- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public address systems
- H04R 17/00 - Piezoelectric transducers; Electrostrictive transducers
Patent holdings for IPC class H04R 17/00
Total number of patents in this class: 2723
10-year publication summary
|
228
|
168
|
190
|
210
|
243
|
221
|
197
|
250
|
172
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyocera Corporation | 13344 |
206 |
| LG Display Co., Ltd. | 12892 |
177 |
| FUJIFILM Corporation | 28805 |
175 |
| Murata Manufacturing Co., Ltd. | 23702 |
171 |
| Shenzhen Shokz Co., Ltd. | 933 |
64 |
| Panasonic Corporation | 20315 |
36 |
| Olympus Corporation | 13275 |
35 |
| Taiyo Yuden Co., Ltd. | 1887 |
34 |
| Sony Corporation | 31541 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
32 |
| Konica Minolta Medical & Graphic, Inc. | 877 |
31 |
| Cochlear Limited | 1809 |
30 |
| USound GmbH | 80 |
29 |
| Seiko Epson Corporation | 18989 |
27 |
| Samsung Display Co., Ltd. | 32798 |
26 |
| Denso Corporation | 23769 |
24 |
| Google LLC | 40853 |
24 |
| NEC Casio Mobile Communications, Ltd. | 429 |
24 |
| Rohm Co., Ltd. | 6346 |
23 |
| Samsung Electronics Co., Ltd. | 139001 |
22 |
| Other owners | 1500 |