Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10403260 | Digital electroacoustic transducer apparatus | Toyokazu Eguchi | 2019-09-03 |
| 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 |
| 9800976 | Electroacoustic transducer | Yoji Honda, Koichiro Tanoue, Kenji Arai | 2017-10-24 |
| 9794682 | Electroacoustic transducer and acoustic resistor | Yoji Honda, Koichiro Tanoue, Kenji Arai | 2017-10-17 |
| 9609422 | Headphone unit and ear muff unit | Yoji Honda, Koichiro Tanoue, Kenji Arai | 2017-03-28 |