- All sections
- B - Performing operationstransporting
- B41J - Typewritersselective printing mechanisms, i.e. mechanisms printing otherwise than from a formecorrection of typographical errors
- B41J 31/00 - Ink ribbonsRenovating or testing ink ribbons
Patent holdings for IPC class B41J 31/00
Total number of patents in this class: 64
10-year publication summary
|
5
|
7
|
7
|
4
|
2
|
3
|
7
|
6
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 4113 |
12 |
| Brother Kogyo Kabushikikaisha | 1774 |
8 |
| Brother Industries, Ltd. | 12959 |
6 |
| Armor | 61 |
5 |
| General Co., Ltd. | 18 |
3 |
| Canon Kabushiki Kaisha | 7069 |
3 |
| Entrust Corporation | 276 |
3 |
| Illinois Tool Works Inc. | 11494 |
2 |
| Canon Inc. | 40352 |
2 |
| Hand held Products, Inc. | 1262 |
2 |
| Mimaki Engineering Co., Ltd. | 856 |
2 |
| Xerox Corporation | 6986 |
1 |
| Seiko Epson Corporation | 19510 |
1 |
| FUJIFILM Corporation | 29543 |
1 |
| Mitsubishi Electric Corporation | 46397 |
1 |
| Toshiba TEC Corporation | 3810 |
1 |
| Oki Electric Industry Co., Ltd. | 1589 |
1 |
| Toray Industries, Inc. | 6976 |
1 |
| DS Global | 41 |
1 |
| Ewha University-industry Collaboration Foundation | 733 |
1 |
| Other owners | 7 |