Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9826086 | Communication system and communication method | Liang Zhang, Takao Okamawari | 2017-11-21 |
| 9692531 | Method and system of measuring communication quality | Daisuke Maeda, Liang Zhang, Takao Okamawari | 2017-06-27 |
| 9668165 | Measuring communication quality via a mobile communication network | Liang Zhang, Takao Okamawari | 2017-05-30 |