| Patents for C23C 8 - 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 (10,951) |
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| 06/04/2002 | US6398420 Obtained by working a material made of iron alloy steel having a chromium content of 5-22 % by weight into a predetermined shape, and then subjecting the material to heat treatment followed by finishing |
| 05/30/2002 | US20020062883 Contacting surface of liquid gallium or gallium alloy with aqueous solution of a halogenic acid to cause dissolution of gallium oxide; adding surfactant and water; allowing uniform passivating oxide layer to form |
| 05/30/2002 | US20020062882 For use in front and rear axles of automobiles, durability, for use in industrial machines |
| 05/29/2002 | EP1209321A2 Thermally-stabilized thermal barrier coating and process therefor |
| 05/29/2002 | CN1351186A Manufacture of electric steel plates with high magnetic flux density orientation |
| 05/29/2002 | CN1085733C Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| 05/29/2002 | CN1085555C Equipment and method to exchaust nitridation waste gas and recover residual ammonia |
| 05/28/2002 | US6395106 Conversion coatings prepared or treated with calcium hydroxide solutions |
| 05/28/2002 | US6395104 Method of producing unidirectional electromagnetic steel sheet having excellent film characteristics and magnetic characteristics |
| 05/23/2002 | WO2002041675A1 Method for manufacturing circuit board |
| 05/23/2002 | WO2002040731A1 STEEL PLATE TO BE PRECIPITATING TiN+CuS FOR WELDED STRUCTURES, METHOD FOR MANUFACTURING THE SAME, WELDING FABRIC USING THE SAME |
| 05/23/2002 | DE10056241A1 Low pressure turbine comprises an assembly of stationary guide vanes having a hydrophobic coating with a smooth surface and rotating blades |
| 05/22/2002 | CN1349876A Driving ring and its machining process |
| 05/22/2002 | CN1085259C Roller-chain pin after being coated |
| 05/21/2002 | US6391124 Non-heat treated, soft-nitrided steel parts |
| 05/20/2002 | CA2362106A1 Surface chemical treatment for liquid gallium or gallium alloy mirrors |
| 05/14/2002 | US6387379 Biofunctional surface modified ocular implants, surgical instruments, medical devices, prostheses, contact lenses and the like |
| 05/10/2002 | WO2002036844A2 Alpha al2o3 and ti2o3 protective coatings on aluminide substrates |
| 05/07/2002 | US6383555 Misted precursor deposition apparatus and method with improved mist and mist flow |
| 05/07/2002 | US6383297 Method and device for joint oxydation and heat treatment of workpieces |
| 05/02/2002 | WO2002035221A1 Method for chlorine plasma modification of silver electrodes |
| 05/02/2002 | WO2002034957A1 Sintered sprocket |
| 05/02/2002 | WO2002034435A1 Improved passivating etchants for metallic particles |
| 05/02/2002 | US20020051886 Coated cutting insert |
| 05/02/2002 | US20020050308 Heat resistant carburized rolling bearing component and manufacturing method thereof |
| 05/02/2002 | US20020050307 Method for high concentration carburizing and quenching of steel and high concentration carburized and quenched steel part |
| 05/02/2002 | EP1201781A2 Non-stainless steel nitrided piston ring, and method of making the same |
| 05/02/2002 | EP1201778A2 Low density oxidation resistant superalloy materials capable of thermal barrier coating retention without a bond coat |
| 05/01/2002 | CN1084066C Apparatus for formation of excited or unstable gaseous molecules and uses of such apparatus |
| 04/30/2002 | US6379473 Method of manufacturing laminated ring using molten salt composition |
| 04/25/2002 | DE10049063C1 Production of wear-resistant boride layers on iron material comprises providing iron material with thin metallic layer before boriding to allow diffusion of boron atoms |
| 04/25/2002 | DE10048589A1 Switching device used for a vehicle gear system comprises a gear shift lever with a nitride layer produced by plasma nitriding on its surface |
| 04/24/2002 | EP1198619A2 Bond coats for turbine components and method of applying the same |
| 04/24/2002 | EP1198606A1 Protective iron oxide scale on heat-treated irons and steels |
| 04/24/2002 | EP1097248B1 Case hardened steel with high tempering temperature, method for obtaining same and parts formed with said steel |
| 04/24/2002 | CN1346412A Method of producing thin, poorly soluble coatings |
| 04/24/2002 | CN1345998A Wearing-resistant rod piece for railway switch and making method thereof |
| 04/23/2002 | US6375762 Base material for producing blades for circular saws, cutting-off wheels, mill saws as well as cutting and scraping devices |
| 04/23/2002 | US6374704 Steel-tooth bit with improved toughness |
| 04/18/2002 | WO2002031893A1 Epitaxial oxide films via nitride conversion |
| 04/18/2002 | US20020045053 Where the surface has an original chemical composition that varies with depth and at least a portion of the surface is missing from the substrate |
| 04/18/2002 | US20020043666 Oxidizing silicon substrate; depositing metal or alloy; annealing to form silicate |
| 04/18/2002 | US20020043479 Increasing production in hydrocarbon conversion processes |
| 04/18/2002 | US20020043300 An aluminum or alloy substrate is subjected to a heating treatment in vacuum, subsequently subjected to heating andnitriding treatment environment containing nitrogen gas held in porous bodies, bring in contact with the environment |
| 04/18/2002 | CA2425757A1 Epitaxial oxide films via nitride conversion |
| 04/17/2002 | EP1196938A2 Apparatus and method for exposing a substrate to plasma radicals |
| 04/17/2002 | CN1345081A Treatment system of semiconductor and method of controlling humidity |
