- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 28/14 - Dies
Patent holdings for IPC class B21D 28/14
Total number of patents in this class: 160
10-year publication summary
|
10
|
14
|
18
|
21
|
14
|
13
|
16
|
14
|
14
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6238 |
20 |
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 548 |
10 |
| Oiles Corporation | 513 |
7 |
| JFE Steel Corporation | 6840 |
6 |
| Mitsui High-tec, Inc. | 265 |
5 |
| Honda Motor Co., Ltd. | 25251 |
3 |
| Toyota Motor Corporation | 32116 |
3 |
| G-Tekt Corporation | 42 |
3 |
| Kuroda Precision Industries Ltd. | 112 |
3 |
| Nidec Corporation | 2662 |
3 |
| Toyota Boshoku Kabushiki Kaisha | 1402 |
3 |
| Wuxi Micro Research Co., Ltd | 16 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 31375 |
2 |
| NTN Corporation | 4976 |
2 |
| Amada Holdings Co., Ltd. | 278 |
2 |
| Corrada S.p.A. | 21 |
2 |
| Hoden Seimitsu Kako Kenkyusho Co., Ltd. | 40 |
2 |
| Magna International Inc. | 1226 |
2 |
| Metal Industries Research & Development Centre | 222 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
2 |
| Other owners | 75 |