Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6625370 | Optical waveguide and fabricating method thereof, and optical waveguide circuit | Ryoichi Kasahara, Takashi Saida, Yasuhiro Hida | 2003-09-23 |
| 6580862 | Optical waveguide circuit | Toshimi Kominato, Akio Sugita, Yasuyuki Inoue, Yasuhiro Hida | 2003-06-17 |