Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871146 | Apparatus for heat treatment of steel rods | Kunio Ojima, Takashi Asakura, Yusuke Yamamori, Yukihiro Nakamura | 1989-10-03 |
| 4857751 | Photoelectric conversion apparatus with separating electrodes | Katsunori Hatanaka, Toshihiro Saika, Takayuki Ishii | 1989-08-15 |
| 4818445 | Apparatus for treating a solution or a slurry solution | Masakazu Onizuka, Atsushi Tatani, Masao Hino, Nobutaka Maeda, Tokuma Arai | 1989-04-04 |