- 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: 156
10-year publication summary
|
10
|
14
|
18
|
21
|
14
|
13
|
16
|
14
|
14
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6097 |
18 |
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 554 |
10 |
| Oiles Corporation | 510 |
7 |
| JFE Steel Corporation | 6684 |
6 |
| Mitsui High-tec, Inc. | 264 |
5 |
| Honda Motor Co., Ltd. | 25109 |
3 |
| Toyota Motor Corporation | 30988 |
3 |
| Kuroda Precision Industries Ltd. | 110 |
3 |
| Nidec Corporation | 2626 |
3 |
| Toyota Boshoku Kabushiki Kaisha | 1379 |
3 |
| Wuxi Micro Research Co., Ltd | 16 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 30568 |
2 |
| NTN Corporation | 4979 |
2 |
| Amada Holdings Co., Ltd. | 287 |
2 |
| Corrada S.p.A. | 21 |
2 |
| G-Tekt Corporation | 39 |
2 |
| Hoden Seimitsu Kako Kenkyusho Co., Ltd. | 45 |
2 |
| Magna International Inc. | 1214 |
2 |
| Metal Industries Research & Development Centre | 198 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
2 |
| Other owners | 74 |