- All sections
- C - Chemistry; metallurgy
- 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: 3164
10-year publication summary
|
259
|
220
|
211
|
223
|
191
|
192
|
139
|
145
|
181
|
59
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Furukawa Electric Co., Ltd. | 3486 |
187 |
| UACJ Corporation | 631 |
180 |
| Mitsubishi Materials Corporation | 2378 |
165 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
148 |
| JX Nippon Mining & Metals Corporation | 1576 |
132 |
| Sumitomo Electric Industries, Ltd. | 14131 |
111 |
| Mitsubishi Shindoh Co., Ltd. | 135 |
76 |
| Nippon Steel Corporation | 5649 |
75 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
67 |
| Nippon Light Metal Company, Ltd. | 645 |
63 |
| Hitachi Metals, Ltd. | 2175 |
59 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
49 |
| AutoNetworks Technologies, Ltd. | 5809 |
48 |
| National Institute for Materials Science | 1108 |
46 |
| Tohoku University | 2526 |
38 |
| Tanaka Kikinzoku Kogyo K.K. | 589 |
37 |
| Furukawa Automotive Systems Inc. | 558 |
32 |
| Showa Denko K.K. | 2539 |
28 |
| NGK Insulators, Ltd. | 4589 |
23 |
| National University Corporation Kumamoto University | 371 |
22 |
| Other owners | 1578 |