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  • All sections
  • C - Chemistrymetallurgy
  • C23C - Coating metallic materialcoating material with metallic materialsurface treatment of metallic material by diffusion into the surface, by chemical conversion or substitutioncoating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general
  • C23C 26/00 - Coating not provided for in groups

Patent holdings for IPC class C23C 26/00

Total number of patents in this class: 1472

10-year publication summary

108
108
85
78
95
78
78
77
72
41
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Nippon Steel Corporation
6231
75
JFE Steel Corporation
6833
54
Nihon Parkerizing Co., Ltd.
287
35
Nippon Steel & Sumitomo Metal Corporation
1988
29
IHI Corporation
3425
28
United Technologies Corporation
2247
26
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
2875
22
Mitsubishi Electric Corporation
46037
21
Rtx Corporation
9360
20
The Furukawa Electric Co., Ltd.
3646
17
Nippon Paint Surf Chemicals Co., Ltd.
94
15
Sumitomo Electric Industries, Ltd.
15455
13
FUJIFILM Corporation
29350
12
Showa Denko K.K.
2244
12
POSCO
2187
12
Mitsui Mining & Smelting Co., Ltd.
1481
11
JX Nippon Mining & Metals Corporation
1489
10
POSCO Co., Ltd.
1564
10
General Electric Company
13767
9
Ibiden Co., Ltd.
1703
9
Other owners 1032

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