| 04/17/2002 | CN1083018C Passivation of metallic product of super alloy based on nickel and iron |
| 04/16/2002 | US6372303 Method and device for vacuum-coating a substrate |
| 04/11/2002 | WO2000068139A9 Composite materials for membrane reactors |
| 04/11/2002 | US20020042656 Method of surface oxidizing zirconium and zirconium alloys and resulting product |
| 04/11/2002 | US20020040847 Method of forming a dielectric film |
| 04/11/2002 | US20020040743 Rolling shaft |
| 04/10/2002 | EP1195450A2 Semiconductor processing system and method for controlling moisture level therein |
| 04/10/2002 | CN1344333A Power supply for discharge surface treatment and discharge surface treatment method |
| 04/09/2002 | US6368425 Implanting ions below air bearing surface of recording head; improved tribology between air bearing surface of magnetic recording head and magnetic recording medium; improved wear and corrosion resistance |
| 04/09/2002 | CA2077205C Titanium carbonitride coated stratified substrate |
| 04/04/2002 | US20020038679 Surface treatment process for mechanical parts subject to wear and corrosion |
| 04/04/2002 | US20020038678 Method to produce grain-oriented electrical steel sheet having high magnetic flux density |
| 04/03/2002 | EP1193748A1 Silicon oxidation method for reduction of the charge trap concentration at the silicon-oxide interface |
| 04/03/2002 | EP1193413A1 Rolling support device and method for manufacturing the same |
| 04/03/2002 | EP1192400A1 Corrosion resistant container and gas delivery system |
| 04/02/2002 | US6365235 Streams of active particles are created, these being directed onto the surface which is to be treated, and caused to interact with the surface |
| 04/02/2002 | US6365227 High-pressure steel cylinder having an electroless nickel-phosphorous layer which passivates the steel interior; high-purity, corrosive, liquefied gas |
| 04/02/2002 | US6364965 Heating in vacuum |
| 03/28/2002 | WO2002025231A1 Surface-hardened precision weight and process of making same |
| 03/28/2002 | WO2002025068A1 Sliding member and method of manufacturing thereof |
| 03/28/2002 | US20020037120 Rolling bearing device |
| 03/28/2002 | US20020036030 Contains boron-releasing substances, activating substances and reminder of inert, refractory etenders, water and contains as additives: calcium carbonate and/or lithium carbonate, alkali/alkaline metal nitrite and borate |
| 03/28/2002 | DE10061398C1 Production of metallic strips for deposition of biaxially textured layers of superconductor material comprises forming alloy containing nickel, copper, silver or their alloys and additive, rolling, recrystallization annealing and annealing |
| 03/27/2002 | EP1190790A1 Die-casting valve |
| 03/27/2002 | EP1190187A1 Cvt/ivt component |
| 03/27/2002 | CN1342217A Metal material having formed thereon chromium oxide passive film and method for producing the same, and parts contacting with fluid and system for supplying fluid and exhausting gas |
| 03/26/2002 | US6361628 Method for making a composite metal product |
| 03/26/2002 | CA2058682C Low melting point metal direct nitriding process |
| 03/21/2002 | WO2002022910A2 Surface on a stainless steel |
| 03/21/2002 | WO2002022908A2 Process of treating stainless steel |
| 03/21/2002 | WO2002022905A2 Stainless steel and stainless steel surface |
| 03/21/2002 | WO2001079579B1 Method for treating the surface of a part and resulting part |
| 03/21/2002 | WO2001064374A3 Nitrided valve metals and processes for making the same |
| 03/21/2002 | US20020034633 Film is mixed phase of aluminum nitride and metallic aluminum; expansion coefficient closer to aluminum substrate therefore less peeling during heat-cycling |
| 03/21/2002 | US20020033206 Hot rolling, cold rolling, crystallization, decarboxylation |
| 03/14/2002 | US20020029826 Surface treated steel material |
| 03/14/2002 | DE10139123A1 Linked chain incorporating discs with nitrogen enriched surface layers, notably for the adjustable and continuous conical plates of reduction gear mechanisms |
| 03/12/2002 | CA2252840C Lubricated boride surfaces |
| 03/06/2002 | CN1338529A Surface treatment of mechanical parts with wear and corrosion simultaneously |
| 03/06/2002 | CN1080318C Production of grain oriented silicon steel sheet |
| 02/28/2002 | WO2001065599A3 Nitride layer forming methods |
| 02/28/2002 | US20020025691 Flash memory device and a fabrication process thereof, method of forming a dielectric film |
| 02/28/2002 | DE10038887A1 Production of a silicon nitride layer used in the production of a semiconductor device comprises reacting silicon wafers with ammonia gas in two separate chambers |
| 02/27/2002 | CN1337288A Manufacture of timing gear for engine in light vehicle |
| 02/21/2002 | WO2002014566A1 Nickel-based alloy product and process for producing the same |
| 02/21/2002 | US20020020948 Gas hardening cell |
| 02/21/2002 | US20020020476 Method of surface treatment of titanium metal |
| 02/21/2002 | US20020020471 Hardening protection compositions for partial carburization of metallic components |
| 02/21/2002 | US20020020194 Manufacture of optical waveguide substrate |
| 02/21/2002 | DE10038481A1 Surface treatment process for producing an aluminum oxide layer on aluminum-containing iron-based alloys and on aluminum-containing steels for corrosion protection |
| 02/20/2002 | EP1180552A1 Method for surface treatment of mechanical pieces subjected to wear and corrosion |
| 02/20/2002 | EP1180551A2 Bulk compound for protection against hardening for the selective carburizing of metallic workpieces |
| 02/20/2002 | CN1336445A Treatment method and special treating equipment for forming nanometer structure |