Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10057677 | Electroacoustic transducer and acoustic resistor | Yoji Honda, Kenzo Tsuihiji, Kenji Arai | 2018-08-21 |
| 9872098 | Wiring structure for electroacoustic transducer for digital signal and headphone for digital signal | Kenzo Tsuihiji, Yoji Honda, Kenji Arai | 2018-01-16 |