U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 205/197 - Nonelectrolytic coating is phosphorus- or chromium-containing (e.g., phosphate, chromate, etc.)


Subclass of Class 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
Definition: Subject matter wherein the major or predominant constituent
No. of patents: 49
Last issue date: 09/09/2008


1    
NumberTitleIssue Date
7422629Nonsludging zinc phosphating composition and process
Electrolysis using a suitable electrolyte provides a completely nonsludging zinc phosphate conversion coating process that produces a high quality conversion coating in a very short time. The suitable electrolyte contains at least water, dissolved nitric acid, and d...
09/09/2008
7285191Phosphate film processing method and phosphate film processing device
A phosphate coating apparatus for depositing a phosphate coating on a metal material by electrolyzing the metal material in a predetermined electrolysis solution includes a positive electrode and a negative electrode, of which one electrode being disposed in contact...
10/23/2007
7195796Polymeric coating formulations and steel substrate composites
A process is provided for making a composite work article suitable for fabricating rigid sheet metal can components. A steel sheet having first and second surfaces is pre-treated to enhance reception and retention of a multi-layer polymer coating on the pre-treated ...
03/27/2007
6689268Copper foil composite including a release layer
A composite material includes a structural carrier layer and a relatively thin metal foil layer separated by a release layer. The release layer, that may be an admixture of a metal such as nickel or chromium and a non-metal such as chromium oxide, nickel ...
02/10/2004
6475644Radioactive coating solutions methods, and substrates
Radioactive coating solutions and sol-gels, and corresponding methods for making a substrate radioactive by the application of the radioactive coating solutions and sol-gels thereto. The radioactive coating solution comprises at least one carrier metal an...
11/05/2002
6426146Treated copper foil and process for making treated copper foil
This invention relates to a treated copper foil, comprising: a copper foil with a layer of zinc oxide adhered to the base surface of at least on side of said copper foil, said layer of zinc oxide having a thickness of about 3 Å to about 80 Å; and a laye...
07/30/2002
6419811Method for surface treatment of copper foil
Disclosed is a process of treating the surface of copper foil without using harmful elements such as arsenic, selenium and tellurium unlike in the prior art. It is possible to, in an easy way, obtain a uniform rough condition and low roughness and produce...
07/16/2002
6174426Tin-plated steel with adhesion promoter
A method is provided for enhancing the adhesion of organic polymer coatings to electrolytically passivated (CDC) tin-plated steel strip. The method includes applying a solution comprising 0.1 to 7 percent of an adhesion promoter to the electrolytically ti...
01/16/2001
6054225Composite chromium plating film and sliding member covered thereof
A piston ring is formed with a nitrided layer over all surfaces and formed with a composite chromium plating film over the nitrided layer in the outer circumferential surface. The composite chromium plating film has a network of cracks formed on the outer...
04/25/2000
5730809Passivate for tungsten alloy electroplating
A passivate for tungsten alloy electroplates. The passivate includes an effective quantity of CrO3 in an aqueous bath having a pH of from about 3.5 to about 7.5....
03/24/1998
5700362Method of treating copper foil for printed circuits
A copper foil for printed circuits of which a shiny side has resin dust resistance, excels in heat discoloration resistance and rust preventiveness, and does not adversely affect the solderability and resist adhesion, and a method of treating the surface ...
12/23/1997
5582709Zinc-cobalt alloy-plating alkaline bath and plating method using the same
A zinc-cobalt alloy-plating alkaline bath comprises a zinc compound, a cobalt compound, an alkali hydroxide and a reaction product of an alkyleneamine with an alkylene oxide and having a pH of not less than 13 and a method for forming a zinc-cobalt alloy ...
12/10/1996
5550006Phosphating compositions and processes, particularly for use in fabrication of printed circuits utilizing organic resists
Composition and methods for providing a phosphate conversion coating on a metal surface, particularly a copper surface, characterized in that the phosphating composition includes at least one composition-soluble compound containing vanadium, niobium, tung...
