- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 33/26 - Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
Patent holdings for IPC class H05B 33/26
Total number of patents in this class: 1181
10-year publication summary
|
65
|
72
|
63
|
49
|
56
|
68
|
51
|
9
|
7
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18495 |
114 |
| Panasonic Corporation | 18809 |
101 |
| Pioneer Corporation | 3765 |
97 |
| Semiconductor Energy Laboratory Co., Ltd. | 11873 |
96 |
| Konica Minolta, Inc. | 9159 |
88 |
| Sumitomo Chemical Company, Limited | 8969 |
46 |
| Tohoku Pioneer Corporation | 462 |
32 |
| Sony Semiconductor Solutions Corporation | 11764 |
31 |
| Joled Inc. | 211 |
26 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
22 |
| Sharp Display Technology Corporation | 1258 |
21 |
| Sony Corporation | 30097 |
20 |
| Konica Minolta Holdings, Inc. | 773 |
20 |
| Japan Display Inc. | 3018 |
20 |
| FUJIFILM Corporation | 30628 |
16 |
| Showa Denko K.K. | 2061 |
16 |
| Samsung Display Co., Ltd. | 38914 |
14 |
| Mitsubishi Materials Corporation | 2481 |
14 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6165 |
14 |
| Idemitsu Kosan Co., Ltd. | 4263 |
13 |
| Other owners | 360 |