Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6401031 | Travel time obtaining system, local map data server, travel time obtaining server, control methods thereof, and recording medium | — | 2002-06-04 |
| 6141751 | User identifying method and system in computer communication network | — | 2000-10-31 |
| 5679987 | Method and device for obtaining connectivity information of telecommunication facilities | — | 1997-10-21 |