Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835922 | Photomultiplier tube and production method therefor | Yuji Masuda, Hiroyuki Kyushima | 2004-12-28 |
| 6762555 | Photomultiplier tube and radiation detector | Hiroyuki Kyushima, Akira Atsumi, Tomoyuki Okada, Masuo Ito | 2004-07-13 |