Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8175315 | Headphone set and method of producing the same | Masaaki Tanaka, Makoto Ito, Yuzuko Sasaki | 2012-05-08 |
| D524793 | Headphone | Shinichi Ohtsuki | 2006-07-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8175315 | Headphone set and method of producing the same | Masaaki Tanaka, Makoto Ito, Yuzuko Sasaki | 2012-05-08 |
| D524793 | Headphone | Shinichi Ohtsuki | 2006-07-11 |