| United States patent | Q43305660 |
| P1246 | patent number | US11178488 |
| P2093 | author name string | Ryutaro Watanabe (Tokyo) | |
| Toru Chinen (Kanagawa) | |||
| Shigetoshi Hayashi (Tokyo) | |||
| Toru Nakagawa (Chiba) | |||
| Tetsunori Itabashi (Kanagawa) | |||
| Asaya Hondo (Chiba) | |||
| Satoko Kitagawa (Tokyo) | |||
| P17 | country | United States of America | Q30 |
| P127 | owned by | Sony Group | Q41187 |
| P793 | significant event | consent | Q231043 |
| filing | Q17146064 | ||
| P1476 | title | Acoustic device |
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