Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4746887 | Hollow cylindrical movable body for an electromagnet | Osamu Nogata, Takashi Kajima | 1988-05-24 |
| 4688138 | Electromagnet drive device | Osamu Nagata, Takashi Kajima | 1987-08-18 |