08/27/1996
5456817Surface treatment method of a copper foil for printed circuits
There is disclosed a treating process whereby the thermal oxidation resistance on the shiny side of a copper foil is enhanced so that the shiny side will not discolor on heating to higher temperatures than usual, without impairing the foil's solder wettab...
10/10/1995
5447619Copper foil for the manufacture of printed circuit boards and method of producing the same
A surface of copper foil is protected from oxidation and tarnishing by electrodepositing on the surface a protective layer containing metallic zinc and one or more compound of tri-valent chromium, which protection layer is easily removable by dissolution ...
09/05/1995
5356528Copper foil for printed circuits and method of producing same
A copper foil for printed circuits having a rust-preventive and heat-discoloration resistant coat, comprising a first layer of zinc or an alloy or a compound or a composition including zinc mainly, and a second layer including a silane coupling agent and ...
10/18/1994
5348639Surface treatment for iron-based permanent magnet including rare-earth element
A surface treatment for a R-TM-X type of permanent magnet comprising the steps: Etching the magnet with nitric acid having a concentration of 0.2 to 10 vol %, then etching the magnet with a mixture of oxygenated water having a hydrogen peroxide concentrat...
09/20/1994
5294266Process for a passivating postrinsing of conversion layers
The invention is in a composition and process for the chromium free passivating postrinsing of conversion layers on metals before the application of a paint or adhesive. The conversion layers can be on the bases of phosphate layers, at least two polyvalen...
03/15/1994
5288377Process for the manufacture of printed circuits using electrophoretically deposited organic resists
Copper surfaces upon which organic resins are electrophoretically deposited to serve as plating or etch resists in the course of manufacturing printed circuits, are preliminarily provided with a uniformizing/passivating coating layer, such as a layer of c...
02/22/1994
5286366Surface treatment for iron-based permanent magnet including rare-earth element
A magnetically anisotropic magnet substrate is coated with a triple layer of nickel plating preferably followed by a chromate layer. The layer of nickel plating includes an inner layer of a non-bright nickel plating, followed by an intermediate nickel-str...
02/15/1994
5275716Method for manufacturing tin-electroplated cold-rolled steel strip
A method for manufacturing a tin-electroplated cold-rolled steel strip, which comprises the steps of: continuously annealing a degreased cold-rolled steel strip; then, subjecting, following the continuous annealing treatment, the continuously annealed col...
01/04/1994
5268078Aluminum plates for automobile body panels and method of pretreatment for painting thereof
This invention relates to Al plates suitable for automobile body panels and also relates to a method of pretreatment for painting. The features are: A Zn plating layer having 0.05~0.38 g/m2 of coating weight is formed on the surface of an Al pl...
12/07/1993
5182172Post-plating passivation treatment
An improved method for inhibiting corrosion of precious metal plated objects is provided wherein a thin dichromate film coats the precious metal outer surface and fills the precious metal outer surface pores using either immersion or electrolytic methods ...
01/26/1993
5071520Method of treating metal foil to improve peel strength
A technique for improving the peel strength of copper and copper based alloy materials, and particularly for copper or copper based alloy materials which may be wrought or electrolytically deposited copper foil having an antitarnish treatment applied ther...
12/10/1991
5057193Anti-tarnish treatment of metal foil
A method of imparting tarnish and corrosion resistance to a copper or copper alloy foil in which the foil is first coated with a thin layer of zinc on at least one side. Thereafter, the foil is treated with an aqueous solution of chromic acid and sulfuric...
10/15/1991
5019222Treatment of copper foil for printed circuits
A process for the treatment of a copper foil for printed circuits comprises forming, over the surface of the copper foil to be treated, of an electroplating alloy deposit selected from the group consisting of electroplating deposits of binary alloys compo...
05/28/1991
5011711Method for post-treatment of electroplated steel sheets for soldering
Electroplated steel sheet suitable for soldering is provided by coating the plated steel sheet with a post-treatment solution in the range of 0.01 to 2 um in dry thickness. The post-treatment solution contains from 2 to 200 g/liter of at least one water-s...
