Issued Patents All Time
Showing 1–25 of 101 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12425775 | Magnetic circuit for acoustic transducer, and speaker unit | Takahiro Terada, Yukio Wakui, Tsunenori SANO | 2025-09-23 |
| 12388406 | Acoustic apparatus | Yohei Ohtani | 2025-08-12 |
| 12261523 | Switching power supply | Yoshiro MIYAKE | 2025-03-25 |
| 11756715 | Signal converter | — | 2023-09-12 |
| 11683637 | Signal converter | — | 2023-06-20 |
| 11553271 | Speaker apparatus and acoustic system | Takeshi Daishoji | 2023-01-10 |
| 11356778 | Speaker controller, signal supplying device, and speaker system | — | 2022-06-07 |
| 11330362 | Acoustic device | Akihiko Nozaki, Tsunenori SANO | 2022-05-10 |
| 11260526 | Driving control apparatus for actuator | — | 2022-03-01 |
| 11245368 | Class D amplifier | Takeshi Togawa | 2022-02-08 |
| 10659888 | Sensor output device, sound output device, and musical instrument | Susumu Ishibashi, Yohei Ohtani, Tomonobu Sugimoto | 2020-05-19 |
| 10142736 | Electroacoustic transducer | — | 2018-11-27 |
| 10038416 | Self-oscillating class D amplifier | Takeshi Togawa | 2018-07-31 |
| D808933 | Speaker diaphragm | Soichi Takigawa, Kenichi Yoshinaga, Akihiko Nozaki | 2018-01-30 |
| D808932 | Speaker diaphragm | Soichi Takigawa, Kenichi Yoshinaga, Akihiko Nozaki | 2018-01-30 |
| 9680432 | Power amplifier and input signal adjusting method | Yohei Otani | 2017-06-13 |
| 9647614 | Power amplifier | Yohei Otani | 2017-05-09 |
| 9560453 | Electroacoustic transducer | — | 2017-01-31 |
| D775608 | Speaker diaphragm | Soichi Takigawa, Kenichi Yoshinaga, Akihiko Nozaki | 2017-01-03 |
| 9398376 | Electroacoustic transducer | Akira Arai | 2016-07-19 |
| 9386389 | Audio signal processing device | — | 2016-07-05 |
| 9379679 | Self-oscillating class-D amplifier and self-oscillating frequency control method for self-oscillating class-D amplifier | — | 2016-06-28 |
| 9240174 | Electric stringed musical instrument and method of designing the same | Yuichiro Suenaga, Shinya Tamura | 2016-01-19 |
| 9106988 | Electroacoustic transducer | — | 2015-08-11 |
| 9008318 | Audio signal processing device | — | 2015-04-14 |