- 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 15/34 - Edge-defined film-fed crystal growth using dies or slits
Patent holdings for IPC class C30B 15/34
Total number of patents in this class: 91
10-year publication summary
|
10
|
15
|
5
|
5
|
7
|
9
|
8
|
5
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tamura Corporation | 353 |
18 |
| Namiki Seimitsu Houseki Kabushiki Kaisha | 161 |
8 |
| Koha Co., Ltd. | 62 |
7 |
| Kyocera Corporation | 13344 |
6 |
| Nanjing Tongli Crystal Materials Research Institute Co., Ltd | 16 |
5 |
| Evergreen Solar, Inc. | 30 |
4 |
| Luxium Solutions, LLC | 89 |
4 |
| Blue Origin, LLC | 168 |
3 |
| Saint-Gobain Ceramics & Plastics, Inc. | 839 |
3 |
| Adamant Namiki Precision Jewel Co., Ltd. | 93 |
3 |
| Apple Inc. | 52750 |
2 |
| TDK Corporation | 6539 |
2 |
| II-VI Delaware, Inc. | 1717 |
2 |
| National Institute of Information and Communications Technology | 622 |
2 |
| Agc, Inc. | 4470 |
2 |
| Nanjing Tongli Crystal Material Institute Co., Ltd. | 4 |
2 |
| Hangzhou Fujia Gallium Technology Co. Ltd. | 20 |
2 |
| Infineon Technologies Austria AG | 2067 |
1 |
| Comadur S.A. | 84 |
1 |
| Crystal Systems Corporation | 17 |
1 |
| Other owners | 13 |