Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8187452 | Method and system for magnetic recording media A patterned magnetic recording media and method thereof is provided. A recording layer comprises a continuous surface of more-noble elements and less-noble elements, such as CoXYZ, wherein X can be Pt, Pd, Ru, Rh, Ir, Os, or Au, wherein Y can be null or Cr, and wher... | 05/29/2012 |
| 7597792 | Magnetic recording disk having DTR patterned CSS zone A method and apparatus is described for gradually transitioning a slider from operation over a patterned data zone to landing on a patterned CSS zone. The ratio of raised area width to recessed area width of a pattern in a transition zone and/or CSS zone may be vari... | 10/06/2009 |
| 7507324 | Method for etching layers deposited on transparent substrates such as glass substrate A process for electrochemically etching a layer with electric conduction properties, of the doped metal oxide type, on a transparent substrate of the glass type, fitted with a mask capable of being removed after etching. The process brings at least one region to be ... | 03/24/2009 |
| 7368044 | Non-conformable masks and methods and apparatus for forming three-dimensional structures Electrochemical Fabrication techniques are used to modify substrates or to form multilayer structures (e.g. components or devices) from a plurality of overlaying and adhered layers. Masks are used to selectively etch or deposit material. Some masks may be of the con... | 05/06/2008 |
| 7361620 | Catalytically active layer A catalytically active layer that is used, for example, as an electrode for a solid electrolyte-based sensor element of a gas sensor for determining a gas component in a gas mixture. The catalytically active layer includes a metallic component, that includes a noble... | 04/22/2008 |
| 7357705 | Diamond disk A novel diamond disc is disclosed. The diamond disc comprises a plurality of diamond grains 2 bound on a disc. The diamond grains 2 are arranged in such a manner that a distance m1 between diamond grains 2 which are located on a common ro... | 04/15/2008 |
| 7332792 | Magnetic layer processing A dielectric layer is formed over a substrate comprising a semiconductor material. A magnetic layer is formed over the dielectric layer. The magnetic layer comprises an amorphous alloy comprising cobalt. ... | 02/19/2008 |
| 7291254 | Method for electrochemically forming structures including non-parallel mating of contact masks and substrates Treatment of substrates, formation of structures, and formation of multilayer structures using contact masks are disclosed where a non-parallel or non-simultaneous mating of various mask contact surfaces to a substrate surface occurs. Some embodiments involve bringi... | 11/06/2007 |
| 7244513 | Stain-etched silicon powder The present invention is for a porous silicon powder comprising silicon particles wherein the outermost layers of said particles are porous. The present invention is also directed to a method of making this porous silicon powder using a stain etch method. The presen... | 07/17/2007 |
| 7235168 | Method for electrochemically forming a hydrodynamic bearing surface A method of forming a hydrodynamic bearing surface on a workpiece is provided. The method comprises electrochemically etching away all material in a region of the surface, except for portions of the region defined by a land pattern on an etching cathode. The step of... | 06/26/2007 |
| 7166207 | Non-mechanical method of removing material from the surface of a golf club head A highly accurate, efficient, and non-mechanical method of removing material from the surface of a golf club head using the principles of electrolysis. The process generally includes positioning at least one electrode in close proximity to a portion of a rear surfac... | 01/23/2007 |
| 7150820 | Thiourea- and cyanide-free bath and process for electrolytic etching of gold An aqueous thiourea-free gold etching bath for electrolytically etching gold from a microelectronic workpiece. One embodiment of the aqueous thiourea-free bath contains: (a) about 0.5–1.5 M iodide; (b) about 0.1–0.3 M sulfite; and (c) about 1.0–3.0 g/L wetting... | 12/19/2006 |
| 7147695 | Microfabricated microconcentrator for sensors and gas chromatography Devices for enhancing the sensitivity of a microsensor or any other micro device by providing on-line preconcentration. Microconcentrators that can be integrated with a sensor or a micromachined GC to enhance the signal to noise ratio can include a miniaturized sorb... | 12/12/2006 |
| 7144119 | System and method for programmable illumination pattern generation An apparatus providing programmable illumination pattern generation for the manipulation of colloidal particulates and biomolecules in suspension between electrodes, is disclosed. The apparatus implements LEAPS (Light-controlled electrokinetic assembly of particles ... | 12/05/2006 |
| 7063780 | Method for indirect-electrification-type continuous electrolytic etching of metal strip and apparatus for indirect-electrification-type continuous electrolytic etching The present invention provides a method for indirect-electrification-type continuous electrolytic etching of a metal strip suitable for producing a low-core-loss, grain-oriented silicon steel sheet not susceptible to the deterioration of core loss after stress-relie... | 06/20/2006 |
| 7057704 | System and method for programmable illumination pattern generation An apparatus providing programmable illumination pattern generation for the manipulation of colloidal particulates and biomolecules in suspension between electrodes, is disclosed. The apparatus implements LEAPS (Light-controlled electrokinetic assembly of particles ... | 06/06/2006 |
| 6949410 | Flip chip in leaded molded package and method of manufacture thereof A chip device that includes a leadframe, a die and a mold compound. The backside of the die is metallized and exposed through a window defined within a mold compound that encapsulates the die when it is coupled to the leadframe. Leads on the leadframe are coupled to... | 09/27/2005 |
