Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10770115 | Recording medium, playback method, and playback device | Hiroshi Yahata | 2020-09-08 |
| 10553253 | Recording medium, playback method, and playback device | Hiroshi Yahata | 2020-02-04 |