- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit 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: 3811
10-year publication summary
246
|
212
|
261
|
308
|
396
|
304
|
336
|
310
|
199
|
51
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Nitto Denko Corporation | 7879 |
347 |
Sharp Kabushiki Kaisha | 18957 |
338 |
FUJIFILM Corporation | 27102 |
309 |
Semiconductor Energy Laboratory Co., Ltd. | 10902 |
273 |
Sumitomo Chemical Company, Limited | 8808 |
261 |
Konica Minolta, Inc. | 8349 |
248 |
Pioneer Corporation | 4843 |
109 |
Zeon Corporation | 3854 |
93 |
Japan Display Inc. | 6202 |
91 |
Sony Semiconductor Solutions Corporation | 8770 |
83 |
Panasonic Corporation | 20786 |
80 |
Nippon Electric Glass Co., Ltd. | 2299 |
71 |
Dai Nippon Printing Co., Ltd. | 3891 |
62 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
55 |
Asahi Glass Company, Limited | 2985 |
48 |
Sony Corporation | 32931 |
47 |
Konica Minolta Holdings, Inc. | 1086 |
46 |
Toray Industries, Inc. | 6652 |
41 |
Showa Denko K.K. | 2539 |
35 |
Canon Kabushiki Kaisha | 6884 |
29 |
Other owners | 1145 |