Issued Patents All Time
Showing 1–25 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12385115 | Steel for hot forming, hot-formed member, and manufacturing methods therefor | Jin-Keun Oh, Sang-Heon Kim, Hyo-Sik Chun, Seong-Beom Bae | 2025-08-12 |
| 12330391 | Steel sheet plated with Al—Fe for hot press forming having excellent corrosion resistance and spot weldability, and manufacturing method thereof | Jin-Keun Oh, Sang-Heon Kim, Yeol-Rae Cho | 2025-06-17 |
| 12269081 | Plated steel sheets for hot press forming having excellent hydrogen brittleness resistance and impact resistance, hot press formed parts, and manufacturing methods thereof | Sang-Heon Kim, Jin-Keun Oh, Sang-Bin Han | 2025-04-08 |
| 12241162 | Aluminum-iron-plated steel sheet, having excellent mold wear resistance, for hot press forming, and manufacturing method thereof | Jin-Keun Oh, Sang-Heon Kim, Hyo-Sik Chun | 2025-03-04 |
| 12226976 | Manufacturing method of aluminum-based alloy plated steel | Jin-Keun Oh, Il-Ryoung Sohn, Jeom-Soo Shin | 2025-02-18 |
| 12145194 | Casting products for cooling heating elements and method of manufacturing the same | Se Joon HWANG, Han Goo KIM, Kwang-Hoon Park | 2024-11-19 |
| 12123094 | Aluminum-based plated steel plate for hot press having excellent resistance against hydrogen delayed fracture and spot weldability, and method for manufacturing same | Jin-Keun Oh, Yeol-Rae Cho, Sang-Heon Kim | 2024-10-22 |
| 12111294 | 360 degree folding jig | Ki-Yong Lee, Ho Moon You | 2024-10-08 |
| 12084734 | Plated steel sheets for hot press forming having excellent hydrogen brittleness resistance and impact resistance, hot press formed parts, and manufacturing methods thereof | Jin-Keun Oh, Sang-Heon Kim, Hyo-Sik Chun | 2024-09-10 |
| 12049679 | Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same | Jin-Keun Oh, Yeol-Rae Cho, A-Ra CHO, Jin-Ho Cha, Si-Myoung Heo +1 more | 2024-07-30 |
| 12049678 | Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof | Jin-Keun Oh, Yeol-Rae Cho | 2024-07-30 |
| 11998971 | Hot press-formed part, and manufacturing method thereof | Jin-Keun Oh, Sang-Heon Kim, Hyo-Sik Chun | 2024-06-04 |
| 11993825 | Hot press forming member having excellent resistance to hydrogen embrittlement, and method for manufacturing same | Jin-Keun Oh, Sang-Heon Kim, Sang-Bin Han | 2024-05-28 |
| 11939651 | Al—Fe-alloy plated steel sheet for hot forming, having excellent TWB welding characteristics, hot forming member, and manufacturing methods therefor | Jin-Keun Oh, Yeol-Rae Cho, Hyeon-Jeong SHIN | 2024-03-26 |
| 11904572 | Manufacturing method of aluminum-based alloy plated steel | Jin-Keun Oh, Il-Ryoung Sohn, Jeom-Soo Shin | 2024-02-20 |
| 11897014 | Hot press-formed part, and manufacturing method thereof | Jin-Keun Oh, Sang-Heon Kim, Hyo-Sik Chun | 2024-02-13 |
| 11827947 | Hot press-formed member having excellent crack propagation resistance and ductility, and method for producing same | Jin-Keun Oh, Yeol-Rae Cho, Won-Mo BAK | 2023-11-28 |
| 11820103 | Steel sheet for hot press formed member having excellent coating adhesion and manufacturing method for the same | Jin-Keun Oh, A-Ra CHO, Hyeon-Jeong SHIN | 2023-11-21 |
| 11801664 | Steel sheet for hot press formed member having excellent resistance to hydrogen delayed fracture and method for manufacturing thereof | Jin-Keun Oh, Yeol-Rae Cho | 2023-10-31 |
| 11788166 | Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same | Jin-Keun Oh, Yeol-Rae Cho, A-Ra CHO, Jin-Ho Cha, Si-Myoung Heo +1 more | 2023-10-17 |
| 11732323 | Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof | Jin-Keun Oh, Yeol-Rae Cho | 2023-08-22 |
| 11654654 | Manufacturing method of aluminum-based alloy plated steel | Jin-Keun Oh, Il-Ryoung Sohn, Jeom-Soo Shin | 2023-05-23 |
| 11624100 | Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same | Jin-Keun Oh, Yeol-Rae Cho, A-Ra CHO, Jin-Ho Cha, Si-Myoung Heo +1 more | 2023-04-11 |
| 11578397 | Hot press-formed part, and manufacturing method thereof | Jin-Keun Oh, Sang-Heon Kim, Hyo-Sik Chun | 2023-02-14 |
| 11549167 | Steel sheet plated with Al—Fe alloy for hot press forming having excellent corrosion resistance and heat resistance, hot press formed part, and manufacturing method therefor | Jin-Keun Oh, Sang-Heon Kim, Yeol-Rae Cho | 2023-01-10 |