- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit 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: 4427
10-year publication summary
|
349
|
241
|
225
|
291
|
338
|
216
|
149
|
231
|
153
|
48
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18957 |
537 |
| Sumitomo Chemical Company, Limited | 8808 |
264 |
| Panasonic Corporation | 20786 |
231 |
| Konica Minolta, Inc. | 8349 |
202 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
196 |
| Pioneer Corporation | 4843 |
120 |
| Konica Minolta Holdings, Inc. | 1086 |
105 |
| Dai Nippon Printing Co., Ltd. | 3891 |
93 |
| Joled Inc. | 232 |
80 |
| FUJIFILM Corporation | 27102 |
76 |
| Sharp Display Technology Corporation | 390 |
72 |
| Sakai Display Products Corporation | 821 |
70 |
| Samsung Display Co., Ltd. | 30585 |
69 |
| Idemitsu Kosan Co., Ltd. | 3995 |
69 |
| ULVAC, Inc. | 1448 |
61 |
| Tokyo Electron Limited | 11599 |
60 |
| Nitto Denko Corporation | 7879 |
60 |
| Toray Industries, Inc. | 6652 |
59 |
| Japan Display Inc. | 6202 |
58 |
| Merck Patent GmbH | 5909 |
55 |
| Other owners | 1890 |