Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5357362 | Optical telephone using optical modulator | Yuji Azuma, Yoshihiro Shibata, Shinji Tamura, Nobuo Kuwaki, Akira Fukuda +1 more | 1994-10-18 |
| 5259045 | Optical modulation method operable in an optical transmission path and an optical modulator using the optical modulation method | Yuji Azuma, Yoshihiro Shibata, Shinji Tamura, Nobuo Kuwaki, Akira Fukuda +1 more | 1993-11-02 |