- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 37/252 - Tubes for spot-analysing by electron or ion beamsMicroanalysers
Patent holdings for IPC class H01J 37/252
Total number of patents in this class: 78
10-year publication summary
|
4
|
3
|
4
|
6
|
4
|
5
|
2
|
1
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FEI Company | 1042 |
9 |
| Hitachi High-Technologies Corporation | 1992 |
6 |
| Intelligent Virus Imaging Inc. | 31 |
4 |
| National University Corporation Nara Institute of Science and Technology | 227 |
4 |
| Canon Kabushiki Kaisha | 7228 |
4 |
| Hitachi High-Tech Corporation | 5660 |
4 |
| Photo Electron Soul Inc. | 34 |
3 |
| Canon Inc. | 42342 |
2 |
| Hitachi, Ltd. | 15904 |
2 |
| Japan Science and Technology Agency | 1234 |
2 |
| AVC Co., Ltd. | 4 |
2 |
| HORIBA, Ltd. | 857 |
2 |
| JEOL Ltd. | 616 |
2 |
| Office Tandem L.L.C. | 2 |
2 |
| Oxford Instruments Analytical Limited | 4 |
2 |
| Oxford Instruments NanoTechnology Tools Limited | 143 |
2 |
| Toto Ltd. | 1233 |
2 |
| Hitachi High-Tech Analysis Corporation | 286 |
2 |
| ASML Netherlands B.V. | 7749 |
1 |
| Shimadzu Corporation | 6306 |
1 |
| Other owners | 20 |