Issued Patents All Time
Showing 1–2 of 2 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 |
| 4682076 | Microwave tube with improved output signal extracting structure | Takao Kageyama | 1987-07-21 |