| 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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| 06/30/1999 | EP0925381A1 Surface oxidation of a titanium or titanium alloy article |
| 06/30/1999 | CN2326611Y Heat treatment apparatus |
| 06/29/1999 | US5916383 Method of shot peening a hardened metal product with shot having high hardness |
| 06/29/1999 | US5916378 Method of reducing metal contamination during semiconductor processing in a reactor having metal components |
| 06/29/1999 | US5916377 Packed bed carburization of tantalum and tantalum alloy |
| 06/24/1999 | WO1999031291A2 Plasma boronizing |
| 06/24/1999 | WO1999020086A3 Process for forming adherent coatings using plasma processing |
| 06/24/1999 | DE19758347A1 Pure magnetite layer is produced on an iron surface using a low temperature plasma |
| 06/23/1999 | CN1220706A Polishing-finished stainless steel sheet having excellent stain removability, and production method thereof |
| 06/17/1999 | WO1999029435A2 Modification of surfaces in order to increase surface tension |
| 06/16/1999 | CN2324160Y Ion chemical thermal-treatment equipment |
| 06/15/1999 | US5911841 Steel having excellent corrosion resistance |
| 06/10/1999 | DE19854726A1 Method for heat treatment of steel |
| 06/10/1999 | DE19753848A1 Modifikation von Oberflächen zur Steigerung der Oberflächenspannung Modification of surfaces to increase the surface tension |
| 06/09/1999 | EP0920541A1 Method for making parts usable in a fuel environment |
| 06/08/1999 | US5910223 Carbides dispersed in a predominantly lower bainitic matrix on selected surfaces |
| 06/03/1999 | WO1999027148A1 Steel article having high hardness and improved toughness and process for forming the article |
| 06/03/1999 | WO1999027147A2 Wear-resistant, mechanically highly stressed and low-friction boundary coating construction for titanium or the alloys thereof and a method for producing the same |
| 06/02/1999 | EP0871565A4 Process for preparing an insulated multilayer structure |
| 06/02/1999 | CN1218116A Heat treatment for coloring vibration absorbing disc and holding disc for clutch parts of vehicle |
| 06/01/1999 | US5908671 Thin amorphous films |
| 05/27/1999 | DE19751337A1 Surface layer structure for titanium and alloys |
| 05/26/1999 | CN1217438A Metal-radical gradient material with lubricating and wear-resisting functions |
| 05/25/1999 | US5906866 High speed hydrogen reduction of tungsten hexafluoride without the use of silane to form a tungsten film |
| 05/25/1999 | US5906688 Heating to oxidize stainless steel surface preteated by purging surface moisture using anhydrous inert gas |
| 05/20/1999 | WO1999025012A1 ELIMINATION OF THE TITANIUM NITRIDE FILM DEPOSITION IN TUNGSTEN PLUG TECHNOLOGY USING PE-CVD-Ti AND IN-SITU PLASMA NITRIDATION |
| 05/20/1999 | WO1999024632A1 s METAL-BASED GRADIENT COMPOSITE MATERIAL HAVING GOOD LUBRICATION AND WEAR RESISTANCE PROPERTY, THE PRODUCTION AND THE USE OF THE SAME |
| 05/20/1999 | DE19750114A1 Gas carburising of steel is carried out using a mixture containing a vegetable oil |
| 05/19/1999 | EP0828688B1 Aluminium nitride granules |
| 05/14/1999 | WO1999023277A1 Product designed to be subjected to the effects of hot gas and method for producing a coating for this product |
| 05/12/1999 | EP0722510B1 Method of forming a titanium alloy product |
| 05/11/1999 | US5902418 Method for manufacturing CRT interior parts |
| 05/06/1999 | WO1999021640A1 Composite materials for membrane reactors |
| 05/06/1999 | DE19850155A1 Hemispherical slide piece for swing disc compressor |
| 05/04/1999 | US5900559 Excellent frictional charactristics, scuffing resistance, easy to work, stable quality; use in gear transmissions |
| 05/04/1999 | US5900126 Magnetic recording disks |
| 04/29/1999 | WO1999020809A1 Deposition of coatings using an atmospheric pressure plasma jet |
| 04/29/1999 | WO1999020808A1 Method for making a composite metal product |
| 04/28/1999 | EP0910682A1 Surface treatment of rolling element bearing steel |
| 04/28/1999 | CN1043159C Ion bombarding furnace for metal surface intensification |
| 04/22/1999 | WO1999020086A2 Process for forming adherent coatings using plasma processing |
| 04/22/1999 | WO1999019139A1 Bumped substrate assembly |
| 04/21/1999 | EP0909832A1 Process for adjusting the composition of a metallic product |
| 04/14/1999 | EP0908530A1 Blade for a saw or a knife and method of manufacturing |
| 04/14/1999 | EP0908529A1 Process for manufacturing a high-temperature fuel cell and a fuel cell so produced |
| 04/14/1999 | CN1214086A Titanium or titanium alloy member and surface treatment method |
| 04/07/1999 | CN1213411A Lubricated steel sheet |
| 04/06/1999 | US5891395 Chemical switch for detection of chemical components |
| 03/31/1999 | EP0905271A1 Titanium or titanium alloy member and surface treatment method therefor |
| 03/31/1999 | EP0614715B1 Wheel speed measuring gear and method of manufacturing the same |
| 03/31/1999 | CN1212734A Misted precursor deposition apparatus and method with improved mist and mist flow |
