Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5886465 | Photomultiplier tube with multi-layer anode and final stage dynode | Shinichi Muramatsu, Fumihiro Takayama | 1999-03-23 |
| 5594301 | Electron tube including aluminum seal ring | Toshihiko Sawai, Masayuki Inuzuka | 1997-01-14 |
| 5216355 | Electronic volume controller | Yoshio Sasaki | 1993-06-01 |