Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12317042 | Sub cone and loudspeaker | Yoshitaka KAWASHIMA, Yuki Ishii | 2025-05-27 |
| 12273672 | Loudspeaker | Hiroyuki Morimoto | 2025-04-08 |
| 10531170 | Loudspeaker device and movable-body apparatus equipped with same | Yoshimichi Kajihara, Takuji Miyamoto, Satoshi Koura | 2020-01-07 |
| 10104475 | Loudspeaker magnetic circuit and loudspeaker equipped with same | Satoshi Koura, Tomonori Shibuya | 2018-10-16 |