Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6580862 | Optical waveguide circuit | Toshimi Kominato, Akio Sugita, Mikitaka Itoh, Yasuhiro Hida | 2003-06-17 |
| 6546161 | No polarization dependent waveguide type optical circuit | Masayuki Okuno, Akira Himeno, Yoshinori Hibino | 2003-04-08 |