- All sections
- G - Physics
- G03G - Electrographyelectrophotographymagnetography
- G03G 9/107 - Developers with toner particles characterised by carrier particles having magnetic components
Patent holdings for IPC class G03G 9/107
Total number of patents in this class: 338
10-year publication summary
|
29
|
30
|
29
|
18
|
13
|
28
|
18
|
12
|
8
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Powdertech Co., Ltd. | 138 |
59 |
| Canon Inc. | 42633 |
58 |
| Dowa Electronics Materials Co., Ltd. | 636 |
48 |
| Dowa IP Creation Co., Ltd. | 58 |
48 |
| FUJIFILM Business Innovation Corp. | 7853 |
45 |
| Ricoh Company, Ltd. | 13309 |
25 |
| Kyocera Document Solutions Inc. | 6134 |
11 |
| Toda Kogyo Corporation | 342 |
8 |
| Konica Minolta, Inc. | 9056 |
7 |
| Canon Kabushiki Kaisha | 7258 |
5 |
| Sharp Corporation | 10484 |
4 |
| Lexmark International, Inc. | 1562 |
3 |
| Toshiba TEC Corporation | 3886 |
2 |
| Xerox Corporation | 4703 |
1 |
| Toshiba Corporation | 12687 |
1 |
| Hewlett-Packard Development Company, L.P. | 25317 |
1 |
| Eastman Kodak Company | 2652 |
1 |
| Konica Minolta Business Technologies, Inc. | 1339 |
1 |
| Hodogaya Chemical Co., Ltd. | 428 |
1 |
| Hubei Dinglong Chemical Co., Ltd. | 4 |
1 |
| Other owners | 8 |