Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12280366 | Method for coating exhaust gas purification catalyst filter with fixed amount of catalyst slurry | Byung-Suk Kim, Seung Chul Na | 2025-04-22 |
| 12190808 | Light emitting display apparatus and driving method thereof | — | 2025-01-07 |
| 12097483 | Exhaust gas-purification catalyst having multi-layer structure including precious metal thin layer as top layer, and method for producing same | Do-kyun Lee, Seung Chul Na | 2024-09-24 |
| 11838414 | Apparatus and method for recovering encryption key based on memory analysis | Tae Hwan Park, Sang Woon Jang, Il Hwan Park | 2023-12-05 |
| 11756482 | Light emitting display apparatus and driving method thereof | — | 2023-09-12 |
| 10220380 | Apparatus and method for quantitatively coating catalyst support | Hyun-sik Han, Seung Chul Na | 2019-03-05 |
| 9675949 | Quantitative catalyst supply device | Seung Chul Na, Hyun-sik Han | 2017-06-13 |
| 9321033 | Process for thermal fixation of catalytically active component onto alumina support | Hyun-sik Han, Seung Chul Na | 2016-04-26 |
| 8456434 | Touch sensor and operating method thereof | Byung-Joon Moon, Jae-Surk Hong, Duck-Young Jung | 2013-06-04 |
| 7663013 | Solid acid catalyst for producing light olefins and process using the same | Sun Choi, Deuk Soo Park, Suk Joon Kim, Ahn Choi, Hee Young Kim +4 more | 2010-02-16 |
| 7601663 | Solid acid catalyst for producing light olefins and process using the same | Sun Choi, Deuk Soo Park, Suk Joon Kim, Ahn Choi, Hee Young Kim +4 more | 2009-10-13 |