- 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: 1037
10-year publication summary
|
54
|
49
|
48
|
61
|
63
|
62
|
44
|
69
|
50
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4964 |
150 |
| Sumitomo Electric Industries, Ltd. | 15495 |
75 |
| Mitsubishi Chemical Corporation | 4514 |
71 |
| Sumitomo Chemical Company, Limited | 9047 |
52 |
| Shin-Etsu Handotai Co., Ltd. | 1284 |
41 |
| Tokuyama Corporation | 1392 |
35 |
| Osaka University | 3374 |
31 |
| Kyocera Corporation | 13831 |
23 |
| Sciocs Company Limited | 43 |
22 |
| Shin-Etsu Chemical Co., Ltd. | 5662 |
18 |
| Tohoku University | 2785 |
17 |
| Toyoda Gosei Co., Ltd. | 1781 |
14 |
| National University Corporation Tokyo University of Agriculture and Technology | 342 |
13 |
| Mitsubishi Materials Corporation | 2444 |
12 |
| Panasonic Corporation | 20099 |
11 |
| National Institute for Materials Science | 1105 |
11 |
| Panasonic Holdings Corporation | 1731 |
11 |
| National Institute of Advanced Industrial Science and Technology | 3802 |
10 |
| Stanley Electric Co., Ltd. | 1248 |
10 |
| Kwansei Gakuin Educational Foundation | 218 |
9 |
| Other owners | 401 |