- 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: 2713
10-year publication summary
|
164
|
177
|
172
|
162
|
187
|
292
|
204
|
73
|
25
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18495 |
353 |
| Semiconductor Energy Laboratory Co., Ltd. | 11873 |
336 |
| Panasonic Corporation | 18809 |
172 |
| Idemitsu Kosan Co., Ltd. | 4263 |
106 |
| Pioneer Corporation | 3765 |
103 |
| Toray Industries, Inc. | 7143 |
100 |
| Sumitomo Chemical Company, Limited | 8969 |
99 |
| Sony Semiconductor Solutions Corporation | 11764 |
95 |
| Sharp Display Technology Corporation | 1258 |
94 |
| Konica Minolta, Inc. | 9159 |
78 |
| Sony Corporation | 30097 |
76 |
| FUJIFILM Corporation | 30628 |
72 |
| Japan Display Inc. | 3018 |
66 |
| Joled Inc. | 211 |
61 |
| Canon Kabushiki Kaisha | 7369 |
46 |
| Mitsubishi Chemical Corporation | 4738 |
40 |
| Dai Nippon Printing Co., Ltd. | 4254 |
30 |
| Tohoku Pioneer Corporation | 462 |
30 |
| Asahi Glass Company, Limited | 2605 |
30 |
| Sony Group Corporation | 15879 |
29 |
| Other owners | 697 |