Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9647939 | Communication device and communication system | Atsushi Kumagai, Masayuki Miura, Kazutaka Shimoosako | 2017-05-09 |
| 9325606 | Communication system, communication route control method, and communication apparatus | Atsushi Kumagai, Masayuki Miura, Kazutaka Shimoosako | 2016-04-26 |
| 9031410 | Customer premises optical network unit and optical transmission system | Kazutaka Shimoosako, Katsuya Aboshi | 2015-05-12 |
| 8417119 | Customer premises optical network unit and optical transmission system | Kazutaka Shimoosako, Katsuya Aboshi | 2013-04-09 |
| 8412041 | Subscriber premises side optical network unit and optical transmission system | Katsuya Aboshi, Kazutaka Shimoosako | 2013-04-02 |
| 8396365 | Customer premises optical network unit | Katsuya Aboshi, Kazutaka Simoosako | 2013-03-12 |
| 8059961 | Customer premises optical network unit and optical transmission system | Kazutaka Shimoosako, Katsuya Aboshi | 2011-11-15 |
| 7783201 | Optical repeater device and optical transmission system | Masayuki Miura, Fuyuki Takeuchi | 2010-08-24 |
| 5388089 | Apparatus for connecting multiplex transmission systems | Kyosuke Hashimoto | 1995-02-07 |
| 5307340 | Multipath transmission system with a troubleshooting arrangement for detecting failure | Kiyoshi Inoue, Kyosuke Hashimoto, Yutaka Matsuda, Shoji Hara, Seiji Hirano +2 more | 1994-04-26 |