Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6785454 | Optical waveguide and optical circuit base component | — | 2004-08-31 |
| 6694069 | Optical integrated circuit substrate and optical module | Katsuhiro Kaneko, Shigeo Tanahashi, Tokuichi Yamaji, Yuriko Ueno | 2004-02-17 |