Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9945020 | Zinc-plated steel sheet for hot pressing having outstanding surface characteristics, hot-pressed moulded parts obtained using the same, and a production method for the same | Il-Ryoung Sohn, Jong-Sang Kim, Joong-Chul Park, Jin-Keun Oh, Han-Gu Cho +2 more | 2018-04-17 |
| 9255313 | Steel sheet for hot press forming having low-temperature heat treatment property, method of manufacturing the same, method of manufacturing parts using the same, and parts manufactured by the same | Jin-Keun Oh, Sung Ho Park | 2016-02-09 |
| 9068255 | Zinc-plated steel sheet for hot pressing having outstanding surface characteristics, hot-pressed moulded parts obtained using the same, and a production method for the same | Il-Ryoung Sohn, Jong-Sang Kim, Joong-Chul Park, Jin-Keun Oh, Han-Gu Cho +2 more | 2015-06-30 |