Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4407056 | Method and apparatus for manufacturing metal sections | Kazuo Watanabe, Koe Nakajima | 1983-10-04 |
| 4334419 | Method for rolling steel sections having flanges or flange-like portions | Kanichi Kishikawa, Kazuo Watanabe, Taneharu Nishino, Seiichi Nagasoe | 1982-06-15 |