Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661974 | Optical transmitter and optical transmission system | Yuichi Akiyama, George Ishikawa, Terumi Chikama | 2003-12-09 |
| 6606424 | Apparatus and method for optical modulation and demodulation | Minoru Seino, George Ishikawa | 2003-08-12 |