Issued Patents All Time
Showing 26–50 of 168 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8513645 | Gallium nitride-based epitaxial wafer and method of producing gallium nitride-based semiconductor light-emitting device | Yusuke Yoshizumi, Masaki Ueno | 2013-08-20 |
| 8487327 | Group-III nitride semiconductor device, epitaxial substrate, and method of fabricating group-III nitride semiconductor device | Yohei Enya, Yusuke Yoshizumi, Takashi Kyono, Takamichi Sumitomo, Katsushi Akita +1 more | 2013-07-16 |
| 8483251 | Group III nitride semiconductor laser diode, and method for producing group III nitride semiconductor laser diode | Yohei Enya, Yusuke Yoshizumi, Takashi Kyono, Katsushi Akita, Masaki Ueno +1 more | 2013-07-09 |
| 8476615 | GaN-based semiconductor light emitting device and the method for making the same | Yohei Enya, Takashi Kyono, Takamichi Sumitomo, Katsushi Akita, Masaki Ueno | 2013-07-02 |
| 8420426 | Method of manufacturing a light-emitting device | Hideki Hirayama, Katsushi Akita | 2013-04-16 |
| 8362521 | III nitride semiconductor crystal, III nitride semiconductor device, and light emitting device | Seiji Nakahata, Hideaki Nakahata, Koji Uematsu, Makoto Kiyama, Youichi Nagai | 2013-01-29 |
| 8351440 | Relay device, communication system, communication method, and computer program | Seigo Sawada, Takumi Iwai, Yoshinari Oshio, Tsuneyuki Takai | 2013-01-08 |
| 8306082 | Group-III nitride semiconductor laser device, and method of fabricating group-III nitride semiconductor laser device | Yusuke Yoshizumi, Yohei Enya, Takashi Kyono, Masahiro Adachi, Katsushi Akita +5 more | 2012-11-06 |
| 8304793 | III-nitride semiconductor optical device and epitaxial substrate | Yusuke Yoshizumi, Yohei Enya, Katsushi Akita, Masaki Ueno, Takashi Kyono | 2012-11-06 |
| 8304269 | Method of fabricating group III nitride semiconductor device | Takashi Kyono, Yusuke Yoshizumi, Yohei Enya, Katsushi Akita, Masaki Ueno +1 more | 2012-11-06 |
| 8227277 | Group-III nitride semiconductor laser device, and method of fabricating group-III nitride semiconductor laser device | Yusuke Yoshizumi, Yohei Enya, Takashi Kyono, Masahiro Adachi, Katsushi Akita +5 more | 2012-07-24 |
| 8208683 | Digital watermark embedding method, apparatus and storage medium for reducing image quality deterioration and increasing detection reliability | Susumu Yamamoto | 2012-06-26 |
| 8207556 | Group III nitride semiconductor device and epitaxial substrate | Takashi Kyono, Yusuke Yoshizumi, Yohei Enya, Katsushi Akita, Masaki Ueno +1 more | 2012-06-26 |
| 8207544 | Group-III nitride semiconductor device, epitaxial substrate, and method of fabricating group-III nitride semiconductor device | Yohei Enya, Yusuke Yoshizumi, Takashi Kyono, Takamichi Sumitomo, Katsushi Akita +1 more | 2012-06-26 |
| 8183071 | Method for producing nitride semiconductor optical device and epitaxial wafer | Katsushi Akita, Yohei Enya, Takashi Kyono, Takamichi Sumitomo, Yusuke Yoshizumi +1 more | 2012-05-22 |
| 8126202 | 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 | 2012-02-28 |
| 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 |
| 7858963 | 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 | 2010-12-28 |