Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857800 | Electron beam indicator tube with accelerating electrode | Akio Ohkoshi, Hideaki Nakagawa, Koji Tsuruta, Yasuyoshi Sugii | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857800 | Electron beam indicator tube with accelerating electrode | Akio Ohkoshi, Hideaki Nakagawa, Koji Tsuruta, Yasuyoshi Sugii | 1989-08-15 |