- All sections
- C - Chemistrymetallurgy
- C30B - Single-crystal growthunidirectional solidification of eutectic material or unidirectional demixing of eutectoid materialrefining by zone-melting of materialproduction of a homogeneous polycrystalline material with defined structuresingle crystals or homogeneous polycrystalline material with defined structureafter-treatment of single crystals or a homogeneous polycrystalline material with defined structureapparatus therefor
- C30B 25/20 - Epitaxial-layer growth characterised by the substrate the substrate being of the same materials as the epitaxial layer
Patent holdings for IPC class C30B 25/20
Total number of patents in this class: 746
10-year publication summary
40
|
75
|
61
|
38
|
63
|
47
|
53
|
53
|
52
|
54
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sumitomo Electric Industries, Ltd. | 15668 |
95 |
Mitsubishi Chemical Corporation | 4585 |
48 |
Element Six Technologies Limited | 200 |
40 |
Resonac Corporation | 2926 |
32 |
Sumco Corporation | 1114 |
31 |
Sumitomo Chemical Company, Limited | 9092 |
22 |
National Institute of Advanced Industrial Science and Technology | 3797 |
17 |
Tokuyama Corporation | 1422 |
16 |
Mitsubishi Electric Corporation | 46618 |
14 |
Shin-Etsu Chemical Co., Ltd. | 5715 |
14 |
NGK Insulators, Ltd. | 5115 |
14 |
Fuji Electric Co., Ltd. | 5220 |
14 |
Shin-Etsu Handotai Co., Ltd. | 1288 |
14 |
Siltronic AG | 423 |
14 |
Showa Denko K.K. | 2193 |
13 |
Globalwafers Co., Ltd. | 651 |
12 |
Kwansei Gakuin Educational Foundation | 218 |
12 |
Denso Corporation | 24588 |
11 |
Tamura Corporation | 359 |
11 |
Sumitomo Electric Hardmetal Corp. | 1038 |
10 |
Other owners | 292 |