Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661974 | Optical transmitter and optical transmission system | Yuichi Akiyama, Hiroki Ooi, Terumi Chikama | 2003-12-09 |
| 6606424 | Apparatus and method for optical modulation and demodulation | Hiroki Ooi, Minoru Seino | 2003-08-12 |
| 6573985 | Wavelength dispersion measuring device and a method thereof | Sadao Ibukuro | 2003-06-03 |