- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 5/50 - Means forming part of the tube or lamp for the purpose of providing electrical connection to it
Patent holdings for IPC class H01J 5/50
Total number of patents in this class: 104
10-year publication summary
|
9
|
1
|
2
|
2
|
2
|
2
|
2
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20786 |
13 |
| Sharp Kabushiki Kaisha | 18957 |
11 |
| Koninklijke Philips Electronics N.V. | 13133 |
6 |
| Toshiba Lighting & Technology Corporation | 340 |
5 |
| Nikon Corporation | 7162 |
4 |
| Photoscience Japan Corporation | 21 |
4 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
3 |
| Japan Aviation Electronics Industry, Limited | 1585 |
3 |
| Philips Intellectual Property & Standards GmbH | 2395 |
3 |
| Au Optronics Corporation | 3880 |
2 |
| OSRAM GmbH | 2442 |
2 |
| OSRAM SYLVANIA Inc. | 742 |
2 |
| Osram AG | 305 |
2 |
| Hoya Candeo Optronics Corporation | 42 |
2 |
| Trojan Technologies Inc. | 60 |
2 |
| Ushio Denki Kabushiki Kaisha | 1088 |
2 |
| General Electric Company | 18133 |
1 |
| Canon Inc. | 36841 |
1 |
| Matsushita Electric Works, Ltd. | 229 |
1 |
| Sumitomo Electric Industries, Ltd. | 14131 |
1 |
| Other owners | 34 |