Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9906380 | Virtualization method for an access network system and its management architecture | — | 2018-02-27 |
| 9621685 | Architecture for an access network system management protocol control under heterogeneous network management environment | — | 2017-04-11 |
| 8000604 | Orthogonal frequency division multiple access (OFDMA) based passive optical network (PON) architecture and its extension to long distance | Dayou Qian, Junqiang Hu, Jianjun Yu, Philip Nan Ji, Lei Xu +2 more | 2011-08-16 |
| 7792107 | Center-side terminal of optical network capable of carrying out processing depending on subscriber number | Sou Satou | 2010-09-07 |
| 6061355 | ATM transmission system and method having variable transmission process functions and route configuration | — | 2000-05-09 |
| 5982743 | Performance monitor system, transmission device and performance monitor method of transmission line | — | 1999-11-09 |
| 5933422 | Communication network recoverable from link failure using prioritized recovery classes | Hiroshi Suzuki | 1999-08-03 |
| 5479396 | Redundant system having signal path operation function | — | 1995-12-26 |
| 5459718 | Cross connection by using a switch request flag in a digital signal fails before supply to cross connected switch units | — | 1995-10-17 |
| 5365511 | Reliable cross-connection network | — | 1994-11-15 |
| 5241550 | System for accurately confirming cross-connection in a cross-connection network | — | 1993-08-31 |
| 5179592 | Data scrambler and descrambler capable of preventing continuous bit zeros or ones | — | 1993-01-12 |
| 5173689 | Self-distributed logical channel node failure restoring system | — | 1992-12-22 |
| 5033594 | Change-speed construction for propelling system of work vehicle | Arinobu Ishida, Naotaka Kanai, Toshiyuki Matsumoto, Shinichi Takeda, Hiroshi Nishikawa +1 more | 1991-07-23 |