- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- G03G 9/09 - Colouring agents for toner particles
Patent holdings for IPC class G03G 9/09
Total number of patents in this class: 833
10-year publication summary
|
70
|
120
|
110
|
60
|
75
|
47
|
51
|
31
|
36
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 38016 |
120 |
| FUJIFILM Business Innovation Corp. | 7398 |
111 |
| Xerox Corporation | 7076 |
74 |
| Ricoh Company, Ltd. | 13202 |
64 |
| Canon Kabushiki Kaisha | 6935 |
50 |
| Zeon Corporation | 3986 |
47 |
| Toshiba TEC Corporation | 3686 |
45 |
| Konica Minolta, Inc. | 8510 |
37 |
| Konica Minolta Business Technologies, Inc. | 1467 |
21 |
| Hewlett-Packard Development Company, L.P. | 27484 |
20 |
| Eastman Kodak Company | 3045 |
20 |
| Toshiba Corporation | 12022 |
19 |
| Oki Electric Industry Co., Ltd. | 1604 |
19 |
| Kao Corporation | 4898 |
11 |
| Mitsubishi Chemical Corporation | 4430 |
11 |
| FUJIFILM Corporation | 28467 |
9 |
| Kyocera Document Solutions Inc. | 5314 |
8 |
| Lexmark International, Inc. | 1704 |
7 |
| Cabot Corporation | 569 |
7 |
| TIGER Coatings GmbH & Co. KG | 109 |
6 |
| Other owners | 127 |