Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9344266 | Transmission system, transmission apparatus, and clock synchronization method | Hiroyuki Suzuki, Takashi Nakano, Nobuyuki Kobayashi, Akira Nozawa, Koji Suda | 2016-05-17 |
| 7778160 | Device for synchronizing between an active unit and a standby unit | Takashi Kaiga, Koichi Sugama, Tsutomu Chikazawa, Yukio Katayanagi, Kenichi Yajima +2 more | 2010-08-17 |
| 7639702 | Plug-in card for optical transmission apparatus | Hideki Matsui, Mitsuhiro Kawaguchi, Masahiro Shioda, Takashi Kaiga | 2009-12-29 |
| 7408475 | Power supply monitoring device | Koichi Sugama, Noboru Shimizu, Tsutomu Chikazawa, Kenichi Yajima, Yukio Katayanagi +1 more | 2008-08-05 |
| 6442136 | Traffic shaping device for ATM communication network | Koichi Sugama, Yoshihiro Onoda, Yukio Katayanagi, Toshikazu Yamakawa | 2002-08-27 |