Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663726 | High-hardness prehardened steel for cold working with excellent machinability, die made of the same for cold working, and method of working the same | Yukio Abe, Hideshi Nakatsu, Yasushi Tamura | 2003-12-16 |