- 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: 4338
10-year publication summary
|
241
|
224
|
290
|
336
|
215
|
149
|
231
|
153
|
93
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18716 |
532 |
| Sumitomo Chemical Company, Limited | 9047 |
256 |
| Panasonic Corporation | 20042 |
230 |
| Konica Minolta, Inc. | 8789 |
202 |
| Semiconductor Energy Laboratory Co., Ltd. | 11481 |
196 |
| Sharp Display Technology Corporation | 913 |
109 |
| Pioneer Corporation | 4294 |
108 |
| Konica Minolta Holdings, Inc. | 900 |
92 |
| Dai Nippon Printing Co., Ltd. | 4118 |
92 |
| Joled Inc. | 211 |
78 |
| FUJIFILM Corporation | 29586 |
75 |
| Samsung Display Co., Ltd. | 35269 |
69 |
| Sakai Display Products Corporation | 789 |
69 |
| Nitto Denko Corporation | 8295 |
60 |
| Idemitsu Kosan Co., Ltd. | 4220 |
59 |
| Tokyo Electron Limited | 12899 |
58 |
| Toray Industries, Inc. | 6978 |
58 |
| Japan Display Inc. | 7020 |
58 |
| Merck Patent GmbH | 5768 |
55 |
| ULVAC, Inc. | 1378 |
52 |
| Other owners | 1830 |