- 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
|
96
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyocera Corporation | 13792 |
206 |
| LG Display Co., Ltd. | 13401 |
189 |
| FUJIFILM Corporation | 29329 |
179 |
| Murata Manufacturing Co., Ltd. | 24478 |
175 |
| Shenzhen Shokz Co., Ltd. | 1106 |
71 |
| Panasonic Corporation | 20128 |
36 |
| Olympus Corporation | 13186 |
35 |
| Cochlear Limited | 1879 |
34 |
| Taiyo Yuden Co., Ltd. | 1931 |
34 |
| Sony Corporation | 31080 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 31273 |
32 |
| Konica Minolta Medical & Graphic, Inc. | 786 |
31 |
| USound GmbH | 83 |
31 |
| Samsung Display Co., Ltd. | 34595 |
27 |
| Seiko Epson Corporation | 19321 |
27 |
| Rohm Co., Ltd. | 6433 |
27 |
| Denso Corporation | 24248 |
24 |
| Google LLC | 42096 |
24 |
| NEC Casio Mobile Communications, Ltd. | 429 |
24 |
| TDK Corporation | 6713 |
23 |
| Other owners | 1544 |