Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6466715 | Multiplexer/demultiplexer for WDM optical signals | Kenji Akiba | 2002-10-15 |
| 6222956 | Optical wavelength multiplexer/demultiplexer | Kenji Akiba, Kimio Inaba | 2001-04-24 |