- 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: 347
10-year publication summary
|
28
|
32
|
30
|
16
|
36
|
21
|
20
|
27
|
25
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 39365 |
77 |
| FUJIFILM Business Innovation Corp. | 7570 |
40 |
| Mitsubishi Chemical Corporation | 4480 |
34 |
| Kyocera Document Solutions Inc. | 5500 |
31 |
| Canon Kabushiki Kaisha | 7041 |
30 |
| Fuji Electric Co., Ltd. | 5098 |
29 |
| Xerox Corporation | 7028 |
27 |
| Ricoh Company, Ltd. | 13215 |
15 |
| Mitsubishi Rayon Co., Ltd. | 920 |
15 |
| Hewlett-Packard Development Company, L.P. | 25972 |
13 |
| Konica Minolta, Inc. | 8659 |
10 |
| Sharp Corporation | 10292 |
7 |
| Lexmark International, Inc. | 1682 |
6 |
| Fuji Electric Systems Co., Ltd. | 87 |
3 |
| Merck Patent GmbH | 5840 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3431 |
2 |
| Samsung Electronics Co., Ltd. | 143812 |
1 |
| FUJIFILM Corporation | 29208 |
1 |
| Konica Minolta Business Technologies, Inc. | 1440 |
1 |
| Brother International Corporation | 23 |
1 |
| Other owners | 2 |