- 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: 2867
10-year publication summary
|
225
|
164
|
185
|
202
|
240
|
221
|
200
|
272
|
175
|
141
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyocera Corporation | 14005 |
206 |
| LG Display Co., Ltd. | 13835 |
198 |
| Murata Manufacturing Co., Ltd. | 24861 |
180 |
| FUJIFILM Corporation | 29714 |
179 |
| Shenzhen Shokz Co., Ltd. | 1146 |
77 |
| Panasonic Corporation | 20012 |
36 |
| Olympus Corporation | 13118 |
35 |
| Cochlear Limited | 1904 |
34 |
| Taiyo Yuden Co., Ltd. | 1976 |
34 |
| Sony Corporation | 30891 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 32139 |
32 |
| USound GmbH | 83 |
32 |
| Konica Minolta Medical & Graphic, Inc. | 739 |
31 |
| Samsung Display Co., Ltd. | 35585 |
28 |
| Seiko Epson Corporation | 19673 |
28 |
| Rohm Co., Ltd. | 6518 |
28 |
| Denso Corporation | 24601 |
24 |
| Google LLC | 42794 |
24 |
| NEC Casio Mobile Communications, Ltd. | 429 |
24 |
| Samsung Electronics Co., Ltd. | 148173 |
23 |
| Other owners | 1581 |