Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7880197 | Avalanche photodiode having doping region with monotonically increasing concentration distribution | Tadao Ishibashi, Seigo Ando, Yoshifumi Muramoto | 2011-02-01 |
| 7557387 | Avalanche photodiode | Tadao Ishibashi, Seigo Ando | 2009-07-07 |
| 6909161 | Photodiode | Tadao Ishibashi, Yoshifumi Muramoto | 2005-06-21 |