Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9362449 | High efficiency light emitting diode and method of fabricating the same | Chang Yeon Kim, Dae-sung Cho, Ki Bum Nam, Young-Wug Kim, Jong Kyun You +2 more | 2016-06-07 |
| 8716728 | Nitride semiconductor light-emitting diode device | Hiromitsu Kudo, Hirokazu Taniguchi, Hiroaki Okagawa, Shin Hiraoka, Toshihiko Shima | 2014-05-06 |
| 8455886 | Light emitting device using GaN LED chip | Hiroaki Okagawa, Shin Hiraoka, Toshihiko Shima, Hirokazu Taniguchi | 2013-06-04 |
| 8158990 | Light emitting device using GaN LED chip | Hiroaki Okagawa, Shin Hiraoka, Toshihiko Shima, Hirokazu Taniguchi | 2012-04-17 |
| 8158994 | GaN LED element and light emitting device having a structure to reduce light absorption by a pad electrode included therein | Shin Hiraoka, Hiroaki Okagawa | 2012-04-17 |
| 8012783 | Semiconductor element and method for manufacturing same | Tsuyoshi Takano, Hiroaki Okagawa | 2011-09-06 |