Issued Patents All Time
Showing 126–128 of 128 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5052051 | Heterodyne receiver for coherent optical communication | Takao Naito, Terumi Chikama, Tetsuya Kiyonaga, Yoshihito Onoda | 1991-09-24 |
| 5050176 | Direct modulation phase-shift-keying system and method | Takao Naito, Terumi Chikama, Tetsuya Kiyonaga, Hiroshi Onaka, Yoshihito Onoda | 1991-09-17 |
| 4965858 | Polarization diversity optical receiver for coherent optical communication | Takao Naito, Terumi Chikama, Tetsuya Kiyonaga, Yoshihito Onoda, Hideo Kuwahara +2 more | 1990-10-23 |