Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885816 | Rotating-brush washing apparatus | Masayuki Hashimoto, Manabu Sakamoto, Taizo Tsutsui, Satoshi Satoh, Yukihiko Kouza +4 more | 1989-12-12 |
| 4886246 | Metal-making apparatus involving the smelting reduction of metallic oxides | Takuya Maeda, Tsutomu Yamada, Mitsuharu Kishimoto, Kenichi Yajima, Yoshihiko Takemura | 1989-12-12 |