Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6198221 | Electron tube | Motohiro Suyama, Suenori Kimura, Norio Asakura, Yoshihiko Kawai, Yutaka Hasegawa +1 more | 2001-03-06 |
| 5917282 | Electron tube with electron lens | Motohiro Suyama, Yoshihiko Kawai, Suenori Kimura, Norio Asakura, Tetsuya Morita | 1999-06-29 |
| 5883466 | Electron tube | Motohiro Suyama, Suenori Kimura, Norio Asakura, Yoshihiko Kawai, Yutaka Hasegawa +1 more | 1999-03-16 |