Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12040429 | Light-emitting element and light-emitting device | — | 2024-07-16 |
| 11741894 | Light-emitting device and method for controlling light-emitting device | Hisayuki Utsumi | 2023-08-29 |
| 11417851 | Light-emitting element, light-emitting device, and device for producing light-emitting element | Shinichi Handa, Noboru Iwata | 2022-08-16 |
| 11342524 | Light emitting element, light emitting device, and apparatus for producing light emitting element | Shinichi Handa, Noboru Iwata | 2022-05-24 |
| 11289667 | Light-emitting device with high electron injection efficiency | TADASHI KOBASHI, Makoto Izumi, Noboru Iwata | 2022-03-29 |
| 10622530 | Aluminum nitride-based semiconductor deep ultraviolet light-emitting device | Shuhichiroh Yamamoto | 2020-04-14 |
| 10026869 | Nitride semiconductor light-emitting device and method for producing the same | Shigetoshi Ito | 2018-07-17 |
| 9099586 | Nitride semiconductor light-emitting element and method for producing nitride semiconductor light-emitting element | Masaya Ueda, Yuichi Sano, Toshiyuki Okumura | 2015-08-04 |
| 8816321 | Nitride semiconductor light-emitting device and method for producing the same | Tadashi Takeoka, Yoshihiko Tani, Kazuya Araki | 2014-08-26 |
| 8698168 | Semiconductor device having aluminum nitride layer with void formed therein | Masataka Ohta, Yoshinobu Aoyagi, Misaichi Takeuchi | 2014-04-15 |
| 8502238 | Nitride-composite semiconductor laser element, its manufacturing method, and semiconductor optical device | Shigetoshi Ito, Takayuki Yuasa, Mototaka Taneya, Zenpei Tani, Kensaku Motoki | 2013-08-06 |
| 8334544 | Nitride semiconductor laser device including growth-inhibiting film at dislocation concentrated region | Shigetoshi Ito, Takayuki Yuasa, Mototaka Taneya, Zenpei Tani, Kensaku Motoki | 2012-12-18 |
| 8076165 | Method of manufacturing p-type nitride semiconductor and semiconductor device fabricated by the method | Yuhzoh Tsuda, Shigetoshi Ito, Mototaka Taneya, Teruyoshi Takakura | 2011-12-13 |
| 7858992 | Nitride semiconductor light-emitting device, method of fabricating it, and semiconductor optical apparatus | Teruyoshi Takakura, Takeshi Kamikawa, Yuhzoh Tsuda, Shigetoshi Ito, Takayuki Yuasa +2 more | 2010-12-28 |
| 7781244 | Method of manufacturing nitride-composite semiconductor laser element, with disclocation control | Shigetoshi Ito, Takayuki Yuasa, Mototaka Taneya, Zenpei Tani, Kensaku Motoki | 2010-08-24 |
| 7663158 | Nitride compound semiconductor light emitting device and method for producing the same | Takayuki Yuasa, Atsushi Ogawa, Yuhzoh Tsuda, Masahiro Araki | 2010-02-16 |
| 7579627 | Nitride semiconductor light-emitting device, method of fabricating it, and semiconductor optical apparatus | Teruyoshi Takakura, Takeshi Kamikawa, Yuhzoh Tsuda, Shigetoshi Ito, Takayuki Yuasa +2 more | 2009-08-25 |
| 7515621 | Nitride semiconductor laser element | Shigetoshi Ito, Yuhzoh Tsuda | 2009-04-07 |
| 7498608 | Nitride-composite semiconductor laser element, its manufacturing method, and semiconductor optical device | Shigetoshi Ito, Takayuki Yuasa, Mototaka Taneya, Zenpei Tani, Kensaku Motoki | 2009-03-03 |
| 7462882 | Nitride semiconductor light-emitting device, method of fabricating it, and semiconductor optical apparatus | Teruyoshi Takakura, Takeshi Kamikawa, Yuhzoh Tsuda, Shigetoshi Ito, Takayuki Yuasa +2 more | 2008-12-09 |
| 7352012 | Nitride compound semiconductor light emitting device and method for producing the same | Takayuki Yuasa, Atsushi Ogawa, Yuhzoh Tsuda, Masahiro Araki | 2008-04-01 |
| 7064357 | Nitride compound semiconductor light emitting device and method for producing the same | Takayuki Yuasa, Atsushi Ogawa, Yuhzoh Tsuda, Masahiro Araki | 2006-06-20 |
| 6685773 | Crystal growth method for nitride semiconductor, nitride semiconductor light emitting device, and method for producing the same | Takayuki Yuasa | 2004-02-03 |
| 6590919 | Nitride group compound semiconductor laser device and method for producing the same | — | 2003-07-08 |
| 6586777 | Nitride semiconductor light emitting device | Takayuki Yuasa, Atsushi Ogawa, Masahiro Araki, Yuhzoh Tsuda, Mototaka Taneya | 2003-07-01 |