the same, and method for preparing silicon carbide wafer | Jong Hwi Park, Jongmin Shim, Byung Kyu Jang, Jung Woo Choi, Sang Ki Ko +2 more | 2022-10-11 |
| 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, Jongmin Shim, Eun Su Yang, Byung Kyu Jang, Jung Woo Choi +3 more | 2022-06-14 |
| 11289576 | Wafer and method of manufactruring wafer | Jong Hwi Park, Kap-Ryeol Ku, Sang Ki Ko, Jung-Gyu Kim, Byung Kyu Jang +2 more | 2022-03-29 |
| 11040516 | Graphite sheet and method for manufacturing same | Ki Ryun Park, Jung-Gyu Kim, Jung Doo Seo, Jonggab Baek, Jong Hwi Park +1 more | 2021-06-22 |
| 10822720 | Composition for preparing silicon carbide ingot and method for preparing silicon carbide ingot using the same | Jong Hwi Park, Sang Ki Ko, Kap-Ryeol Ku, Jung-Gyu Kim, Jongmin Shim +2 more | 2020-11-03 |
| 10518383 | Porous polyurethane polishing pad and process for preparing a semiconductor device by using the same | Jaein Ahn, Jang Won SEO, Sunghoon YUN, Su Young Moon | 2019-12-31 |
| 10513007 | Porous polyurethane polishing pad and process for preparing a semiconductor device by using the same | Jaein Ahn, Jang Won SEO, Sunghoon YUN, Su Young Moon | 2019-12-24 |