Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12394403 | Active noise control system | Keita Tanno | 2025-08-19 |
| 12356145 | Speaker displacement detection calibration method and speaker displacement detection apparatus | — | 2025-07-08 |
| 12338942 | Seamless steel pipe and method of manufacture thereof | Shunsuke Sasaki, Hiroyuki Yamasaki, Hiroyuki Fukuda | 2025-06-24 |
| 12262194 | Dynamic acoustic control systems and methods | Taiji Karasawa, Francesto Villamizar | 2025-03-25 |
| 12112733 | Communication support system | — | 2024-10-08 |
| 12052549 | Speaker | Masashi Kaneko, Tadashi George Sakashita, Arata Tada | 2024-07-30 |
| 12035115 | Speaker distortion correction device | Yuji Saito, Hiroki Toita, Hiroyuki Taguchi, Tatsuya Mashiko | 2024-07-09 |
| 11956604 | In-vehicle communication support system | Hiroyuki Taguchi | 2024-04-09 |
| 11922916 | Active noise control system | — | 2024-03-05 |
| 11805367 | Speaker | Hiroki Toita, Ryo Ito | 2023-10-31 |
| 11756523 | Active noise control system | — | 2023-09-12 |
| 11622195 | Active noise control system utilizing noise cancellation sounds | Yoshinobu Kajikawa | 2023-04-04 |
| 11501748 | Active noise control system | — | 2022-11-15 |
| 11482204 | Active noise control system | Yuji Saito, Yoshinobu Kajikawa | 2022-10-25 |
| 11462203 | In-vehicle communication support system | Yoshinobu Kajikawa | 2022-10-04 |
| 11463808 | Active noise control system | Yoshinobu Kajikawa | 2022-10-04 |
| 11462205 | In-vehicle communication support system | Yoshinobu Kajikawa | 2022-10-04 |
| 11462202 | Active noise control system based on head position | Yoshinobu Kajikawa | 2022-10-04 |
| 11441203 | Method for quenching steel pipe, equipment for quenching steel pipe, and method for manufacturing steel pipe | Hiroyuki Fukuda, Hiroyuki Yamasaki, Yasuhiro Nagayama, Shunsuke Sasaki | 2022-09-13 |
| 11335314 | Active noise control system comprising auxiliary filter selection based on object position | Yoshinobu Kajikawa | 2022-05-17 |
| 11276385 | Noise reduction device, vehicle, noise reduction system, and noise reduction method | Keita Tanno, Mone Isami, Ryo Ito, Haruki UESUGI | 2022-03-15 |
| 11043202 | Active noise control system, setting method of active noise control system, and audio system | Yoshinobu Kajikawa | 2021-06-22 |
| 10854187 | Active noise control system and on-vehicle audio system | Yoshinobu Kajikawa | 2020-12-01 |
| 10109295 | Audio processing apparatus and audio processing method | — | 2018-10-23 |
| 6267296 | Two-dimensional code and method of optically reading the same | Tadao Ooshima | 2001-07-31 |