- 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: 4280
10-year publication summary
|
225
|
291
|
339
|
217
|
150
|
231
|
156
|
95
|
45
|
46
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18468 |
538 |
| Sumitomo Chemical Company, Limited | 8995 |
251 |
| Panasonic Corporation | 18572 |
230 |
| Konica Minolta, Inc. | 9208 |
202 |
| Semiconductor Energy Laboratory Co., Ltd. | 11922 |
194 |
| Sharp Display Technology Corporation | 1287 |
136 |
| Pioneer Corporation | 3721 |
98 |
| Dai Nippon Printing Co., Ltd. | 4282 |
88 |
| Konica Minolta Holdings, Inc. | 754 |
80 |
| Joled Inc. | 211 |
78 |
| FUJIFILM Corporation | 30849 |
75 |
| Sakai Display Products Corporation | 782 |
69 |
| Samsung Display Co., Ltd. | 39307 |
67 |
| Nitto Denko Corporation | 8642 |
60 |
| Toray Industries, Inc. | 7167 |
58 |
| Merck Patent GmbH | 5761 |
54 |
| Idemitsu Kosan Co., Ltd. | 4299 |
52 |
| Japan Display Inc. | 3061 |
50 |
| Mitsubishi Chemical Corporation | 4777 |
49 |
| ULVAC, Inc. | 1335 |
48 |
| Other owners | 1803 |