| 6898178 |
ATM device, subscriber system, communication system and backup method |
Isao Wada, Sakae Watanabe |
2005-05-24 |
| 6862290 |
Line switching system and line switching unit of dynamic band variation unit |
Sakae Watanabe, Isao Wada, Kazumasa Azuma |
2005-03-01 |
| 6215794 |
Multiple band change-over method for multiplex communication equipment |
Sakae Watanabe, Kazumasa Azuma, Kaoru Suzuki |
2001-04-10 |
| 6031824 |
Maintenance and supervisory control method and system for multiplex communication equipment |
Kazumasa Azuma, Kaoru Suzuki, Sakae Watanabe |
2000-02-29 |
| 5999516 |
Multiplex communication equipment and communication test method thereof |
Kaoru Suzuki, Kazumasa Azuma, Sakae Watanabe |
1999-12-07 |
| 5953313 |
Circuit switching control method for multiplex communication equipment |
Kazumasa Azuma, Kaoru Suzuki, Sakae Watanabe |
1999-09-14 |