- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
Patent holdings for IPC class H05B 33/10
Total number of patents in this class: 4331
10-year publication summary
|
241
|
224
|
290
|
336
|
215
|
149
|
231
|
153
|
93
|
40
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18646 |
532 |
| Sumitomo Chemical Company, Limited | 9105 |
256 |
| Panasonic Corporation | 19976 |
230 |
| Konica Minolta, Inc. | 8866 |
202 |
| Semiconductor Energy Laboratory Co., Ltd. | 11534 |
196 |
| Sharp Display Technology Corporation | 968 |
116 |
| Pioneer Corporation | 4175 |
107 |
| Dai Nippon Printing Co., Ltd. | 4139 |
92 |
| Konica Minolta Holdings, Inc. | 881 |
91 |
| Joled Inc. | 211 |
78 |
| FUJIFILM Corporation | 29775 |
75 |
| Sakai Display Products Corporation | 789 |
69 |
| Samsung Display Co., Ltd. | 36065 |
68 |
| Nitto Denko Corporation | 8349 |
60 |
| Idemitsu Kosan Co., Ltd. | 4223 |
58 |
| Toray Industries, Inc. | 7006 |
58 |
| Tokyo Electron Limited | 13083 |
57 |
| Merck Patent GmbH | 5758 |
55 |
| Japan Display Inc. | 2773 |
50 |
| ULVAC, Inc. | 1374 |
50 |
| Other owners | 1831 |