- 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: 129
10-year publication summary
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3
|
7
|
5
|
1
|
1
|
3
|
2
|
2
|
2
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 18896 |
34 |
| NEC Corporation | 37135 |
30 |
| Sumitomo Electric Industries, Ltd. | 16412 |
7 |
| Fujitsu Limited | 16860 |
5 |
| Murata Manufacturing Co., Ltd. | 25785 |
4 |
| Hitachi Kokusai Electric Inc. | 830 |
3 |
| Huawei Technologies Co., Ltd. | 123867 |
3 |
| Harman Professional Inc | 87 |
3 |
| Samsung Electronics Co., Ltd. | 158337 |
2 |
| International Business Machines Corporation | 62742 |
2 |
| Kyocera Corporation | 14402 |
2 |
| Qorvo US, Inc. | 2411 |
2 |
| Aselsan Elektronik Sanayi ve Ticaret A.S. | 358 |
2 |
| Qualcomm Incorporated | 92725 |
1 |
| Sony Ericsson Mobile Communications AB | 1371 |
1 |
| Nokia Corporation | 4745 |
1 |
| Hitachi, Ltd. | 16157 |
1 |
| Mitsubishi Electric Corporation | 48146 |
1 |
| Freescale Semiconductor, Inc. | 787 |
1 |
| TDK Corporation | 6902 |
1 |
| Other owners | 23 |