- All sections
- C - Chemistry; metallurgy
- C30B - Single-crystal growth; unidirectional solidification of eutectic material or unidirectional demixing of eutectoid material; refining by zone-melting of material; production of a homogeneous polycrystalline material with defined structure; single crystals or homogeneous polycrystalline material with defined structure; after-treatment of single crystals or a homogeneous polycrystalline material with defined structure; apparatus 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: 89
10-year publication summary
|
5
|
10
|
15
|
5
|
5
|
7
|
9
|
8
|
5
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tamura Corporation | 350 |
18 |
| Namiki Seimitsu Houseki Kabushiki Kaisha | 171 |
8 |
| Koha Co., Ltd. | 61 |
7 |
| Kyocera Corporation | 12735 |
6 |
| Nanjing Tongli Crystal Materials Research Institute Co., Ltd | 16 |
5 |
| Evergreen Solar, Inc. | 31 |
4 |
| Luxium Solutions, LLC | 90 |
4 |
| Saint-Gobain Ceramics & Plastics, Inc. | 812 |
3 |
| Adamant Namiki Precision Jewel Co., Ltd. | 100 |
3 |
| Leading Edge Equipment Technologies, Inc. | 23 |
3 |
| Apple Inc. | 50209 |
2 |
| TDK Corporation | 6306 |
2 |
| II-VI Delaware, Inc. | 1720 |
2 |
| National Institute of Information and Communications Technology | 594 |
2 |
| Agc, Inc. | 4029 |
2 |
| Nanjing Tongli Crystal Material Institute Co., Ltd. | 4 |
2 |
| Hangzhou Fujia Gallium Technology Co. Ltd. | 20 |
2 |
| Infineon Technologies Austria AG | 1954 |
1 |
| Comadur S.A. | 81 |
1 |
| Crystal Systems Corporation | 16 |
1 |
| Other owners | 11 |