- All sections
- G - Physics
- G21K - Techniques for handling particles or ionising radiation not otherwise provided forirradiation devicesgamma ray or x-ray microscopes
- G21K 4/00 - Conversion screens for the conversion of the spatial distribution of particles or ionising radiation into visible images, e.g. fluoroscopic screens
Patent holdings for IPC class G21K 4/00
Total number of patents in this class: 563
10-year publication summary
|
44
|
44
|
34
|
26
|
29
|
12
|
16
|
13
|
10
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Konica Minolta Medical & Graphic, Inc. | 571 |
75 |
| Hamamatsu Photonics K.K. | 4703 |
63 |
| Toray Industries, Inc. | 7145 |
36 |
| Toshiba Materials Co., Ltd. | 560 |
23 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6162 |
22 |
| FUJIFILM Corporation | 30653 |
20 |
| Konica Minolta, Inc. | 9165 |
15 |
| Canon Kabushiki Kaisha | 7373 |
12 |
| Hitachi Metals, Ltd. | 1823 |
10 |
| Luxium Solutions, LLC | 120 |
10 |
| Koninklijke Philips N.V. | 25999 |
9 |
| Siemens Medical Solutions USA, Inc. | 1469 |
9 |
| University of Tennessee Research Foundation | 766 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11128 |
8 |
| Mitsubishi Chemical Corporation | 4742 |
8 |
| Toshiba Electron Tubes & Devices Co., Ltd. | 45 |
8 |
| Carestream Dental Technology Topco Limited | 67 |
8 |
| Tohoku University | 3031 |
6 |
| Canon Electron Tubes & Devices Co., Ltd. | 167 |
5 |
| The Regents of the University of California | 20868 |
4 |
| Other owners | 203 |