Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883968 | Electron cyclotron resonance ion source | James E. Hipple, Gerald L. Dionne, Yasuhiro Torii, Masaru Shimada | 1989-11-28 |
| 4857809 | Microwave ion source | Yasuhiro Torii, Seitaro Matsuo, Masaru Shimada | 1989-08-15 |
| 4850163 | Free-access floor | Tokuzo Kobayashi | 1989-07-25 |