Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778808 | Route-adaptive on-demand radio communication system for a driver, communication method using the same, and recording medium storing a program for executing the method | — | 2004-08-17 |
| 6721536 | On-demand type radio transmitting/receiving apparatus and method for car user | — | 2004-04-13 |