ClassID:

120456

C23C22/18 - 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 phosphates; Orthophosphates containing manganese cations

Sub-classes:
Recent Application in this class:
#1
20240287681
2024-08-29

Improved Activation Agent for Manganese Phosphating Processes

#2
20220267907
2022-08-25

COMPOSITION, ITS USE FOR ACID PICKLING OF MAGNESIUM ALLOYS AND METHOD FOR ACID PICKLING OF MAGNESIUM ALLOYS

#3
20220112605
2022-04-14

Aqueous composition for coating grain-oriented steel

#4
20220098692
2022-03-31

Grain-oriented electrical steel sheet and method for manufacturing same

#5
20210123113
2021-04-29

Method for treating and phosphatizing metal board without using acid

#6
20200400255
2020-12-24

Threaded connection for pipes and method for producing threaded connection for pipes

#7
20200102656
2020-04-02

STEEL PISTON HAVING A PHOSPHATE LAYER

#8
20190203360
2019-07-04

Method for treatment of a chromium finish surface

#9
20190186018
2019-06-20

Grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet

#10
20190003620
2019-01-03

Threaded connection for pipe or tube and method of producing the threaded connection for pipe or tube

#11
20180251899
2018-09-06

INSULATIVE COATING PROCESSING LIQUID AND METHOD FOR MANUFACTURING METAL HAVING INSULATIVE COATING

#12
20180171483
2018-06-21

COATING STRUCTURE, IMPELLER, COMPRESSOR, METAL PART MANUFACTURING METHOD, IMPELLER MANUFACTURING METHOD, AND COMPRESSOR MANUFACTURING METHOD

#13
20180080127
2018-03-22

Insulating-coated oriented magnetic steel sheet and method for manufacturing same

#14
20150368158
2015-12-24

Solution for forming insulation coating and grain-oriented electrical steel sheet

#15
20150218706
2015-08-06

Production method of galvannealed steel sheet having excellent formability and exfoliation resistance after adhesion

#16
20150191826
2015-07-09

Chemical conversion coating and method of fabricating the same

#17
20140217064
2014-08-07

Composite of metal and resin and method for manufacturing the same

#18
20140186641
2014-07-03

Composite of metal and resin and method for manufacturing same

#19
20120211124
2012-08-23

Galvannealed steel sheet having excellent formability and exfoliation resistance after adhesion and production method thereof

#20
20120112862
2012-05-10

Rare earth magnet and method for manufacturing same

#21
20110226388
2011-09-22

Chromate-free conversion film solution and the method of applying the solution to magnesium alloys

#22
20110223258
2011-09-15

Ferric Phosphate Based Composition, the Preparation and Use Thereof

#23
20110217514
2011-09-08

Magnesium alloy member and method of manufacturing the same

#24
20110165426
2011-07-07

AQUEOUS SOLUTION FOR BLACKENING CHEMICAL CONVERSION COATING OF ZINC OR ZINC ALLOY SURFACE AND METHOD OF FORMING BLACKENED ANTI-CORROSION COATING FILM USING THE AQUEOUS SOLUTION FOR THE CHEMICAL CONVERSION COATING

#25
20110146847
2011-06-23

Chemical conversion treatment liquid

#26
20110086171
2011-04-14

Method for applying manganese phosphate layers

#27
20100206437
2010-08-19

Treatment solution for insulation coating for grain oriented electrical steel sheet and method for producing grain oriented electrical steel sheet having insulation coating

#28
20100028602
2010-02-04

COMPOSITE OF METAL AND RESIN AND METHOD FOR MANUFACTURING THE SAME

#29
20090280296
2009-11-12

Composite of metal and resin and method for manufacturing same

#30
20090159096
2009-06-25

ACID PICKLING SOLUTION AND METHOD FOR SURFACE TREATMENT UTILIZING THE SAME

#31
20080283021
2008-11-20

Coating for connecting rods and bearings in an internal combustion engine

#32
20080264523
2008-10-30

Method for Applying a Phosphate Coating on a Steel or Iron Part, and Corresponding Steel or Iron Part

#33
20080214415
2008-09-04

Composition for Sliding Element, Sliding Element and Fluid Machine

#34
20080190520
2008-08-14

Grain-oriented electrical steel sheet and method for manufacturing grain-oriented electrical steel sheet

#35
20080050581
2008-02-28

Rare Earth Magnet and Method for Manufacturing Same

#36
20070298980
2007-12-27

Thermal spray membrane contact material, contact member and contact part, and apparatuses to which they are applied

#37
20070131310
2007-06-14

Durable Coreplate For Improved Electrical Resistance In Electric Equipment And A Process Thereof

#38
20060257572
2006-11-16

Surface treatment for metal-polymer laminated electrochemical cell package

#39
20050233211
2005-10-20

Surface treatment for metal-polymer laminated electrochemical cell package

#40
20050208224
2005-09-22

Method for applying an anti-corrosion coating to especially corrosion exposed parts in rock drill equipment

#41
20050147832
2005-07-07

Surface-treated steel sheets of good white rust resistance, and method for producing them

#42
20050051975
2005-03-10

Thermal spray membrane contact material, contact member and contact part, and apparatuses to which they are applied