- All sections
- B - Performing operationstransporting
- B41J - Typewritersselective printing mechanisms, i.e. mechanisms printing otherwise than from a formecorrection of typographical errors
- B41J 2/055 - Devices for absorbing or preventing back-pressure
Patent holdings for IPC class B41J 2/055
Total number of patents in this class: 315
10-year publication summary
|
9
|
19
|
10
|
23
|
8
|
2
|
7
|
7
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19786 |
52 |
| Konica Minolta, Inc. | 8956 |
36 |
| Kyocera Corporation | 14137 |
26 |
| Ricoh Company, Ltd. | 13362 |
24 |
| Konica Minolta Holdings, Inc. | 856 |
23 |
| Brother Industries, Ltd. | 12944 |
19 |
| Panasonic Corporation | 19901 |
18 |
| Hewlett-Packard Development Company, L.P. | 25482 |
14 |
| Sharp Kabushiki Kaisha | 18618 |
12 |
| FUJIFILM Corporation | 30012 |
10 |
| FUJIFILM Dimatix, Inc. | 266 |
8 |
| Konica Minolta Ij Technologies, Inc. | 56 |
8 |
| Canon Kabushiki Kaisha | 7205 |
8 |
| SII Printek Inc. | 148 |
6 |
| NGK Insulators, Ltd. | 5185 |
5 |
| Mimaki Engineering Co., Ltd. | 880 |
3 |
| ULVAC, Inc. | 1371 |
3 |
| Illinois Tool Works Inc. | 11645 |
2 |
| Canon Inc. | 41507 |
2 |
| Eastman Kodak Company | 2760 |
2 |
| Other owners | 34 |