Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6472978 | Traffic system to prevent from accidents | Masahito Takagi | 2002-10-29 |
| 6441748 | Road surface condition monitoring system using sensors disposed under the road | Masahito Takagi | 2002-08-27 |
| 6411889 | Integrated traffic monitoring assistance, and communications system | Ichiro Mizunuma | 2002-06-25 |