Issued Patents 2023
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11812219 | Asymmetry sound absorbing system via shunted speakers | Xiaopeng Li, Ziqi Yu, Jae Seung Lee, Danil V. Prokhorov | 2023-11-07 |
| 11798771 | Adjustable frequency tube resonators | Hideo Iizuka, Ryohei Tsuruta | 2023-10-24 |
| 11781614 | System for transmitting a flexural wave from one structure to another by impedance matching | Xiaopeng Li, Ziqi Yu | 2023-10-10 |
| 11776525 | Systems and methods for machine learning based active metasurfaces for flexural and/or longitudinal wave control and harmonics generation | Xiaopeng Li, Ziqi Yu, Danil V. Prokhorov | 2023-10-03 |
| 11740351 | Acoustic metamaterial and systems for edge detection | Hideo Iizuka | 2023-08-29 |
| 11723278 | Photo-induced tunable metamaterial | Xiaopeng Li, Hideo Iizuka | 2023-08-08 |
| 11688379 | Plate bending wave absorber | Hideo Iizuka | 2023-06-27 |
| 11688378 | Interlocking blocks for building customizable resonant sound absorbing structures | Hideo Iizuka, Ryohei Tsuruta | 2023-06-27 |
| 11681008 | System and method for modifying signals to determine an incidence angle of an acoustic wave | Ziqi Yu, Xiaopeng Li | 2023-06-20 |
| 11671747 | Tunable loudspeaker absorber | Xiaopeng Li, Hideo Iizuka | 2023-06-06 |
| 11668680 | Plate bending wave direction sensor | Hideo Iizuka | 2023-06-06 |
| 11664779 | Acoustic impedance matching with bubble resonators | Hideo Iizuka | 2023-05-30 |
| 11662048 | Compact duct sound absorber | Hideo Iizuka | 2023-05-30 |
| 11643202 | Drone with semi-rigid structure and selectively actuated arms | Yuyang Song, Hideo Iizuka, Umesh N. Gandhi | 2023-05-09 |
| 11626094 | Membrane acoustic absorber | Hideo Iizuka | 2023-04-11 |
| 11568848 | Airborne acoustic absorber | Hideo Iizuka | 2023-01-31 |
| 11562728 | Shaped acoustic absorber | Hideo Iizuka | 2023-01-24 |