- 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 29/38 - Nitrides
Patent holdings for IPC class C30B 29/38
Total number of patents in this class: 1041
10-year publication summary
|
54
|
48
|
48
|
61
|
62
|
59
|
42
|
69
|
50
|
40
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 5107 |
155 |
| Sumitomo Electric Industries, Ltd. | 15659 |
74 |
| Mitsubishi Chemical Corporation | 4583 |
71 |
| Sumitomo Chemical Company, Limited | 9086 |
52 |
| Shin-Etsu Handotai Co., Ltd. | 1285 |
41 |
| Tokuyama Corporation | 1417 |
36 |
| Osaka University | 3394 |
30 |
| Kyocera Corporation | 13988 |
23 |
| Sciocs Company Limited | 43 |
22 |
| Shin-Etsu Chemical Co., Ltd. | 5708 |
18 |
| Tohoku University | 2823 |
17 |
| Toyoda Gosei Co., Ltd. | 1808 |
14 |
| National University Corporation Tokyo University of Agriculture and Technology | 341 |
14 |
| Mitsubishi Materials Corporation | 2470 |
12 |
| Panasonic Corporation | 20030 |
11 |
| National Institute of Advanced Industrial Science and Technology | 3801 |
11 |
| National Institute for Materials Science | 1106 |
11 |
| Panasonic Holdings Corporation | 1771 |
11 |
| Stanley Electric Co., Ltd. | 1272 |
10 |
| Kwansei Gakuin Educational Foundation | 218 |
9 |
| Other owners | 399 |