- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/343 - DC amplifiers in which all stages are DC-coupled with semiconductor devices only
Patent holdings for IPC class H03F 3/343
Total number of patents in this class: 65
10-year publication summary
|
3
|
7
|
7
|
2
|
6
|
3
|
3
|
3
|
4
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Semiconductor Solutions Corporation | 11858 |
6 |
| Skyworks Solutions, Inc. | 3986 |
5 |
| Murata Manufacturing Co., Ltd. | 25917 |
4 |
| Panasonic Corporation | 18716 |
2 |
| Fujitsu Limited | 16833 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 34471 |
2 |
| Analog Devices, Inc. | 3318 |
2 |
| Socionext Inc. | 1614 |
2 |
| Diodes Zetex Semiconductors Limited | 5 |
2 |
| Microsemi Corporation | 111 |
2 |
| The Regents of the University of California | 20902 |
1 |
| NEC Corporation | 37395 |
1 |
| Toshiba Corporation | 12726 |
1 |
| Hitachi, Ltd. | 16206 |
1 |
| Hitachi Automotive Systems, Ltd. | 3954 |
1 |
| Renesas Electronics Corporation | 5855 |
1 |
| Ricoh Company, Ltd. | 13386 |
1 |
| Denso Corporation | 25746 |
1 |
| Mitsubishi Electric Corporation | 48351 |
1 |
| Sanyo Electric Co., Ltd. | 3388 |
1 |
| Other owners | 26 |