Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11094537 | Group III nitride composite substrate and method for manufacturing the same, and method for manufacturing group III nitride semiconductor device | Keiji Ishibashi, Akihiro Hachigo, Yuki Hiromura, Naoki Matsumoto, Seiji Nakahata +6 more | 2021-08-17 |
| 10600676 | Group III nitride composite substrate and method for manufacturing the same, and method for manufacturing group III nitride semiconductor device | Keiji Ishibashi, Akihiro Hachigo, Yuki Hiromura, Naoki Matsumoto, Seiji Nakahata +6 more | 2020-03-24 |
| 9917004 | Group III nitride composite substrate and method for manufacturing the same, and method for manufacturing group III nitride semiconductor device | Keiji Ishibashi, Akihiro Hachigo, Yuki Hiromura, Naoki Matsumoto, Seiji Nakahata +6 more | 2018-03-13 |
| 9136337 | Group III nitride composite substrate and method for manufacturing the same, laminated group III nitride composite substrate, and group III nitride semiconductor device and method for manufacturing the same | Keiji Ishibashi, Akihiro Hachigo, Yuki Hiromura, Naoki Matsumoto, Seiji Nakahata +2 more | 2015-09-15 |
| 8471365 | Nitride semiconductor substrate, semiconductor device, and methods for manufacturing nitride semiconductor substrate and semiconductor device | Sayuri Yamaguchi, Naoki Matsumoto | 2013-06-25 |
| 8471366 | Nitride semiconductor substrate | Naoki Matsumoto, Hideki Osada, Yusuke Yoshizumi, Sayuri Yamaguchi | 2013-06-25 |
| 8183669 | Nitride semiconductor wafer having a chamfered edge | Keiji Ishibashi, Naoki Matsumoto | 2012-05-22 |
| 8101523 | Method of processing of nitride semiconductor wafer, nitride semiconductor wafer, method of producing nitride semiconductor device and nitride semiconductor device | Keiji Ishibashi, Naoki Matsumoto | 2012-01-24 |
| 7872331 | Nitride semiconductor wafer | Keiji Ishibashi, Naoki Matsumoto | 2011-01-18 |