Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6689705 | Synthetic quartz glass optical material and optical member | Akira Fujinoki, Hiroyuki Nishimura, Toru Yokota, Yasuyuki Yaginuma, Akira Sato | 2004-02-10 |
| 6684009 | Arrayed waveguide grating and multiplexer/demultiplexer system and multiplexer/demultiplexer device using thereof | — | 2004-01-27 |