- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 33/02 - Electroluminescent light sources Details
Patent holdings for IPC class H05B 33/02
Total number of patents in this class: 3788
10-year publication summary
|
212
|
261
|
308
|
398
|
304
|
338
|
310
|
201
|
77
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nitto Denko Corporation | 8196 |
343 |
| Sharp Kabushiki Kaisha | 18787 |
337 |
| FUJIFILM Corporation | 29251 |
308 |
| Semiconductor Energy Laboratory Co., Ltd. | 11371 |
276 |
| Sumitomo Chemical Company, Limited | 9018 |
257 |
| Konica Minolta, Inc. | 8681 |
248 |
| Pioneer Corporation | 4396 |
109 |
| Japan Display Inc. | 7074 |
91 |
| Zeon Corporation | 4075 |
89 |
| Sony Semiconductor Solutions Corporation | 10315 |
86 |
| Panasonic Corporation | 20166 |
80 |
| Nippon Electric Glass Co., Ltd. | 2450 |
71 |
| Dai Nippon Printing Co., Ltd. | 4061 |
61 |
| Panasonic Intellectual Property Management Co., Ltd. | 31022 |
55 |
| Sony Corporation | 31138 |
47 |
| Asahi Glass Company, Limited | 2807 |
47 |
| Konica Minolta Holdings, Inc. | 933 |
43 |
| Toray Industries, Inc. | 6906 |
41 |
| Showa Denko K.K. | 2269 |
35 |
| Canon Kabushiki Kaisha | 7046 |
30 |
| Other owners | 1134 |