- 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: 2636
10-year publication summary
|
242
|
228
|
168
|
189
|
210
|
241
|
216
|
196
|
241
|
57
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kyocera Corporation | 12735 |
212 |
| FUJIFILM Corporation | 27102 |
178 |
| Murata Manufacturing Co., Ltd. | 22355 |
167 |
| LG Display Co., Ltd. | 11907 |
145 |
| Shenzhen Shokz Co., Ltd. | 629 |
53 |
| Olympus Corporation | 13667 |
39 |
| Panasonic Corporation | 20786 |
36 |
| Taiyo Yuden Co., Ltd. | 1809 |
34 |
| Sony Corporation | 32931 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
32 |
| Konica Minolta Medical & Graphic, Inc. | 986 |
31 |
| USound GmbH | 79 |
30 |
| Seiko Epson Corporation | 18724 |
29 |
| Cochlear Limited | 1619 |
27 |
| Samsung Display Co., Ltd. | 30585 |
25 |
| Denso Corporation | 23338 |
25 |
| Google LLC | 38759 |
24 |
| NEC Casio Mobile Communications, Ltd. | 431 |
24 |
| Samsung Electronics Co., Ltd. | 131630 |
23 |
| Robert Bosch GmbH | 40953 |
22 |
| Other owners | 1447 |