- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 33/04 - Sealing arrangements
Patent holdings for IPC class H05B 33/04
Total number of patents in this class: 2134
10-year publication summary
|
207
|
170
|
161
|
198
|
214
|
119
|
68
|
83
|
40
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18957 |
234 |
| Konica Minolta, Inc. | 8349 |
152 |
| Pioneer Corporation | 4843 |
109 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
79 |
| Sumitomo Chemical Company, Limited | 8808 |
78 |
| Samsung Display Co., Ltd. | 30585 |
75 |
| FUJIFILM Corporation | 27102 |
66 |
| Sekisui Chemical Co., Ltd. | 3159 |
63 |
| Panasonic Corporation | 20786 |
58 |
| Lintec Corporation | 1915 |
54 |
| Japan Display Inc. | 6202 |
47 |
| Tohoku Pioneer Corporation | 477 |
40 |
| Mitsui Chemicals, Inc. | 3134 |
37 |
| Nitto Denko Corporation | 7879 |
36 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
34 |
| Konica Minolta Holdings, Inc. | 1086 |
33 |
| Sakai Display Products Corporation | 821 |
33 |
| Sony Semiconductor Solutions Corporation | 8770 |
28 |
| Sharp Corporation | 10015 |
27 |
| Ajinomoto Co., Inc. | 2337 |
27 |
| Other owners | 824 |