Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618521 | Wavelength multiplexing module with polarization maintaining fibers as depolarizers | — | 2003-09-09 |
| 6539158 | Optical waveguide circuit | Kazuhisa Kashihara, Kazutaka Nara, Takeshi Nakajima | 2003-03-25 |