- All sections
- G - Physics
- G03G - Electrographyelectrophotographymagnetography
- G03G 5/047 - Photoconductive layers characterised by having two or more layers or characterised by their composite structure characterised by the charge-generation layers or charge-transporting layers
Patent holdings for IPC class G03G 5/047
Total number of patents in this class: 358
10-year publication summary
|
32
|
30
|
16
|
36
|
21
|
20
|
28
|
25
|
6
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 43768 |
78 |
| FUJIFILM Business Innovation Corp. | 7916 |
55 |
| Mitsubishi Chemical Corporation | 4721 |
35 |
| Kyocera Document Solutions Inc. | 6242 |
33 |
| Fuji Electric Co., Ltd. | 5469 |
29 |
| Canon Kabushiki Kaisha | 7307 |
28 |
| Xerox Corporation | 4394 |
26 |
| Mitsubishi Rayon Co., Ltd. | 856 |
15 |
| Hewlett-Packard Development Company, L.P. | 25216 |
13 |
| Ricoh Company, Ltd. | 13346 |
12 |
| Konica Minolta, Inc. | 9116 |
10 |
| Sharp Corporation | 10533 |
8 |
| Lexmark International, Inc. | 1541 |
4 |
| Fuji Electric Systems Co., Ltd. | 86 |
3 |
| Merck Patent GmbH | 5725 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3619 |
2 |
| Samsung Electronics Co., Ltd. | 157557 |
1 |
| FUJIFILM Corporation | 30512 |
1 |
| Brother International Corporation | 24 |
1 |
| Takasago International Corporation | 405 |
1 |
| Other owners | 1 |