- 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: 1191
10-year publication summary
|
65
|
72
|
63
|
49
|
56
|
68
|
50
|
9
|
7
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18608 |
113 |
| Panasonic Corporation | 19577 |
102 |
| Pioneer Corporation | 3844 |
97 |
| Semiconductor Energy Laboratory Co., Ltd. | 11688 |
96 |
| Konica Minolta, Inc. | 9032 |
88 |
| Sumitomo Chemical Company, Limited | 9055 |
48 |
| Tohoku Pioneer Corporation | 469 |
32 |
| Sony Semiconductor Solutions Corporation | 11253 |
31 |
| Joled Inc. | 211 |
26 |
| Panasonic Intellectual Property Management Co., Ltd. | 33602 |
22 |
| Sony Corporation | 30388 |
21 |
| Konica Minolta Holdings, Inc. | 819 |
21 |
| Sharp Display Technology Corporation | 1141 |
21 |
| Japan Display Inc. | 2909 |
20 |
| FUJIFILM Corporation | 30277 |
16 |
| Showa Denko K.K. | 2098 |
16 |
| Samsung Display Co., Ltd. | 37933 |
14 |
| Mitsubishi Materials Corporation | 2465 |
14 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6207 |
14 |
| Idemitsu Kosan Co., Ltd. | 4219 |
13 |
| Other owners | 366 |