- 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: 589
10-year publication summary
|
56
|
43
|
43
|
33
|
26
|
29
|
11
|
16
|
13
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Konica Minolta Medical & Graphic, Inc. | 763 |
90 |
| Hamamatsu Photonics K.K. | 4434 |
62 |
| Toray Industries, Inc. | 6966 |
35 |
| Toshiba Materials Co., Ltd. | 665 |
23 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6271 |
23 |
| FUJIFILM Corporation | 29489 |
20 |
| Konica Minolta, Inc. | 8766 |
15 |
| Canon Kabushiki Kaisha | 7066 |
12 |
| Hitachi Metals, Ltd. | 1976 |
10 |
| Luxium Solutions, LLC | 88 |
10 |
| Koninklijke Philips N.V. | 24810 |
9 |
| Siemens Medical Solutions USA, Inc. | 1519 |
9 |
| Toshiba Electron Tubes & Devices Co., Ltd. | 52 |
9 |
| University of Tennessee Research Foundation | 753 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10930 |
8 |
| Mitsubishi Chemical Corporation | 4528 |
8 |
| Carestream Dental Technology Topco Limited | 70 |
8 |
| Toshiba Corporation | 12383 |
6 |
| Carestream Health, Inc. | 697 |
6 |
| Tohoku University | 2799 |
6 |
| Other owners | 211 |