Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554918 | High-strength hot-rolled steel sheet superior in stretch flange formability and method for production thereof | Shunichi Hashimoto | 2003-04-29 |
| 6540846 | High-strength hot-rolled steel sheet superior in stretch-flanging performance and fatigue resistance and method for production thereof | Shunichi Hashimoto | 2003-04-01 |