Issued Patents All Time
Showing 1–25 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9324912 | Group III nitride semiconductor light-emitting element and method for producing same | — | 2016-04-26 |
| 9076913 | Group iii nitride semiconductor light-emitting element | Hiroshi Udagawa | 2015-07-07 |
| 8389975 | Group III nitride semiconductor light-emitting device | Tomo Kikuchi | 2013-03-05 |
| 8299451 | Semiconductor light-emitting diode | — | 2012-10-30 |
| 8227790 | Group III nitride semiconductor light-emitting device | Tomo Kikuchi | 2012-07-24 |
| 8222674 | Semiconductor device having a group-III nitride superlattice layer on a silicon substrate | Tadashi Ohachi | 2012-07-17 |
| 8216367 | Method for production of silicon carbide layer, gallium nitride semiconductor device and silicon substrate | — | 2012-07-10 |
| 8134176 | Light-emitting diode and light-emitting diode lamp | Ryouichi Takeuchi | 2012-03-13 |
| 8084781 | Compound semiconductor device | — | 2011-12-27 |
| 8071991 | Light-emitting diode and light-emitting diode lamp | — | 2011-12-06 |
| 8043977 | Method of manufacturing a semiconductor device having a group-III nitride superlattice layer on a silicon substrate | Tadashi Ohachi | 2011-10-25 |
| 8026525 | Boron phosphide-based semiconductor light-emitting device | — | 2011-09-27 |
| 7989926 | Semiconductor device including non-stoichiometric silicon carbide layer and method of fabrication thereof | — | 2011-08-02 |
| 7790481 | Compound semiconductor light-emitting device and production method thereof | Ryouichi Takeuchi, Wataru Nabekura | 2010-09-07 |
| 7781866 | Gallium nitride-based semiconductor stacked structure, method for fabrication thereof, gallium nitride-based semiconductor device and lamp using the device | — | 2010-08-24 |
| 7772599 | Gallium nitride-based semiconductor stacked structure, production method thereof, and compound semiconductor and light-emitting device each using the stacked structure | — | 2010-08-10 |
| 7759225 | Method for fabricating semiconductor layer and light-emitting diode | — | 2010-07-20 |
| 7759149 | Gallium nitride-based semiconductor stacked structure | — | 2010-07-20 |
| 7732830 | Compound semiconductor light-emitting diode | Ryouichi Takeuchi | 2010-06-08 |
| 7732831 | Compound semiconductor light-emitting device with AlGaInP light-emitting layer formed within | Ryouichi Takeuchi, Wataru Nabekura | 2010-06-08 |
| 7732832 | Compound semiconductor light-emitting device including p-type undoped boron-phosphide-based semiconductor layer joined to thin-film layer composed of an undoped hexagonal group III nitride semiconductor | — | 2010-06-08 |
| 7646040 | Boron phosphide-based compound semiconductor device, production method thereof and light emitting diode | — | 2010-01-12 |
| 7622398 | Semiconductor device, semiconductor layer and production method thereof | — | 2009-11-24 |
| 7598593 | N-type ohmic electrode for n-type group III nitride semiconductor, semiconductor light-emitting device with the electrode, and method for forming n-type ohmic electrode | — | 2009-10-06 |
| 7576365 | Group III nitride semiconductor light-emitting device, forming method thereof, lamp and light source using same | Kazuhiro Mitani, Katsuki Kusunoki | 2009-08-18 |