Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10491984 | Speaker device | Kazuki Honda, Takafumi Yuasa, Akihisa Kawamura, Toshiyuki Matsumura, Shuji Saiki +3 more | 2019-11-26 |
| 10469925 | Speaker device | Kazuki Honda, Takafumi Yuasa, Churo Sato, Ippei Kiyama, Satoshi Takayama | 2019-11-05 |
| 6343132 | Loudspeaker | Isao Kuramitsu, Tatsuya Omori, Toshiyuki Mizutani | 2002-01-29 |
| 5140460 | Motion-picture screen | Satoshi Kageyama | 1992-08-18 |
| 5073945 | Loudspeaker system | Satoshi Kageyama | 1991-12-17 |