Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7599376 | Converter and communication control method | Shinya Nakagaki, Toshikazu Inoue, Kazuya Kumazaki, Mineharu Hattori, Tetsuji Ichikawa +2 more | 2009-10-06 |
| 5857092 | Interface apparatus for SDH/SONET interconnection | Yoshinori Nakamura, Tatsuya Oku, Miki Hagino, Hiroaki Mori, Yuuki Tsuji | 1999-01-05 |
| 5557437 | Optical terminal system having self-monitoring function | Toshiharu Sakai, Yoshinori Nakamura, Takashi Umegaki, Miki Hagino, Hiroaki Mori +4 more | 1996-09-17 |