Issued Patents All Time
Showing 76–79 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4936968 | Ion-beam machining method and apparatus | Tsuyoshi Ohnishi, Tohru Ishitani | 1990-06-26 |
| 4755685 | Ion micro beam apparatus | Tohru Ishitani, Kaoru Umemura, Hifumi Tamura | 1988-07-05 |
| 4733134 | Liquid metal ion source with pulse generator control | Hifumi Tamura, Tohru Ishitani, Kaoru Umemura | 1988-03-22 |
| 4710632 | Ion microbeam apparatus | Tohru Ishitani, Hideo Todokoro, Hifumi Tamura | 1987-12-01 |