Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9883280 | Headphone and acoustic characteristic adjusting method | Takahiro Suzuki | 2018-01-30 |
| 9167335 | Headphone | Tomohiro Ito, Hiroaki Ishiguro | 2015-10-20 |
| 8965029 | Headphone | Kenzi Mizuno, Tomohiro Ito | 2015-02-24 |
| 8948435 | Driver unit and earphone device | Koji Nageno, Takahiro Suzuki | 2015-02-03 |
| 8565468 | Headphone | Tomohiro Ito, Hiroaki Ishiguro | 2013-10-22 |
| 8532324 | Headphone | Koji Nageno | 2013-09-10 |
| 8213665 | Headphone | Keitaro Fujiwara, Naotaka Tsunoda | 2012-07-03 |
| 8208672 | Headphone | Koji Nageno | 2012-06-26 |