- All sections
- C - Chemistry; metallurgy
- C04B - Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
- C04B 35/587 - Fine ceramics
Patent holdings for IPC class C04B 35/587
Total number of patents in this class: 170
10-year publication summary
5
|
5
|
4
|
9
|
8
|
11
|
22
|
18
|
21
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Toshiba Materials Co., Ltd. | 600 |
33 |
Denka Company Limited | 2189 |
19 |
Toshiba Corporation | 12017 |
16 |
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
15 |
Kyocera Corporation | 12735 |
7 |
Tokuyama Corporation | 1248 |
7 |
Ube Industries, Ltd. | 921 |
5 |
Agc, Inc. | 4029 |
5 |
NGK Insulators, Ltd. | 4589 |
4 |
Proterial, Ltd. | 638 |
3 |
Sumitomo Electric Industries, Ltd. | 14131 |
2 |
Hitachi Metals, Ltd. | 2175 |
2 |
NTN Corporation | 5008 |
2 |
NGK Spark Plug Co., Ltd. | 935 |
2 |
CARBO Ceramics Inc. | 248 |
2 |
Shanghai Institute of Ceramics, Chinese Academy of Sciences | 153 |
2 |
Ube Corporation | 315 |
2 |
Lanzhou Institute of Chemical Physics, CAS | 9 |
2 |
Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing | 3 |
2 |
Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering | 4 |
2 |
Other owners | 36 |