Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6771907 | Optical ring system | Shuichi Iida, Takashi Yamazaki, Youko Nakabayashi, Shinya Nakamura, Kimio Ozawa +9 more | 2004-08-03 |
| 5917426 | Network system capable of managing connection data | — | 1999-06-29 |
| 5825301 | Cross connect apparatus with routed path protecting function | — | 1998-10-20 |
| 5631902 | Digital cross-connect system | — | 1997-05-20 |
| 5592467 | Network node cross-connection device using selectable memories for new connection in the event of failure | Yayoi Takeuchi | 1997-01-07 |
| 5586247 | Data updating system capable of partially recovering data | Miyuki Harashima | 1996-12-17 |
| 5537405 | Cross-connecting module | — | 1996-07-16 |
| 5450074 | Method for setting branch routes in a three-stage cross-connect switch system | — | 1995-09-12 |
| 5289340 | Structure of an electronic device including a number of printed circuit boards | — | 1994-02-22 |
| 5200746 | Switching module for digital cross-connect systems | — | 1993-04-06 |
| 5032837 | Method for expanding N.times.N three-stage switching network to 2N.times.2N three-stage switching network | — | 1991-07-16 |