- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 33/12 - Light sources with substantially two-dimensional radiating surfaces
Patent holdings for IPC class H05B 33/12
Total number of patents in this class: 2744
10-year publication summary
|
160
|
164
|
177
|
172
|
162
|
187
|
292
|
202
|
73
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18692 |
356 |
| Semiconductor Energy Laboratory Co., Ltd. | 11487 |
337 |
| Panasonic Corporation | 20018 |
173 |
| Idemitsu Kosan Co., Ltd. | 4239 |
118 |
| Pioneer Corporation | 4246 |
104 |
| Sumitomo Chemical Company, Limited | 9092 |
102 |
| Toray Industries, Inc. | 7006 |
99 |
| Sony Semiconductor Solutions Corporation | 10714 |
95 |
| Sharp Display Technology Corporation | 937 |
84 |
| Sony Corporation | 30901 |
78 |
| Konica Minolta, Inc. | 8818 |
78 |
| FUJIFILM Corporation | 29713 |
72 |
| Japan Display Inc. | 2745 |
66 |
| Joled Inc. | 211 |
61 |
| Canon Kabushiki Kaisha | 7108 |
47 |
| Mitsubishi Chemical Corporation | 4585 |
40 |
| Asahi Glass Company, Limited | 2756 |
31 |
| Dai Nippon Printing Co., Ltd. | 4126 |
30 |
| Tohoku Pioneer Corporation | 474 |
30 |
| Sony Group Corporation | 14321 |
29 |
| Other owners | 714 |