Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11964360 | Polishing pad comprising window similar in hardness to polishing layer | Joonsung Ryou, Jang Won SEO, Jaein Ahn | 2024-04-23 |
| 11931856 | Polishing pad, process for preparing the same, and process for preparing a semiconductor device using the same | Hye Young HEO, Jang Won SEO | 2024-03-19 |
| 11780057 | Polishing pad and method for producing same | Joonsung Ryou, Tae-Kyoung Kwon, Jang Won SEO | 2023-10-10 |
| 11772236 | Porous polishing pad and process for producing the same all fees | Hye Young HEO, Jang Won SEO, Jong Wook YUN, Jaein Ahn | 2023-10-03 |
| 11766759 | Porous polyurethane polishing pad and process for producing the same | Hye Young HEO, Jang Won SEO, Jong Wook YUN, Jaein Ahn | 2023-09-26 |
| 11628535 | Polishing pad, method for manufacturing polishing pad, and polishing method applying polishing pad | Jaein Ahn, Jang Won SEO, Jong Wook YUN, Hye Young HEO, Su Young Moon | 2023-04-18 |
| 11571783 | Polishing pad having excellent airtightness | Jang Won SEO, Jaein Ahn, Jong Wook YUN, Hye Young HEO | 2023-02-07 |
| 11534888 | Polishing pad with improved fluidity of slurry and process for preparing same | Jang Won SEO, Hye Young HEO, Jong Wook YUN, Jaein Ahn, Su Young Moon | 2022-12-27 |
| 11400559 | Polishing pad, process for preparing the same, and process for preparing a semiconductor device using the same | Eun Sun Joeng, Jong Wook YUN, Jang Won SEO | 2022-08-02 |
| 11325159 | Classifying and purifying apparatus of solid blowing agents and methods of classifying and purifying solid blowing agents | Jung Nam LEE, Tae-Kyoung Kwon, Jang Won SEO | 2022-05-10 |
| 11298795 | Polishing pad, process for preparing the same, and process for preparing a semiconductor device using the same | Hye Young HEO, Jang Won SEO | 2022-04-12 |
| 11267098 | Leakage-proof polishing pad and process for preparing the same | Jang Won SEO, Tae-Kyoung Kwon, Jaein Ahn, Jong Wook YUN, Hye Young HEO | 2022-03-08 |
| 11000935 | Polishing pad that minimizes occurrence of defects and process for preparing the same | Hye Young HEO, Jong Wook YUN, Jang Won SEO, Jaein Ahn | 2021-05-11 |
| 10518383 | Porous polyurethane polishing pad and process for preparing a semiconductor device by using the same | Jaein Ahn, Jang Won SEO, Su Young Moon, Myung-Ok Kyun | 2019-12-31 |
| 10513007 | Porous polyurethane polishing pad and process for preparing a semiconductor device by using the same | Jaein Ahn, Jang Won SEO, Su Young Moon, Myung-Ok Kyun | 2019-12-24 |