Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6874106 | Method and device for notifying server failure recovery | Shigeru Suzuyama | 2005-03-29 |
| 6553221 | Incoming call notification apparatus | Masayuki Nakamura, Atsushi Tsukazoe | 2003-04-22 |