Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668116 | Arrayed waveguide grating type optical multiplexer/demultiplexer | Kazuhisa Kashihara, Kazutaka Nara, Yoshinobu Nekado | 2003-12-23 |
| 6591044 | Optical waveguide circuit module | Kazuhisa Kashihara, Kazutaka Nara, Takeshi Nakajima | 2003-07-08 |