- 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: 76
10-year publication summary
|
4
|
3
|
4
|
6
|
4
|
5
|
2
|
1
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FEI Company | 1062 |
9 |
| Hitachi High-Technologies Corporation | 1986 |
6 |
| National University Corporation Nara Institute of Science and Technology | 221 |
4 |
| Canon Kabushiki Kaisha | 7387 |
4 |
| Hitachi High-Tech Corporation | 5969 |
4 |
| HORIBA, Ltd. | 892 |
3 |
| Photo Electron Soul Inc. | 35 |
3 |
| Canon Inc. | 44285 |
2 |
| Hitachi, Ltd. | 16206 |
2 |
| Japan Science and Technology Agency | 1212 |
2 |
| AVC Co., Ltd. | 4 |
2 |
| Intelligent Virus Imaging Inc. | 30 |
2 |
| JEOL Ltd. | 626 |
2 |
| Office Tandem L.L.C. | 2 |
2 |
| Oxford Instruments Analytical Limited | 3 |
2 |
| Oxford Instruments NanoTechnology Tools Limited | 142 |
2 |
| Toto Ltd. | 1275 |
2 |
| Hitachi High-Tech Analysis Corporation | 286 |
2 |
| ASML Netherlands B.V. | 8019 |
1 |
| Shimadzu Corporation | 6372 |
1 |
| Other owners | 19 |