Issued Patents 2011
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8067257 | Nitride based semiconductor optical device, epitaxial wafer for nitride based semiconductor optical device, and method of fabricating semiconductor light-emitting device | Masaki Ueno, Yohei Enya, Takashi Kyono, Katsushi Akita, Yusuke Yoshizumi +1 more | 2011-11-29 |
| 8053806 | Group III nitride semiconductor device and epitaxial substrate | Takashi Kyono, Yusuke Yoshizumi, Yohei Enya, Katsushi Akita, Masaki Ueno +1 more | 2011-11-08 |
| 8018029 | Gallium nitride-based epitaxial wafer and method of fabricating epitaxial wafer | Yusuke Yoshizumi, Masaki Ueno | 2011-09-13 |
| 7978877 | Digital watermark embedding method, digital watermark embedding apparatus, and storage medium storing a digital watermark embedding program | Hiroshi Ogawa, Atsuki Tomioka, Youichi Takashima | 2011-07-12 |
| 7970164 | Digital watermark padding method, digital watermark padding device, digital watermark detecting method, digital watermark detecting device, and program | Susumu Yamamoto, Ryo Kitahara, Takashi Miyatake, Atushi Katayama, Hisato Miyachi | 2011-06-28 |
| 7943943 | Light-emitting device and manufacturing method thereof | Hideki Hirayama, Katsushi Akita | 2011-05-17 |
| 7933303 | Group-III nitride semiconductor laser device, and method for fabricating group-III nitride semiconductor laser device | Yusuke Yoshizumi, Yohei Enya, Takashi Kyono, Masahiro Adachi, Katsushi Akita +5 more | 2011-04-26 |
| 7879636 | Method of forming p-type gallium nitride based semiconductor, method of forming nitride semiconductor device, and method of forming epitaxial wafer | Masaki Ueno, Yusuke Yoshizumi | 2011-02-01 |