| 03/29/1999 | CA2212404A1 Apparatus for degassing aluminum castings and apparatus for case hardening with non-cyanide salt |
| 03/25/1999 | WO1999014400A1 Corrosion-resistant coatings for steels used in bromide-based absorption cycles |
| 03/24/1999 | EP0757884A4 Method of forming a fluorinated silicon oxide layer using plasma chemical vapor deposition |
| 03/24/1999 | CN1211632A Process for manufacturing carburized or carbonitrided steel component, and steel for manufacture of this component |
| 03/18/1999 | WO1999013125A1 A device, a drill member and a method for masking the member at thermo chemical surface treatment |
| 03/18/1999 | CA2303332A1 A device, a drill member and a method for masking the member at thermo chemical surface treatment |
| 03/17/1999 | EP0902101A1 Metallic material or film having fluorinated surface layer, and fluorination process |
| 03/17/1999 | EP0902098A1 Process for producing a galvanized alloyed steel sheet without a dzeta phase on the surface |
| 03/17/1999 | CN1210898A Process for producing cement nail by using low carbon steel and cementation furnace |
| 03/16/1999 | US5883016 Apparatus and method for hydrogenating polysilicon thin film transistors by plasma immersion ion implantation |
| 03/09/1999 | US5881356 Method for the case-hardening of higher-molybdenum-alloy sintered steels |
| 03/09/1999 | US5879745 Method for stabilizing a patina layer |
| 03/09/1999 | US5879519 Uniform and consistent deposition |
| 03/04/1999 | WO1999010557A1 Method of production of rolling bearing |
| 03/04/1999 | WO1999010556A1 Method and device for joint oxydation and heat treatment of workpieces |
| 03/03/1999 | EP0899355A1 Method of case hardening a roller chain pin |
| 03/03/1999 | CN1209513A Roller-chain pin after being coated |
| 03/03/1999 | CN1209467A Salt-bath low-temp. electrolytic sulfurizing for steel-iron components |
| 03/03/1999 | CN1209466A Two-stage carbonitriding technology for gear |
| 03/03/1999 | CN1042352C Ornament |
| 02/24/1999 | CN1208777A Even and glazing ionic nitriding for steel of mould ejector pin |
| 02/23/1999 | US5874014 Durable plasma treatment apparatus and method |
| 02/17/1999 | EP0896554A1 Ferritic nitrocarburization process for steel balls |
| 02/16/1999 | US5871806 Carburizing the object under a carburizing atmosphere in a carburizing zone, cooling with gas, and nitriding with nitriding gas in nitriding zone |
| 02/10/1999 | EP0895547A1 Corrosion resistant carbon steel |
| 02/09/1999 | US5870649 Image forming apparatus having an intermediate transfer belt with variable moving speed immediately following toner development |
| 02/09/1999 | US5869195 A protective inorganic pearlite surface film; chemical resistance |
| 02/09/1999 | US5868879 Mixed oxide ceramic product made from a metal alloy of titanium, zirconium and/or hafnium and niobium, tantalum or vanadium; passivation; adherent, monolithic |
| 02/09/1999 | US5868878 Forming an ionized gas plasma around the workpiece |
| 02/09/1999 | US5868871 A preheating chamber, six carburizing chambers, a cooling chamber, a reheating chamber, a quenching chamber are placed around an intermediate chamber having a transport device; high-frequency induction heating technique |
| 02/04/1999 | WO1999005340A1 Case hardening of steels |
| 02/02/1999 | US5865908 Composite diffusion type nitriding method, composite diffusion type nitriding apparatus and method for producing nitride |
| 02/02/1999 | US5865021 Coated roller chain pin |
| 01/28/1999 | WO1999004056A1 Process for the treatment of austenitic stainless steel articles |
| 01/28/1999 | WO1999004055A1 Method of case hardening |
| 01/27/1999 | CN2305407Y Suspending arranged rack for nitriding furnace |
| 01/27/1999 | CN1206051A Application of rare earths in gaseous nitridation and nitrogen-carbon cocementing process |
| 01/21/1999 | WO1999002337A1 High temperature passivation of rare earth magnets |
| 01/21/1999 | DE19730372A1 Cleaning and depassivating metal surface to be nitrided or carbonitrided |
| 01/20/1999 | EP0891957A1 Corrosion-resistant member, wafer-supporting member, and method of manufacturing the same |
| 01/19/1999 | US5861190 Arrangement for growing a thin dielectric layer on a semiconductor wafer at low temperatures |
| 01/14/1999 | DE19829825A1 Carburisation and quenching of thin plate elements |
| 01/13/1999 | EP0890656A1 Process for surface nitriding of metallic workpieces |
| 01/13/1999 | EP0890653A1 Process for manufacturing of articles from carburized or carbonitrided steel and steel for the manufacturing of said articles |
| 01/13/1999 | CN1204724A 活塞环 Piston Ring |
| 01/12/1999 | US5859404 Method and apparatus for plasma processing a workpiece in an enveloping plasma |
| 01/12/1999 | US5858480 Ceramic-based substrate for coating diamond and method for preparing substrate for coating |
| 01/12/1999 | US5858122 Materials capable of readily developing natural patina and process for producing the same |
| 01/07/1999 | WO1999000527A1 Method of oxidizing inner surface of ferritic stainless steel pipe |