Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10491984 | Speaker device | Takafumi Yuasa, Akihisa Kawamura, Toshiyuki Matsumura, Shuji Saiki, Satoshi Takayama +3 more | 2019-11-26 |
| 10469925 | Speaker device | Suemei Fukuhara, Takafumi Yuasa, Churo Sato, Ippei Kiyama, Satoshi Takayama | 2019-11-05 |