Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498834 | Speech information communication system | — | 2002-12-24 |
| 6415313 | Communication quality control system | Kenshin Yamada, Akira Arutaki | 2002-07-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498834 | Speech information communication system | — | 2002-12-24 |
| 6415313 | Communication quality control system | Kenshin Yamada, Akira Arutaki | 2002-07-02 |