ClassID:

119921

C23C8/14 - CPC Classification

Classification description:

Solid state diffusion of only non-metal elements into metallic material surfaces ; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied; Oxidising using elemental oxygen or ozone Oxidising of ferrous surfaces

Recent Application in this class:
#1
20260124639
2026-05-07

DEPOSITING OF MATERIAL BY SPRAYING PRECURSOR USING SUPERCRITICAL FLUID

#2
20260029022
2026-01-29

ROLLING BEARING AND METHOD FOR PRODUCING SAME

#3
20240116074
2024-04-11

DEPOSITING OF MATERIAL BY SPRAYING PRECURSOR USING SUPERCRITICAL FLUID

#4
20240035502
2024-02-01

Fastener joint and associated method for avoiding corrosion of dissimilar material fastener joints

#5
20230313056
2023-10-05

ANTI-COKING EQUIPMENT, PREPARATION METHOD THEREFOR AND USE THEREOF

#6
20230282415
2023-09-07

Method for improving corrosion resistance of high abundance rare earth permanent magnet

#7
20220243749
2022-08-04

Fastener joint and associated method for avoiding corrosion of dissimilar material fastener joints

#8
20220235468
2022-07-28

Laminate

#9
20220037067
2022-02-03

Metal magnetic powder and method for manufacturing same, as well as coil component and circuit board

#10
20220025504
2022-01-27

Cast product having alumina barrier layer

#11
20210343953
2021-11-04

Substrate for flexible device

#12
20210272728
2021-09-02

GRAIN ORIENTED ELECTRICAL STEEL SHEET AND PRODUCING METHOD THEREOF

#13
20210246540
2021-08-12

Method for manufacturing metal ring laminate

#14
20210214831
2021-07-15

Protective surface on stainless steel

#15
20210187544
2021-06-24

Depositing of material by spraying precursor using supercritical fluid

#16
20210169273
2021-06-10

METHOD OF MANUFACTURING COOKING UTENSIL AND COOKING UTENSIL

#17
20210010125
2021-01-14

Method for forming a layer of single-phase oxide (Fe, Cr)Owith a rhombohedral structure on a steel or super alloy substrate

#18
20200239995
2020-07-30

Method for treating inner wall surface of treatment object

#19
20200232075
2020-07-23

Black ferrite-based stainless steel sheet

#20
20200227760
2020-07-16

Substrate stainless steel sheet for fuel cell separators and production method therefor

#21
20200037821
2020-02-06

METHOD OF MANUFACTURING COOKING UTENSIL AND COOKING UTENSIL

#22
20190323102
2019-10-24

Surface treatment method of metallic materials

#23
20190249288
2019-08-15

Nanocrystal production method, and steel production method

#24
20190136361
2019-05-09

Cast product having alumina barrier layer

#25
20190127816
2019-05-02

Tube body that is to be used in high-temperature atmosphere and method for forming metal oxide layer on inner surface of tube body

#26
20190101176
2019-04-04

Steel wire for spring

#27
20190100833
2019-04-04

Protective surface on stainless steel

#28
20190055490
2019-02-21

Oil tempered wires

#29
20180375087
2018-12-27

Process of preparing a chemically pre-formed (CPF) iron negative electrode with oxidizing gases

#30
20180334736
2018-11-22

Carbon-containing steel material and method for producing same

#31
20180230569
2018-08-16

Cold-rolled steel sheet, coated steel sheet, method for manufacturing cold-rolled steel sheet, and method for manufacturing coated steel sheet

#32
20180216239
2018-08-02

Method of manufacturing edged tool

#33
20180193916
2018-07-12

ADDITIVE MANUFACTURING METHOD AND MATERIALS

#34
20180142339
2018-05-24

Method and device for reaction control

#35
20170271173
2017-09-21

METHOD FOR FORMING METALLIZATION STRUCTURE

#36
20170218496
2017-08-03

Heat resistant ferritic steel and method for producing the same

#37
20170162857
2017-06-08

Process of preparing a chemically pre-formed (CPF) iron negative electrode with oxidizing gases

