Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10694296 | Shallow sub woofer | Yoichiro Sumitani, Ching-Huang Cheng | 2020-06-23 |
| 10349180 | Shallow sub woofer | Yoichiro Sumitani, Ching-Huang Cheng | 2019-07-09 |
| 8724842 | Universal angle loudspeaker bracket | Yoichiro Sumitani, Chun-Yi Lin, Yu-Ling Cheng | 2014-05-13 |
| 7410361 | Terminal for selectively coupling loads in parallel or in series | Yoichiro Sumitani, Lin Chun-Yi | 2008-08-12 |