- 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: 59
10-year publication summary
|
5
|
4
|
3
|
7
|
7
|
2
|
6
|
2
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Semiconductor Solutions Corporation | 8770 |
6 |
| Murata Manufacturing Co., Ltd. | 22355 |
4 |
| NEC Corporation | 32703 |
2 |
| Panasonic Corporation | 20786 |
2 |
| Fujitsu Limited | 19265 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
2 |
| Socionext Inc. | 1575 |
2 |
| Diodes Zetex Semiconductors Limited | 5 |
2 |
| Microsemi Corporation | 125 |
2 |
| Skyworks Solutions, Inc. | 3450 |
2 |
| The Regents of the University of California | 18943 |
1 |
| Toshiba Corporation | 12017 |
1 |
| Hitachi, Ltd. | 16452 |
1 |
| Hitachi Automotive Systems, Ltd. | 3970 |
1 |
| Renesas Electronics Corporation | 6305 |
1 |
| Ricoh Company, Ltd. | 13266 |
1 |
| Denso Corporation | 23338 |
1 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| Sanyo Electric Co., Ltd. | 3926 |
1 |
| Olympus Corporation | 13667 |
1 |
| Other owners | 23 |