Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9693129 | Headphone type acoustic apparatus | Jo Kamada, Asako Kawamura, Yasuhiro Onogi | 2017-06-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9693129 | Headphone type acoustic apparatus | Jo Kamada, Asako Kawamura, Yasuhiro Onogi | 2017-06-27 |