Issued Patents 2011
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8049368 | Load driving circuit and load driving method | Shinichi Miyazaki, Katsunori Yamazaki, Hiroyuki Yoshino, Shoichi Iino | 2011-11-01 |
| 8045735 | Ultrasonic transducer and ultrasonic speaker using the same | Hirokazu Sekino, Yoshiki Fukui, Shinichi Miyazaki | 2011-10-25 |
| 8009846 | Ultrasonic speaker and projector | Hirokazu Sekino, Yoshiki Fukui, Shinichi Miyazaki | 2011-08-30 |
| 7949143 | Ultrasonic transducer, ultrasonic speaker, acoustic system, and control method of ultrasonic transducer | Hirokazu Sekino | 2011-05-24 |
| 7907740 | Electrostatic ultrasonic transducer drive control method, electrostatic ultrasonic transducer, ultrasonic speaker using the same, audio signal reproduction method, ultra-directional acoustic system, and display device | — | 2011-03-15 |
| 7881489 | Ultrasonic transducer and ultrasonic speaker using the same | Hirokazu Sekino, Yoshiki Fukui, Shinichi Miyazaki | 2011-02-01 |