- 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 | 13758 |
206 |
LG Display Co., Ltd. | 13389 |
189 |
FUJIFILM Corporation | 29295 |
179 |
Murata Manufacturing Co., Ltd. | 24444 |
175 |
Shenzhen Shokz Co., Ltd. | 1104 |
71 |
Panasonic Corporation | 20142 |
36 |
Olympus Corporation | 13187 |
35 |
Cochlear Limited | 1874 |
34 |
Taiyo Yuden Co., Ltd. | 1928 |
34 |
Sony Corporation | 31107 |
33 |
Panasonic Intellectual Property Management Co., Ltd. | 31201 |
32 |
Konica Minolta Medical & Graphic, Inc. | 792 |
31 |
USound GmbH | 83 |
31 |
Samsung Display Co., Ltd. | 34472 |
27 |
Seiko Epson Corporation | 19316 |
27 |
Rohm Co., Ltd. | 6429 |
27 |
Denso Corporation | 24223 |
24 |
Google LLC | 42004 |
24 |
NEC Casio Mobile Communications, Ltd. | 429 |
24 |
TDK Corporation | 6702 |
23 |
Other owners | 1544 |