Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8946772 | Substrate for epitaxial growth, process for manufacturing GaN-based semiconductor film, GaN-based semiconductor film, process for manufacturing GaN-based semiconductor light emitting element and GaN-based semiconductor light emitting element | Hiromitsu Kudo, Teruhisa Nakai, Seong Jin Kim | 2015-02-03 |
| 8829778 | White light-emitting semiconductor devices | Hiroaki Sakuta, Kazuhiko Kagawa, Yoshihito Satou, Shin Hiraoka | 2014-09-09 |
| 8716728 | Nitride semiconductor light-emitting diode device | Hiromitsu Kudo, Hirokazu Taniguchi, Shin Hiraoka, Takahide Joichi, Toshihiko Shima | 2014-05-06 |
| 8581488 | White light-emitting semiconductor devices | Hiroaki Sakuta, Kazuhiko Kagawa, Yoshihito Satou, Shin Hiraoka | 2013-11-12 |
| 8455886 | Light emitting device using GaN LED chip | Takahide Joichi, Shin Hiraoka, Toshihiko Shima, Hirokazu Taniguchi | 2013-06-04 |
| 8158990 | Light emitting device using GaN LED chip | Takahide Joichi, 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, Takahide Joichi | 2012-04-17 |
| 8012783 | Semiconductor element and method for manufacturing same | Tsuyoshi Takano, Takahide Joichi | 2011-09-06 |
| 7589001 | Semiconductor base and its manufacturing method, and semiconductor crystal manufacturing method | Kazuyuki Tadatomo, Yoichiro Ouchi, Masahiro Koto | 2009-09-15 |
| 7504324 | Semiconductor base and its manufacturing method, and semiconductor crystal manufacturing method | Kazuyuki Tadatomo, Yoichiro Ouchi, Masahiro Koto | 2009-03-17 |
| 7179667 | Semiconductor base material and method of manufacturing the material | Kazuyuki Tadatomo, Yoichiro Ouchi, Takashi Tsunekawa | 2007-02-20 |
| 7115486 | Semiconductor base and its manufacturing method, and semiconductor crystal manufacturing method | Kazuyuki Tadatomo, Yoichiro Ouchi, Masahiro Koto | 2006-10-03 |
| 7053420 | GaN group semiconductor light-emitting element with concave and convex structures on the substrate and a production method thereof | Kazuyuki Tadatomo, Yoichiro Ouchi, Takashi Tsunekawa | 2006-05-30 |
| 6940098 | Semiconductor base and its manufacturing method, and semiconductor crystal manufacturing method | Kazuyuki Tadatomo, Yoichiro Ouchi, Masahiro Koto | 2005-09-06 |
| 6794210 | Method for growing GaN compound semiconductor crystal and semiconductor substrate | Yoichiro Ouchi, Masahiro Koto, Kazuyuki Tadatomo | 2004-09-21 |
| 6734515 | Semiconductor light receiving element | Kazuyuki Tadatomo, Youichiro Ohuchi, Masahiro Koto, Kazumasa Hiramatsu, Yutaka Hamamura +1 more | 2004-05-11 |
| 6700179 | Method for growing GaN compound semiconductor crystal and semiconductor substrate | Yoichiro Ouchi, Masahiro Koto, Kazuyuki Tadatomo | 2004-03-02 |
| 6225650 | GAN group crystal base member having low dislocation density, use thereof and manufacturing methods thereof | Kazuyuki Tadatomo, Youichiro Ohuchi, Keiji Miyashita, Kazumasa Hiramatsu, Nobuhiko Sawaki +2 more | 2001-05-01 |
| 5810925 | GaN single crystal | Kazuyuki Tadatomo, Shinichi Watabe, Kazumasa Hiramatsu | 1998-09-22 |
| 5793061 | Group-III nitride based light emitter | Youichiro Ohuchi, Shinichi Watabe, Kazuyuki Tadatomo | 1998-08-11 |
| 5770887 | Gan single crystal | Kazuyuki Tadatomo, Shinichi Watabe, Kazumasa Hiramatsu | 1998-06-23 |
| 5710440 | Semiconductor light emitting element with In GaAlP active layer of specified thickness | Takayuki Hashimoto, Keiji Miyashita, Tomoo Yamada, Kazuyuki Tadatomo | 1998-01-20 |
| 5635733 | Semiconductor light emitting element with a current diffusing layer having a changing carrier concentration therein | Takayuki Hashimoto, Keiji Miyashita, Tomoo Yamada, Kazuyuki Tadatomo | 1997-06-03 |
| 5631475 | Semiconductor light emitting element | Shinichi Watabe, Takayuki Hashimoto, Kazuyuki Tadatomo | 1997-05-20 |
| 5414281 | Semiconductor light emitting element with reflecting layers | Shinichi Watabe, Tadatomo Kazuyuki | 1995-05-09 |