Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11138999 | Recording medium, playback method, and playback device | Hiroshi Yahata | 2021-10-05 |
| 11133034 | Recording medium, playback method, and playback device | Hiroshi Yahata | 2021-09-28 |