Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8649397 | DSL terminal-exchange device connecting system and method | Kazuya Yanagi | 2014-02-11 |
| 7881312 | DSL terminal-exchange device connecting system and method | Kazuya Yanagi | 2011-02-01 |
| 7085278 | DSL terminal-exchange device connecting system and method | Kazuya Yanagi | 2006-08-01 |