- All sections
- C - Chemistrymetallurgy
- C22F - Changing the physical structure of non-ferrous metals or non-ferrous alloys
- C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
Patent holdings for IPC class C22F 1/00
Total number of patents in this class: 3390
10-year publication summary
|
212
|
207
|
213
|
187
|
187
|
133
|
148
|
181
|
163
|
142
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 704 |
204 |
| The Furukawa Electric Co., Ltd. | 3704 |
200 |
| Mitsubishi Materials Corporation | 2469 |
174 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2879 |
147 |
| JX Nippon Mining & Metals Corporation | 1485 |
132 |
| Sumitomo Electric Industries, Ltd. | 15647 |
112 |
| Nippon Steel Corporation | 6365 |
93 |
| Mitsubishi Shindoh Co., Ltd. | 126 |
76 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
67 |
| Nippon Light Metal Company, Ltd. | 672 |
63 |
| Hitachi Metals, Ltd. | 1971 |
59 |
| Sumitomo Wiring Systems, Ltd. | 10487 |
50 |
| AutoNetworks Technologies, Ltd. | 6681 |
49 |
| National Institute for Materials Science | 1106 |
47 |
| Tanaka Kikinzoku Kogyo K.K. | 584 |
40 |
| Tohoku University | 2824 |
40 |
| Furukawa Automotive Systems Inc. | 594 |
33 |
| Nippon Micrometal Corporation | 150 |
28 |
| Showa Denko K.K. | 2196 |
26 |
| Novelis Inc. | 762 |
26 |
| Other owners | 1724 |