Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4452634 | Method of stirring molten metal and refractory cylinder for the purpose | Yukio Oguchi, Tetsuya Fujii, Toshihiko Emi, Toshio Fujimura, Arata Ueda | 1984-06-05 |
| 4427444 | Method of refining molten metal with stirring by repeated operation of suction and discharge | Yukio Oguchi, Tetsuya Fujii, Toshihiko Emi, Toshio Fujimura, Arata Ueda +1 more | 1984-01-24 |