- 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 19/12 - Liquid-phase epitaxial-layer growth characterised by the substrate
Patent holdings for IPC class C30B 19/12
Total number of patents in this class: 180
10-year publication summary
|
31
|
23
|
11
|
6
|
6
|
5
|
5
|
5
|
7
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 5170 |
31 |
| Sumitomo Electric Industries, Ltd. | 16404 |
9 |
| Toyota Motor Corporation | 36327 |
8 |
| Toyoda Gosei Co., Ltd. | 1871 |
7 |
| Kwansei Gakuin Educational Foundation | 226 |
7 |
| Toyo Tanso Co., Ltd. | 217 |
6 |
| National University Corporation Nagoya University | 778 |
5 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12318 |
5 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 49027 |
4 |
| TDK Corporation | 7039 |
4 |
| Central Glass Company, Limited | 1297 |
4 |
| Sumitomo Metal Mining Co., Ltd. | 2011 |
4 |
| Samsung Electronics Co., Ltd. | 159298 |
3 |
| The Regents of the University of California | 20924 |
3 |
| Corning Incorporated | 10550 |
3 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
3 |
| Osaka University | 3252 |
3 |
| The Penn State Research Foundation | 1641 |
3 |
| Quest Integrity USA, LLC | 63 |
3 |
| Tohoku University | 3039 |
3 |
| Other owners | 62 |