Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9736421 | Information reproduction system, information reproduction method, information reproduction device, and access analysis device | Kenji Esumi | 2017-08-15 |
| 9661259 | Playback device, control method, and program | Kenji Esumi | 2017-05-23 |