- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 1/06 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency wavesModifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifiers acting also as modulators
Patent holdings for IPC class H03F 1/06
Total number of patents in this class: 128
10-year publication summary
|
3
|
7
|
5
|
1
|
1
|
3
|
2
|
2
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 19060 |
34 |
| NEC Corporation | 36934 |
30 |
| Sumitomo Electric Industries, Ltd. | 16305 |
7 |
| Fujitsu Limited | 16862 |
5 |
| Murata Manufacturing Co., Ltd. | 25722 |
4 |
| Hitachi Kokusai Electric Inc. | 836 |
3 |
| Huawei Technologies Co., Ltd. | 123282 |
3 |
| Harman Professional Inc | 87 |
3 |
| Samsung Electronics Co., Ltd. | 157557 |
2 |
| International Business Machines Corporation | 62621 |
2 |
| Kyocera Corporation | 14335 |
2 |
| Qorvo US, Inc. | 2394 |
2 |
| Aselsan Elektronik Sanayi ve Ticaret A.S. | 358 |
2 |
| Qualcomm Incorporated | 91997 |
1 |
| Sony Ericsson Mobile Communications AB | 1392 |
1 |
| Nokia Corporation | 4790 |
1 |
| Hitachi, Ltd. | 16071 |
1 |
| Mitsubishi Electric Corporation | 47971 |
1 |
| Freescale Semiconductor, Inc. | 797 |
1 |
| TDK Corporation | 6855 |
1 |
| Other owners | 22 |