Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D823372 | Screen frame | Bonil Koo, Hae Jeong Koh, Min Jung Kim, Young Mi Kim, Ok Sun Kim +3 more | 2018-07-17 |
| 9981344 | Method and apparatus for surface treatment of roll | Suk Kyun HWANG, Ji Woo IM | 2018-05-29 |
| 9677159 | Method of manufacturing martensitic stainless steel sheet using twin roll strip caster | Man-Jin Ha, Sung-Jin Park | 2017-06-13 |
| D785815 | Supporting frame for screen | Bonil Koo, Hae Jeong Koh, Min Jung Kim, Young Mi Kim, Ok Sun Kim +3 more | 2017-05-02 |
| D785814 | Ceiling frame for screen | Bonil Koo, Hae Jeong Koh, Min Jung Kim, Young Mi Kim, Ok Sun Kim +3 more | 2017-05-02 |
| D785204 | Frame for theater | Bonil Koo, Hae Jeong Koh, Min Jung Kim, Young Mi Kim, Ok Sun Kim +3 more | 2017-04-25 |
| 9533347 | Casting roll for twin-roll strip caster | Sung-Jin Park, Yoon-Ha Kim, Dae Sung Lee, Seong-In Jeong | 2017-01-03 |