- 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 29/30 - Niobates; Vanadates; Tantalates
Patent holdings for IPC class C30B 29/30
Total number of patents in this class: 155
10-year publication summary
9
|
13
|
7
|
19
|
16
|
15
|
15
|
12
|
8
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Shin-Etsu Chemical Co., Ltd. | 5132 |
10 |
Sumitomo Metal Mining Co., Ltd. | 1670 |
10 |
NGK Insulators, Ltd. | 4589 |
7 |
Murata Manufacturing Co., Ltd. | 22355 |
6 |
Soitec | 892 |
6 |
Fujian Jing' an Optoelectronics Co., Ltd | 26 |
6 |
Kyocera Corporation | 12735 |
5 |
Shanghai Institute of Ceramics, Chinese Academy of Sciences | 153 |
5 |
TDG Holding Co., Ltd. | 23 |
4 |
Nippon Telegraph and Telephone Corporation | 14195 |
3 |
National Institute of Advanced Industrial Science and Technology | 3677 |
3 |
Research and Development Center, Shanghai Institute of Ceramics | 14 |
3 |
TRS Technologies, Inc. | 14 |
3 |
Yamaju Ceramics Co., Ltd. | 3 |
3 |
Massachusetts Institute of Technology | 9795 |
2 |
Purdue Research Foundation | 3277 |
2 |
citizen Finedevice Co., Ltd. | 59 |
2 |
citizen Watch Co., Ltd. | 1062 |
2 |
Fukuda Crystal Laboratory | 11 |
2 |
Nankai University | 201 |
2 |
Other owners | 69 |