Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6625190 | Semiconductor laser device having thickened impurity-doped aluminum-free optical waveguide layers | Toshiaki Fukunaga, Mitsugu Wada | 2003-09-23 |
| 6594297 | Laser apparatus in which surface-emitting semiconductor is excited with semiconduct laser element and high-order oscillation modes are suppressed | — | 2003-07-15 |
| 6567444 | High-power semiconductor laser device in which near-edge portions of active layer are removed | — | 2003-05-20 |
| 6560264 | Stripe type semiconductor light emitting element having InGaN active layer, combined with optical resonator including wavelength selection element | — | 2003-05-06 |