Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650049 | Photomultiplier tube | Hiroyuki Kyushima, Akira Atsumi, Tomoyuki Okada, Masuo Ito | 2003-11-18 |
| 6650050 | Photomultiplier tube | Hiroyuki Kyushima | 2003-11-18 |
| 6538399 | Electron tube | Hiroyuki Kyushima, Yutaka Hasegawa, Toshimitsu Nagai | 2003-03-25 |