Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883968 | Electron cyclotron resonance ion source | James E. Hipple, Gerald L. Dionne, Masaru Shimada, Iwao Watanabe | 1989-11-28 |
| 4857809 | Microwave ion source | Seitaro Matsuo, Iwao Watanabe, Masaru Shimada | 1989-08-15 |