- 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: 64
10-year publication summary
|
3
|
7
|
7
|
2
|
6
|
3
|
3
|
3
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Semiconductor Solutions Corporation | 11033 |
6 |
| Skyworks Solutions, Inc. | 3850 |
5 |
| Murata Manufacturing Co., Ltd. | 25241 |
4 |
| NEC Corporation | 36455 |
2 |
| Panasonic Corporation | 19882 |
2 |
| Fujitsu Limited | 17373 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 32968 |
2 |
| Analog Devices, Inc. | 3352 |
2 |
| Socionext Inc. | 1584 |
2 |
| Diodes Zetex Semiconductors Limited | 5 |
2 |
| Microsemi Corporation | 112 |
2 |
| The Regents of the University of California | 20366 |
1 |
| Toshiba Corporation | 12536 |
1 |
| Hitachi, Ltd. | 15803 |
1 |
| Hitachi Automotive Systems, Ltd. | 3954 |
1 |
| Renesas Electronics Corporation | 5894 |
1 |
| Ricoh Company, Ltd. | 13345 |
1 |
| Denso Corporation | 24991 |
1 |
| Mitsubishi Electric Corporation | 47338 |
1 |
| Sanyo Electric Co., Ltd. | 3572 |
1 |
| Other owners | 24 |