Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11240592 | Bass reflex port and acoustic device | Akira Miki, Katsuya Uchida | 2022-02-01 |
| 10750273 | Bass reflex port and bass reflex type speaker | Katsuya Uchida, Akira Miki | 2020-08-18 |
| 10045119 | Acoustic structure and acoustic panel | Hideto Matsuda, Akira Miki | 2018-08-07 |
| 9479851 | Vehicle sound generation apparatus, and vehicle sound generation method | Hideki Osawa, Heiji Maruyama, Yasuyuki Suzuki, Yosuke Kuno, Yoshikazu Honji | 2016-10-25 |
| 9473847 | Acoustic apparatus | Yasuo SHIOZAWA, Koji Okazaki | 2016-10-18 |
| 9407983 | Microphone device | Kunihiro Kumagai, Yasuo SHIOZAWA, Shuichi Esaki, Kiyohiko Goto, Yoshiaki Tsutsui | 2016-08-02 |
| 9327644 | Sound generating device for vehicle, and sound generating method for vehicle | Hideki Osawa, Heiji Maruyama, Yasuyuki Suzuki, Yosuke Kuno, Yoshikazu Honji | 2016-05-03 |
| D752561 | Port for audio equipment | Akira Miki | 2016-03-29 |
| D752559 | Port for audio equipment | Akira Miki | 2016-03-29 |
| D752560 | Port for audio equipment | Akira Miki | 2016-03-29 |
| 9275612 | Keyboard instrument | Tsukasa SUENAGA, Akira Miki | 2016-03-01 |
| D750599 | Port for audio equipment | Akira Miki | 2016-03-01 |
| D750048 | Port for audio equipment | Akira Miki | 2016-02-23 |
| 9241211 | Tubular body, bass reflex port, and acoustic apparatus | Akira Miki | 2016-01-19 |
| 9232300 | Bass reflex port and tubular body | Akira Miki | 2016-01-05 |
| 9224380 | Audio device, and methods for designing and making the audio devices | Yasuo SHIOZAWA | 2015-12-29 |
| D745492 | Port for audio equipment | Akira Miki | 2015-12-15 |
| 8731224 | Acoustic structure including helmholtz resonator | Yasuo SHIOZAWA | 2014-05-20 |
| 8678130 | Audio apparatus | Yasuo SHIOZAWA, Akira Miki | 2014-03-25 |
| 8321043 | Simulation apparatus and program | — | 2012-11-27 |
| 7095865 | Audio amplifier unit | Masaki Katayama | 2006-08-22 |