Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670211 | Semiconductor laser device | — | 2003-12-30 |
| 6668001 | Semiconductor laser diode | — | 2003-12-23 |
| 6618417 | Ridge waveguide semiconductor laser diode | Yoshikazu Ikegami, Takeshi Namegaya, Akihiko Kasukawa | 2003-09-09 |
| 6560260 | Ridge waveguide semiconductor laser diode | Yoshikazu Ikegami, Takeshi Namegaya, Akihiko Kasukawa | 2003-05-06 |
| 6549554 | Semiconductor laser element, semiconductor etchant, and method of fabricating the semiconductor laser element | Takeshi Shiojima, Keiichi Yabusaki | 2003-04-15 |