ClassID:

120463

C23C22/24 - CPC Classification

Classification description:

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds

Sub-classes:
Recent Application in this class:
#1
20250269565
2025-08-28

Metal Material and Use Thereof in Preparing Metal Model

#2
20250144686
2025-05-08

MANUFACTURING METHOD FOR TINPLATE

#3
20210339199
2021-11-04

ACIDIC TREATMENT LIQUID PROCESSING APPARATUS, ACIDIC TREATMENT LIQUID PROCESSING METHOD, SURFACE TREATMENT SYSTEM, AND SURFACE TREATMENT METHOD

#4
20190256982
2019-08-22

Nanocrystalline material based on stainless steel surface, and preparation method therefor

#5
20190186036
2019-06-20

Anti-coking nanomaterial based on stainless steel surface, and preparation method therefor

#6
20190160500
2019-05-30

Colored stainless steel plate and colored stainless steel coil

#7
20180312976
2018-11-01

COATED ARTICLE RESISTANT TO CORROSION WITH NANO-CRYSTALLINE LAYER

#8
20180228029
2018-08-09

Surface-treated copper foil, copper foil having carrier, laminated material, method for producing printed wiring board, and method for producing electronic apparatus

#9
20170342587
2017-11-30

OBJECT PROCESSING BY CONVERSION COATING

#10
20170191166
2017-07-06

METHOD FOR MANUFACTURING A PROCESS APPARATUS AND A PROCESS APPARATUS

#11
20170130355
2017-05-11

Stainless steel plate

#12
20160348971
2016-12-01

Hearth roll and manufacturing method therefor

#13
20160319435
2016-11-03

Multilayer coating

#14
20150322572
2015-11-12

Method for passivating a metal surface

#15
20150292073
2015-10-15

Method for producing hot-dip Zn alloy-plated steel sheet

#16
20150259776
2015-09-17

Method for producing hot-dip Zn alloy-plated steel sheet

#17
20150174610
2015-06-25

Method of spray coating a surface having a magnesium base

#18
20150147678
2015-05-28

Titanium or titanium alloy material for fuel cell separator having high contact conductivity with carbon and high durability, fuel cell separator including the same, and manufacturing method therefor

#19
20150079415
2015-03-19

Surface-treated copper foil

#20
20140017564
2014-01-16

Lithium-ion secondary battery, electrode for the secondary battery, and electrolytic copper foil for electrode for the secondary battery

#21
20130143066
2013-06-06

Steel sheet for can exhibiting excellent corrosion resistance

#22
20130011694
2013-01-10

Steel sheet for container excellent in corrosion resistance

#23
20120258281
2012-10-11

COPPER FOIL AND METHOD FOR PRODUCING COPPER FOIL

#24
20120107637
2012-05-03

Copper Foil for Semiconductor Package Substrate and Substrate for Semiconductor Package

#25
20110259848
2011-10-27

Rolled Copper Foil or Electrolytic Copper Foil for Electronic Circuit, and Method of Forming Electronic Circuit Using Same

#26
20100010604
2010-01-14

PASSIVATED METAL CONDUCTORS FOR USE IN CARDIAC LEADS AND METHOD OF PREPARING THE SAME

#27
20090208762
2009-08-20

Copper Foil for Printed Wiring Board

#28
20080254221
2008-10-16

Coating composition and methods of coating

#29
20070264522
2007-11-15

Black Colored Steel Sheet Having Excellent Electromagnetic Shielding Property, Electromagnetic Shielding Member, and Electromagnetic Shielding Case

#30
20070119715
2007-05-31

Corrosion Resistant Wire Products and Method of Making Same

#31
20060283622
2006-12-21

Electric wire having a core of aluminum or aluminum alloy

#32
20050276989
2005-12-15

Coating composition and methods of coating

#33
20050228157
2005-10-13

Thermoplastic elastomer bonded directly to metal substrate

#34
20050221008
2005-10-06

Method of plating a golf club head

#35
20050141836
2005-06-30

Method of metallizing non-conductive substrates and metallized non-conductive substrates formed thereby