Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10694296 | Shallow sub woofer | Yoichiro Sumitani, Chih-Huang Hsiao | 2020-06-23 |
| 10349180 | Shallow sub woofer | Yoichiro Sumitani, Chih-Huang Hsiao | 2019-07-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10694296 | Shallow sub woofer | Yoichiro Sumitani, Chih-Huang Hsiao | 2020-06-23 |
| 10349180 | Shallow sub woofer | Yoichiro Sumitani, Chih-Huang Hsiao | 2019-07-09 |