Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4278124 | Method of producing hollow steel ingot and apparatus therefor | Kazuo Aso, Takemi Yamamoto, Naomichi Miyai, Jun Matsuno | 1981-07-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4278124 | Method of producing hollow steel ingot and apparatus therefor | Kazuo Aso, Takemi Yamamoto, Naomichi Miyai, Jun Matsuno | 1981-07-14 |