- All sections
- H - Electricity
- H04B - Transmission
- H04B 1/59 - Responders; Transponders
Patent holdings for IPC class H04B 1/59
Total number of patents in this class: 732
10-year publication summary
|
36
|
40
|
49
|
47
|
41
|
42
|
42
|
23
|
14
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brother Kogyo Kabushikikaisha | 1709 |
51 |
| Sony Corporation | 32931 |
41 |
| Panasonic Corporation | 20786 |
23 |
| Fujitsu Limited | 19265 |
22 |
| Murata Manufacturing Co., Ltd. | 22355 |
21 |
| Omron Corporation | 6968 |
21 |
| NEC Corporation | 32703 |
18 |
| Kyocera Corporation | 12735 |
14 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
14 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
12 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
11 |
| Mitsubishi Electric Corporation | 43934 |
11 |
| Tokyo Institute of Technology | 1367 |
9 |
| Canon Kabushiki Kaisha | 6884 |
8 |
| Hitachi, Ltd. | 16452 |
7 |
| Denso Corporation | 23338 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
7 |
| Sharp Kabushiki Kaisha | 18957 |
6 |
| The Boeing Company | 19843 |
5 |
| Ricoh Company, Ltd. | 13266 |
5 |
| Other owners | 419 |