Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10117013 | Digitally driven headphone | — | 2018-10-30 |
| 10057677 | Electroacoustic transducer and acoustic resistor | Yoji Honda, Koichiro Tanoue, Kenji Arai | 2018-08-21 |
| 9872098 | Wiring structure for electroacoustic transducer for digital signal and headphone for digital signal | Koichiro Tanoue, Yoji Honda, Kenji Arai | 2018-01-16 |