Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11421344 | Gallium nitride crystal substrate | Yusuke Yoshizumi, Hideki Osada, Yoshiaki Hagi | 2022-08-23 |
| 10113248 | Group III nitride crystal substrate, epilayer-containing group III nitride crystal substrate, semiconductor device and method of manufacturing the same | Keiji Ishibashi, Yusuke Yoshizumi | 2018-10-30 |
| 9708735 | Group III nitride crystal substrate, epilayer-containing group III nitride crystal substrate, semiconductor device and method of manufacturing the same | Keiji Ishibashi, Yusuke Yoshizumi | 2017-07-18 |