Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7483470 | Semiconductor laser capable of coupling with single mode optical fiber at high coupling efficiency | Yasuaki Nagashima, Atsushi Yamada, Tomoyuki Kikugawa | 2009-01-27 |
| 6987285 | Semiconductor light emitting device in which high-power light output can be obtained with a simple structure including InGaAsP active layer not less than 3.5 microns and InGaAsP and InP cladding | Yasuaki Nagashima, Atsushi Yamada, Tomoyuki Kikugawa | 2006-01-17 |