#38
20170121809
2017-05-04

Methods for creating a zinc-metal oxide layer in metal components for corrosion resistance

#39
20170030408
2017-02-02

Multi-layer sliding bearing

#40
20160363349
2016-12-15

METHOD FOR PRODUCING AN ELEMENT FOR ABSORBING SOLAR RADIATION FOR A CONCENTRATING SOLAR THERMAL POWER PLANT, ELEMENT FOR ABSORBING SOLAR RADIATION

#41
20160333456
2016-11-17

Valve seat

#42
20160304982
2016-10-20

Method for producing high-strength galvannealed steel sheets

#43
20160304980
2016-10-20

Method of annealing steel sheets

#44
20160194543
2016-07-07

Compositions, devices, systems and methods for concentrating solar power

#45
20160160328
2016-06-09

Ferritic stainless steel foil

#46
20160138516
2016-05-19

METHOD FOR PRODUCING AN OXIDATION PROTECTION LAYER FOR A PISTON FOR USE IN INTERNAL COMBUSTION ENGINES AND PISTON HAVING AN OXIDATION PROTECTION LAYER

#47
20160083851
2016-03-24

Surface treatment to passivate sublimation surfaces to hydrophobic contaminants

#48
20160079455
2016-03-17

Stainless steel substrate for solar cell having superior insulating properties and low thermal expansion coefficient and method of producing the same

#49
20160017874
2016-01-21

Slide member, refrigerant compressor incorporating slide member, refrigerator and air conditioner

#50
20160017471
2016-01-21

HIGH-STRENGTH GALVANIZED STEEL SHEET AND PRODUCTION METHOD THEREFOR

#51
20150064454
2015-03-05

Chromium-containing austenitic alloy

#52
20150059931
2015-03-05

Process of preparing a chemically pre-formed (CPF) iron negative electrode with oxidizing gases

#53
20150003935
2015-01-01

Steel for bolt use, bolt, and method for manufacturing bolt

#54
20140295194
2014-10-02

Heat resistant ferritic steel and method for producing the same

#55
20140260219
2014-09-18

Process for producing a diffusion barrier layer and process for producing an exhaust gas treatment unit

#56
20140090639
2014-04-03

Process for producing an element for absorbing solar radiation for a thermal concentrating solar power plant

#57
20130306203
2013-11-21

High strength steel sheet and method for manufacturing the same

#58
20130306195
2013-11-21

Surface treatment to passivate sublimation surfaces to hydrophobic contaminants

#59
20130295411
2013-11-07

Hot-dip Al—Zn coated steel sheet

#60
20130244866
2013-09-19

Catalyst for direct decomposition of nitric oxide and method of manufacturing the catalyst

#61
20130074992
2013-03-28

Method of manufacturing metal part

#62
20130000789
2013-01-03

Method for manufacturing steel plate with a layered structure

#63
20120325376
2012-12-27

High-strength cold-rolled steel sheet and method for producing the same

#64
20120308772
2012-12-06

STEAM TURBINE MEMBER

#65
20120085310
2012-04-12

ENGINE COMPONENT COMPRISING CORROSION-PROTECTION LAYER AND METHOD FOR MANUFACTURE OF ENGINE COMPONENTS

#66
20120064242
2012-03-15

Method for monitoring corrosion protection in power plant

#67
20110217464
2011-09-08

Method for applying a thermal barrier coating

#68
20100184590
2010-07-22

Honeycomb body having a metallic foil with an oxide coat, foil having an oxide coat and method for producing an oxide coat on a metallic foil

#69
20100018281
2010-01-28

Method of manufacturing plug used to pierce and roll metal material, method of manufacturing metal pipe and plug used to pierce and roll metal material

#70
20090269623
2009-10-29

Metallic bipolar plate for fuel cell and method for forming surface layer of the same

#71
20060269766
2006-11-30

Chromium-nickel stainless steel alloy article having oxide coating formed from the base metal suitable for brake apparatus

#72
20060193940
2006-08-31

Resin molding machine and member for resin molding machine having film in passive state

#73
20060182888
2006-08-17

Modifying steel surfaces to mitigate fouling and corrosion