Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851668 | Ion source application device | Tasunori Ohno, Tomoe Kurosawa, Tadashi Sato, Yukio Kurosawa | 1989-07-25 |
| 4847476 | Ion source device | Tadashi Sato, Yasunori Ohno, Tomoe Kurosawa, Nobuya Sekimoto, Yukio Kurosawa +1 more | 1989-07-11 |