Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855644 | Crossed double helix slow-wave circuit for use in linear-beam microwave tube | Yasuhiro Itagaki, Toshio Yamaguchi | 1989-08-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855644 | Crossed double helix slow-wave circuit for use in linear-beam microwave tube | Yasuhiro Itagaki, Toshio Yamaguchi | 1989-08-08 |