Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9166815 | Communication apparatus and communication controlling method in ring network | Mami Sekido | 2015-10-20 |
| 8199639 | Path protection method and layer-2 switch | Masami Doukai, Ko Takatori | 2012-06-12 |
| 8027262 | Method and apparatus for keeping track of virtual LAN topology in network of nodes | Hiroyuki Kaneko, Kazuyuki Tajima, Kou Takatori | 2011-09-27 |
| 7957267 | Fault detection device | Yasushi Sasagawa, Masami Doukai, Kou Takatori | 2011-06-07 |
| 7636299 | Packet repeater | Akihiro Asa, Hideji Abe, Osamu Tsurumi, Hiroyuki Kaneko | 2009-12-22 |
| 7440397 | Protection that automatic and speedily restore of Ethernet ring network | Osamu Tsurumi, Akio Endou, Kazukuni Ugai, Akihiro Asa | 2008-10-21 |
| 7366165 | Input line interface device and packet communication device | Masakatsu Nagata, Hiroshi Tomonaga, Naoki Matsuoka, Tsuguo Kato | 2008-04-29 |
| 7304946 | Packet multiplexing control method and a concentrator using the same | Katsuhiko Nakamoto, Takumi Maruyama, Hiroyuki Kaneko, Osamu Tsurumi | 2007-12-04 |
| 7227861 | Packet switch device | Hiroshi Tomonaga, Masakatsu Nagata, Naoki Matsuoka, Kenichi Okabe, Shiro Uriu | 2007-06-05 |
| 7058751 | Packet switch | Hiroshi Tomonaga, Naoki Matsuoka, Masakatsu Nagata, Tsuguo Kato, Tetsuaki Wakabayashi | 2006-06-06 |
| 7046685 | Scheduling control system and switch | Naoki Matsuoka, Hiroshi Tomonaga, Tsuguo Kato | 2006-05-16 |
| 7023865 | Packet switch | Naoki Matsuoka, Hiroshi Tomonaga, Masakatsu Nagata | 2006-04-04 |
| 7016366 | Packet switch that converts variable length packets to fixed length packets and uses fewer QOS categories in the input queues that in the outout queues | Hiroshi Tomonaga, Naoki Matsuoka, Tsuguo Kato | 2006-03-21 |
| 6963577 | Packet Switch | Hiroshi Tomonaga, Naoki Matuoka, Tsuguo Kato | 2005-11-08 |
| 6920145 | Packet switch device and scheduling control method | Naoki Matsuoka, Hiroshi Tomonaga | 2005-07-19 |
| 6771600 | Packet insertion interval control system and packet insertion interval control method | Takeshi Terada, Yasutaka Ohno, Yasuhiro Ooba | 2004-08-03 |
| 6687225 | Bandwidth control apparatus | Hiroshi Tomonaga, Naoki Matsuoka, Naotoshi Watanabe, Yasuhiro Ooba, Hichiro Hayami | 2004-02-03 |
| 6671257 | Feedback control method and device in ATM switching system | Toshio Soumiya, Koji Nakamichi, Takeshi Kawasaki, Naotoshi Watanabe, Michio Kusayanagi | 2003-12-30 |
| 6094418 | Feedback control method and device in ATM switching system | Toshio Soumiya, Koji Nakamichi, Takeshi Kawasaki, Naotoshi Watanabe, Michio Kusayanagi | 2000-07-25 |