- 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: 117
10-year publication summary
7
|
12
|
10
|
5
|
11
|
6
|
2
|
14
|
11
|
3
|
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. | 5598 |
11 |
Sumitomo Electric Industries, Ltd. | 15344 |
6 |
Element Six Technologies Limited | 192 |
6 |
North Carolina State University | 1555 |
6 |
Shin-Etsu Handotai Co., Ltd. | 1287 |
6 |
Soitec | 991 |
5 |
Apple Inc. | 54479 |
4 |
Kwansei Gakuin Educational Foundation | 217 |
4 |
Infineon Technologies AG | 8199 |
3 |
Sumitomo Chemical Company, Limited | 9009 |
3 |
Fuji Electric Co., Ltd. | 5106 |
3 |
Commissariat à l'énergie atomique et aux energies alternatives | 10837 |
3 |
National Institute of Information and Communications Technology | 631 |
3 |
Tamura Corporation | 356 |
3 |
Infineon Technologies Austria AG | 2130 |
2 |
Mitsubishi Electric Corporation | 45811 |
2 |
Nippon Telegraph and Telephone Corporation | 17157 |
2 |
Universitat Leipzig | 114 |
2 |
Universitat Ulm | 108 |
2 |
Wolfspeed, Inc. | 688 |
2 |
Other owners | 39 |