Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537391 | Steel with improved impact penetration resistance and method for producing the same | Kengo Ishige, Tadashi Shibue, Tsutomu Kakinouchi, Fumimaru Kawabata, Osamu Tanigawa +1 more | 2003-03-25 |