Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7830924 | Stuffing and destuffing operations when mapping low-order client signals into high-order transmission frames | Kenji Kawamura, Masatoshi Shibasaki, Yoshimasa Kusano, Yusuke Honda, Hiromi Murakami | 2010-11-09 |
| 7551436 | Electronic apparatus | Koji Hata, Seiji Asai, Susumu Miyagawa, Hiroshi Kuwaki, Takeshi Kiyose | 2009-06-23 |
| 5838475 | Optical regenerator and an optical transmission system | Ryoji Takeyari, Yukihiko Wakai, Kazuo Hagimoto | 1998-11-17 |
| 5576876 | Optical regenerator and an optical transmission system | Ryoji Takeyari, Yukihiko Wakai, Kazuo Hagimoto | 1996-11-19 |
| 4862103 | Variable equalization system | — | 1989-08-29 |