04/30/1991
4904352Electrodeposited multilayer coating for titanium
A process for the electrodeposition of a multilayered coating on an article formed of titanium or titanium alloy comprises the steps of: (i) cleaning the article by conventional means, such as by descaling, dry blasing, soaking, and rinsing, so as to remo...
02/27/1990
4861441Method of making a black surface treated steel sheet
A colored zinc composite-plated steel sheet which comprises a steel sheet or a plated steel sheet, a colored composite-plating film comprising zinc and an oxide of a coloring metal such as nickel, cobalt, iron, chromium, tin or copper and provided on the ...
08/29/1989
4808278Method and apparatus for producing one-side electroplated steel strip with enhanced phosphatability
Producing one-side zinc electroplated strip having enhanced phosphating characteristics. Prior to electroplating, the non-electroplated side of the steel strip is cathodically pickled. Cathodic pickling minimizes staining and etching to the non-electropla...
02/28/1989
4726208Flat-rolled steel can stock manufacture
Composite-coated flat-rolled steel can stock processing and product for fabrication of sheet metal cans, in particular for three-piece, welded or cemented side seam cans. Single or double-reduced, low carbon, flat-rolled steel of a gage in the range of ab...
02/23/1988
4696724Surface treatment of high-nickel/iron alloy steel plate for LNG or LPG tanks
High nickel/iron alloy steel plate for LNG or LPG tanks having 35-37% nickel content is plated with nickel in an amount of 1 to 10 g/m2, and then chromated, except electro-chromating treatment, to obtain thereon a chromate film having a chromiu...
09/29/1987
4673663Catalyst support and process for preparing same
A catalyst support and process for preparing same are provided wherein a metal substrate is coated with a layer of adherent alumina with a layer of chromium interposed between the alumina catalyst support and the metal substrate. The catalyst supports of ...
06/16/1987
4547269Method of electrodepositing zinc on steel prior to phosphating
A process of electrodepositing zinc on steel wherein zinc-containing aqueous sulfuric acid electrolytes are used which contain one or more oxyacids of sulfur in which the sulfur has an oxidation number from +5 to +1. The phosphatizing of the resulting zin...
10/15/1985
4483907Manufacture of tinplate and tinplate containers
Tinplate container with externally welded seam is formed of electrolytic unreflowed tinplate with external tin coating of low coating mass (less than 2 g/m2); the solderability of such tinplate being comparable with conventional reflowed tinpla...
11/20/1984
4439283Zinc cobalt alloy plating
The present invention relates to an improved electroplating bath and process for producing semi-bright to bright zinc cobalt alloy electrodeposits on substrates, and particularly non-planar substrates, to provide enhanced resistance to salt spray corrosio...
03/27/1984
4437947Cold rolled steel strip having an excellent phosphatizing property and process for producing the same
A cold rolled steel strip having an excellent phosphatizing property and being capable of firmly bonding with a corrosion-resistant paint coating, comprises a cold rolled steel strip substrate having at least one descaled surface thereof which is substant...
03/20/1984
4386139Copper foil for a printed circuit and a method for the production thereof
Copper foil for a printed circuit, which comprises a copper layer and a vanadium-containing zinc layer formed on one side or each side of said copper layer, and a method for producing the copper foil. The bonding surface preferably contains a chromate sur...
05/31/1983
4376154Copper foil for a printed circuit and a method for the production thereof
A copper foil for a printed circuit comprising a copper layer having the bonding surface coated with a tin layer and having said tin layer coated with a vanadium-containing zinc layer which optionally may be given a chromic acid treatment. The invention a...
03/08/1983
4374902Nickel-zinc alloy coated steel sheet
An improved sheet steel suitable for the production of containers and the like has a thin composite coating of nickel and zinc plated on both sides thereof. The steel substrate may be flat rolled blackplate and the composite nickel-zinc coating may be pla...
02/22/1983
1    
 
Sign InRegister
Username  
Password   
forgot password?