Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10887241 | Communication device, communication system, and communication method | Nobuhito Matsuyama, Mitsuru Nagasaka, Kazuo Sugai, Takayuki Muranaka | 2021-01-05 |
| 10389626 | Transfer device | Takeshi Kumagai, Kazuo Sugai, Takayuki Muranaka | 2019-08-20 |
| 9935897 | Network switching device | Masayuki Shinohara, Nobuhito Matsuyama, Takayuki Muranaka, Isao Kimura | 2018-04-03 |
| 9830403 | Communication apparatus, and CAM failure diagnosis method | Kazuo Sugai, Tomohiko Kouno, Takao Nara | 2017-11-28 |
| 9559986 | Network switching device | Masayuki Shinohara, Nobuhito Matsuyama, Takayuki Muranaka, Isao Kimura | 2017-01-31 |
| 9276876 | Data transfer apparatus and data transfer method | Yasuhiro Kodama, Kazuo Sugai, Takao Nara | 2016-03-01 |
| 9009342 | Network relay apparatus | Yoshihiro Nakao, Masayuki Shinohara, Atsushi Serizawa | 2015-04-14 |
| 8953591 | Packet transferring node | Masaki Yamada, Mitsuru Nagasaka, Takayuki Muranaka, Yoshihiro Nakao | 2015-02-10 |
| 8937869 | Communication device, communication system, and communication fault detection method | Teruo Kaganoi, Tomohiko Kohno, Kazuo Sugai | 2015-01-20 |
| 8826045 | Assessing conditions of power consumption in computer network | Yasuhiro Kodama, Mitsuru Nagasaka, Tomohiko Kouno, Teruo Kaganoi, Takeki Yazaki | 2014-09-02 |
| 8812754 | Network relay device and memory control method | Kentaroh Sugawara, Hiroki Yano, Yuichi Ishikawa | 2014-08-19 |
| 8755288 | Network system, layer 2 switch, and method of detecting occurrence of a fault in a network | Teruo Kaganoi, Tetsuya Nagata | 2014-06-17 |
| 8705540 | Network relay apparatus | — | 2014-04-22 |
| 8625423 | Device and method for relaying packets | Hiroki Yano, Kazuo Sugai, Takao Nara | 2014-01-07 |
| 8483051 | Network relay apparatus | Yasuhiro Kodama, Takao Nara | 2013-07-09 |
| 8472618 | Network switching device | Masayuki Shinohara, Nobuhito Matsuyama, Takayuki Muranaka, Isao Kimura | 2013-06-25 |
| 8422493 | Network relay device and network relay method | Tomohiko Kono, Takao Nara | 2013-04-16 |
| 8412843 | Network relay apparatus | Yoshihiro Nakao, Masayuki Shinohara, Atsushi Serizawa | 2013-04-02 |
| 8335934 | Assessing conditions of power consumption in computer network | Yasuhiro Kodama, Mitsuru Nagasaka, Tomohiko Kouno, Teruo Kaganoi, Takeki Yazaki | 2012-12-18 |
| 8265072 | Frame switching device | Takeki Yazaki | 2012-09-11 |
| 8259718 | Network relay apparatus | Teruo Kaganoi, Tetsuya Nagata | 2012-09-04 |
| 8259714 | Packet transferring node | Masaki Yamada, Mitsuru Nagasaka, Takayuki Muranaka, Yoshihiro Nakao | 2012-09-04 |
| 8064353 | Communication device, communication system, and communication fault detection method | Teruo Kaganoi, Tomohiko Kohno, Kazuo Sugai | 2011-11-22 |
| 8040889 | Packet forwarding device | Takeki Yazaki, Mitsuru Nagasaka | 2011-10-18 |
| 7969880 | Device and method for relaying packets | Hiroki Yano, Kazuo Sugai, Takao Nara | 2011-06-28 |