Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12200435 | Sound reproduction device | Isao Kakuhari, Takeshi Sakai | 2025-01-14 |
| 12156004 | Loudspeaker device | Akihisa Kawamura, Atsushi Sakaguchi, Isao Kakuhari | 2024-11-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12200435 | Sound reproduction device | Isao Kakuhari, Takeshi Sakai | 2025-01-14 |
| 12156004 | Loudspeaker device | Akihisa Kawamura, Atsushi Sakaguchi, Isao Kakuhari | 2024-11-26 |