- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 35/40 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on ferrites with rare earth oxide
Patent holdings for IPC class C04B 35/40
Total number of patents in this class: 41
10-year publication summary
|
1
|
0
|
0
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0
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2
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1
|
7
|
4
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 1965 |
13 |
| Hengdian Group Dmegc Magnetics Co., Ltd | 169 |
8 |
| TDK Corporation | 6879 |
5 |
| The University of Tokyo | 4249 |
3 |
| Dowa Electronics Materials Co., Ltd. | 636 |
2 |
| Toshiba Corporation | 12523 |
1 |
| Sumitomo Chemical Company, Limited | 9089 |
1 |
| National University Corporation Okayama University | 459 |
1 |
| Nippon Shokubai Co., Ltd. | 1502 |
1 |
| Skyworks Solutions, Inc. | 3784 |
1 |
| Indian Institute of Technology Madras (IIT Madras) | 475 |
1 |
| TDG Holding Co., Ltd. | 26 |
1 |
| Nantong Wanbao Industry Co., Ltd. | 1 |
1 |
| Shenzhen Huayang Technology Development Co., Ltd | 15 |
1 |
| Zhengzhou Non-Ferrous Metals Research Institute Co.Ltd of Chalco | 46 |
1 |
| Other owners | 0 |