- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 17/00 - Piezoelectric transducersElectrostrictive transducers
Patent holdings for IPC class H04R 17/00
Total number of patents in this class: 2806
10-year publication summary
|
228
|
168
|
190
|
210
|
244
|
221
|
199
|
265
|
172
|
95
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyocera Corporation | 13784 |
206 |
| LG Display Co., Ltd. | 13397 |
189 |
| FUJIFILM Corporation | 29305 |
179 |
| Murata Manufacturing Co., Ltd. | 24465 |
175 |
| Shenzhen Shokz Co., Ltd. | 1106 |
71 |
| Panasonic Corporation | 20136 |
36 |
| Olympus Corporation | 13182 |
35 |
| Cochlear Limited | 1876 |
34 |
| Taiyo Yuden Co., Ltd. | 1930 |
34 |
| Sony Corporation | 31093 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 31221 |
32 |
| Konica Minolta Medical & Graphic, Inc. | 791 |
31 |
| USound GmbH | 83 |
31 |
| Samsung Display Co., Ltd. | 34539 |
27 |
| Seiko Epson Corporation | 19319 |
27 |
| Rohm Co., Ltd. | 6428 |
27 |
| Denso Corporation | 24230 |
24 |
| Google LLC | 42038 |
24 |
| NEC Casio Mobile Communications, Ltd. | 429 |
24 |
| TDK Corporation | 6701 |
23 |
| Other owners | 1544 |