Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12429777 | Photoresist stripper composition for manufacturing display | Ho Sung Choi, Kyu-sang Kim, Sang Ku Ha, Byeong-Woo Jeon, Yun-mo Yang +3 more | 2025-09-30 |
| 11753211 | Safe guard zipper bag | — | 2023-09-12 |
| 10859917 | Photoresist stripper composition for manufacturing liquid crystal display | Ho Sung Choi, Kwang Hyun Ryu, Jong-Il Bae, Sang Ku Ha, Hye-Sung Yang +2 more | 2020-12-08 |
| 9353339 | Composition for removing and preventing formation of oxide on the surface of metal wire | Ho Sung Choi, Kwang Hyun Ryu, Jong-Il Bae, Hye-Sung Yang, Sang Ku Ha | 2016-05-31 |
| D738476 | Firewood stove | Woo Song Bang | 2015-09-08 |
| 9115334 | Method for producing omega fatty acid-containing extract from plant using supercritical carbon dioxide extraction | Cheol Goo Hur, Duck Sun Park, Hyo Nam Park, Hwang Yong Lee | 2015-08-25 |
| 8512877 | Naphthyl carbazole derivatives, KL host material, the organic light emitting device employing the same, the display device and the illumination device employing the same | Kyong-Min Kang, Deug Sang Lee, Chang Jun Lee, Kyoung Moon Go, Se Hoon Kim | 2013-08-20 |
| 7994541 | Semiconductor device and metal line fabrication method of the same | — | 2011-08-09 |
| 7575998 | Semiconductor device and metal line fabrication method of the same | — | 2009-08-18 |
| 4720034 | Apparatus and method of solder coating integrated circuit leads | — | 1988-01-19 |
| 4657172 | Apparatus and method of solder coating integrated circuit leads | — | 1987-04-14 |