Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10823393 | LED illumination device with speaker function, and method for extracting light and sound from LED illumination device with speaker function | Syunji Yamamoto, Akira Kabumoto, Masahiro Okumura | 2020-11-03 |
| 10591135 | LED lighting device, and method of extracting light using LED lighting device | Syouta Inoue, Syunji Yamamoto, Hisashi Koaizawa, Tomio Kaise | 2020-03-17 |