- 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 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
|
4
|
3
|
3
|
7
|
5
|
1
|
1
|
3
|
2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20786 |
35 |
| NEC Corporation | 32703 |
30 |
| Sumitomo Electric Industries, Ltd. | 14131 |
7 |
| Fujitsu Limited | 19265 |
5 |
| Murata Manufacturing Co., Ltd. | 22355 |
4 |
| Hitachi Kokusai Electric Inc. | 1070 |
3 |
| Harman Professional Inc | 86 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
2 |
| Sony Ericsson Mobile Communications AB | 2014 |
2 |
| International Business Machines Corporation | 60644 |
2 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
2 |
| Huawei Technologies Co., Ltd. | 100781 |
2 |
| Kyocera Corporation | 12735 |
2 |
| Astrium Limited | 115 |
2 |
| Aselsan Elektronik Sanayi ve Ticaret A.S. | 338 |
2 |
| Qualcomm Incorporated | 76576 |
1 |
| Nokia Corporation | 6965 |
1 |
| Hitachi, Ltd. | 16452 |
1 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| Freescale Semiconductor, Inc. | 1306 |
1 |
| Other owners | 21 |