- 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 31/22 - Doping by irradiation with electromagnetic waves or by particle radiation by ion-implantation
Patent holdings for IPC class C30B 31/22
Total number of patents in this class: 118
10-year publication summary
|
7
|
12
|
10
|
5
|
11
|
6
|
2
|
14
|
11
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Chemical Co., Ltd. | 5743 |
11 |
| Sumitomo Electric Industries, Ltd. | 15693 |
7 |
| Element Six Technologies Limited | 200 |
6 |
| North Carolina State University | 1580 |
6 |
| Shin-Etsu Handotai Co., Ltd. | 1296 |
6 |
| Soitec | 1038 |
5 |
| Apple Inc. | 55916 |
4 |
| Kwansei Gakuin Educational Foundation | 218 |
4 |
| Infineon Technologies AG | 8271 |
3 |
| Sumitomo Chemical Company, Limited | 9089 |
3 |
| Fuji Electric Co., Ltd. | 5233 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10959 |
3 |
| National Institute of Information and Communications Technology | 641 |
3 |
| Tamura Corporation | 359 |
3 |
| Infineon Technologies Austria AG | 2203 |
2 |
| Mitsubishi Electric Corporation | 46757 |
2 |
| Nippon Telegraph and Telephone Corporation | 16751 |
2 |
| Universitat Leipzig | 114 |
2 |
| Universitat Ulm | 113 |
2 |
| Wolfspeed, Inc. | 757 |
2 |
| Other owners | 39 |