- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit 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: 4409
10-year publication summary
|
241
|
225
|
291
|
338
|
216
|
149
|
231
|
153
|
93
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18873 |
534 |
| Sumitomo Chemical Company, Limited | 8979 |
261 |
| Panasonic Corporation | 20322 |
230 |
| Konica Minolta, Inc. | 8530 |
202 |
| Semiconductor Energy Laboratory Co., Ltd. | 11080 |
195 |
| Pioneer Corporation | 4636 |
117 |
| Konica Minolta Holdings, Inc. | 1010 |
105 |
| Dai Nippon Printing Co., Ltd. | 3973 |
93 |
| Sharp Display Technology Corporation | 683 |
91 |
| Joled Inc. | 232 |
80 |
| FUJIFILM Corporation | 28555 |
75 |
| Samsung Display Co., Ltd. | 32745 |
69 |
| Sakai Display Products Corporation | 790 |
69 |
| Idemitsu Kosan Co., Ltd. | 4103 |
63 |
| Tokyo Electron Limited | 12111 |
60 |
| Nitto Denko Corporation | 8085 |
60 |
| Toray Industries, Inc. | 6848 |
58 |
| Japan Display Inc. | 6774 |
58 |
| ULVAC, Inc. | 1404 |
55 |
| Merck Patent GmbH | 5845 |
54 |
| Other owners | 1880 |