- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- 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: 350
10-year publication summary
|
30
|
28
|
32
|
30
|
16
|
36
|
21
|
20
|
27
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
73 |
| FUJIFILM Business Innovation Corp. | 7395 |
38 |
| Mitsubishi Chemical Corporation | 4313 |
33 |
| Kyocera Document Solutions Inc. | 5295 |
31 |
| Xerox Corporation | 7503 |
29 |
| Canon Kabushiki Kaisha | 6884 |
29 |
| Fuji Electric Co., Ltd. | 4750 |
28 |
| Ricoh Company, Ltd. | 13266 |
18 |
| Mitsubishi Rayon Co., Ltd. | 1003 |
16 |
| Hewlett-Packard Development Company, L.P. | 28538 |
13 |
| Konica Minolta, Inc. | 8349 |
10 |
| Sharp Corporation | 10015 |
8 |
| Lexmark International, Inc. | 1793 |
8 |
| Fuji Electric Systems Co., Ltd. | 89 |
3 |
| Merck Patent GmbH | 5909 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| LG Chem, Ltd. | 17205 |
1 |
| FUJIFILM Corporation | 27102 |
1 |
| Konica Minolta Business Technologies, Inc. | 1564 |
1 |
| Other owners | 5 |