- All sections
- B - Performing operations; transporting
- B41J - Typewriters; selective printing mechanisms, i.e. mechanisms printing otherwise than from a forme; correction of typographical errors
- B41J 31/00 - Ink ribbons; Renovating or testing ink ribbons
Patent holdings for IPC class B41J 31/00
Total number of patents in this class: 66
10-year publication summary
|
2
|
5
|
7
|
7
|
4
|
2
|
3
|
7
|
5
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 3891 |
17 |
| Brother Kogyo Kabushikikaisha | 1709 |
8 |
| Brother Industries, Ltd. | 13000 |
6 |
| Armor | 58 |
4 |
| General Co., Ltd. | 15 |
3 |
| Canon Kabushiki Kaisha | 6884 |
3 |
| Illinois Tool Works Inc. | 11152 |
2 |
| Canon Inc. | 36841 |
2 |
| Hand held Products, Inc. | 1227 |
2 |
| Mimaki Engineering Co., Ltd. | 799 |
2 |
| Entrust Corporation | 242 |
2 |
| Xerox Corporation | 7503 |
1 |
| Seiko Epson Corporation | 18724 |
1 |
| FUJIFILM Corporation | 27102 |
1 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| Toshiba TEC Corporation | 3877 |
1 |
| Oki Electric Industry Co., Ltd. | 1652 |
1 |
| Toray Industries, Inc. | 6652 |
1 |
| DS Global | 40 |
1 |
| Ewha University-industry Collaboration Foundation | 617 |
1 |
| Other owners | 6 |