Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6452908 | Route searching circuit and communication apparatus using the same | Motoo Nishihara | 2002-09-17 |
| 6415313 | Communication quality control system | Takafumi Sera, Akira Arutaki | 2002-07-02 |