Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886246 | Metal-making apparatus involving the smelting reduction of metallic oxides | Takuya Maeda, Keikichi Murakami, Mitsuharu Kishimoto, Kenichi Yajima, Yoshihiko Takemura | 1989-12-12 |
| 4858393 | Method of dynamically balancing cylindrical rotors, and device for carrying out the method | — | 1989-08-22 |