Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668107 | Method and apparatus for reducing optical insertion loss in planar lightwave circuits through dielectric perturbation optimization | Marshall DePue, Shalini Venkatesh, Hiroaki Okano | 2003-12-23 |
| 6631223 | Optical multiplexer/demultiplexer | Hideaki Arai, Takafumi Chiba | 2003-10-07 |
| 6556749 | Array waveguide grating and method of manufacture thereof | Masahiro Okawa, Koichi Maru, Takafumi Chiba | 2003-04-29 |
| 6549696 | Optical wavelength multiplexer/demultiplexer | Masahiro Okawa, Koichi Maru, Hideki Nounen, Tatsuo Teraoka | 2003-04-15 |