| 6940147 | Integrated inductor having magnetic layer A dielectric layer is formed over a substrate comprising a semiconductor material. A magnetic layer is formed over the dielectric layer. The magnetic layer comprises an amorphous alloy comprising cobalt. ... | 09/06/2005 |
| 6843929 | Accelerated etching of chromium A method and associated structure for increasing the rate at which a chromium volume is etched when the chromium body is contacted by an acid solution such as hydrochloric acid. The etch rate is increased by a metallic or steel body in continuous electrical contact ... | 01/18/2005 |
| 6802954 | Creation of porous anode foil by means of an electrochemical drilling process The present invention is directed to a method of creating porous anode foil for use in multiple anode stack configuration electrolytic capacitors, producing a pore structure that is microscopic in pore diameter and spacing, allowing for increased energy density with... | 10/12/2004 |
| 6790340 | Method and apparatus for radiation assisted electrochemical etching and etched product An electrochemical etching system has an etching bath for holding an n-type silicon substrate with a first surface of the substrate in contact with hydrofluoric acid, an electrode positioned in the hydrofluoric acid, a power source having a positive pole connected t... | 09/14/2004 |
| 6770188 | Part fabricating method A structural body material layer is formed directly on a base substrate or via a sacrificing layer or a peeling layer, a groove is fabricated electrochemically along an outer configuration shape of a part constituting an object at the structural body material layer ... | 08/03/2004 |
| 6736956 | Non-uniform etching of anode foil to produce higher capacitance gain without sacrificing foil strength The present invention is directed to a method of etching anode foil in a non-uniform manner which increases the overall capacitance gain of the foil while retaining foil strength. In particular, by using a mask to protect a mesh grid of the foil from further etching... | 05/18/2004 |
| 6676826 | Method for production of a rotor for centrifugal compressors A method for production of a rotor for centrifugal compressor, wherein the said rotor is produced from a monolithic disc, which is provided with a central hole. The method consists of use, within an isolating medium, of at least one first electrode which ... | 01/13/2004 |
| 6592743 | Production of gas separators for use in fuel cells and equipment used therefor A method for producing a separator integrated with a gas flow channel of fuel cells efficiently at low costs without deteriorating processing accuracy and the like. A plane-facing electrode nozzle 30 is placed oppositely to the face to be processed, which... | 07/15/2003 |
| 6582584 | Method for enhancing heat transfer inside a turbulated cooling passage A method of enhancing heat transfer and cooling efficiency in a cooling passage includes forming a plurality of turbulator rings in the passage, the rings projecting inwardly, substantially perpendicular to a cooling flow direction in the passage; and usi... | 06/24/2003 |
| 6544403 | Method for manufacturing fluid bearing A method for manufacturing a fluid bearing is provided. A mask member having at least two sets of grooves provided at least two places along an axial direction is affixed to an outer surface of an electrode section of a fluid bearing manufacturing tool. E... | 04/08/2003 |
| 6532647 | Manufacturing method of composite type thin-film magnetic head A manufacturing method of a composite type thin-film magnetic head with a reading head element and an inductive writing head element, includes a step of forming the reading head element and its lead conductor layers on a first insulation layer, a step of ... | 03/18/2003 |
| 6514400 | Method for producing a fuel cell separator A method for producing a separator in which a recessed gas path is formed. Depth fluctuations of the gas path can be reduced. The gas path having plural depths or gradation can be formed easily. An electrically conductive member 3, as a separator, and a p... | 02/04/2003 |
| 6491808 | Electrolytic etching method, method for producing photovoltaic element, and method for treating defect of photovoltaic element An electrolytic etching method for etching treating an object to be etched by an electrochemical reaction through an electrolyte between the object to be etched and an etching electrode, where the contact angle of the electrolyte to the object to be etche... | 12/10/2002 |
| 6423241 | Ink jet print head and a method of producing the same Disclosed is an ink jet print head and a method of producing the same, the ink jet print head including a plurality of ink ejecting orifices which are formed with a desired shape and a uniform size by only once using metal plating technique, having an exc... | 07/23/2002 |
| 6398943 | Process for producing a porous layer by an electrochemical etching process A porous layer produced from silicon, germanium or aluminum by applying a wedge-shaped mask to the surface of the layer and by controlled elecrochemical etching along the mask.... | 06/04/2002 |
| 6387242 | Method and tool for electrochemical machining A machining process for forming a raised area in a wall of a predrilled hole includes distributing electrolyte via a workpiece internal cavity to a number of predrilled holes. Next, position a template including at least one electrode coated with an insul... | 05/14/2002 |
| 6331238 | Method of patterning a substrate with an atomic mask There is provided a method of patterning a substrate with an atomic mask having a mask substrate and first atoms adsorbed on the mask substrate, the first atoms forming a mask pattern having a one-atomic thickness, including the steps, in sequence, of (a)... | 12/18/2001 |
| 6328876 | Method for producting a filter A method for producing a filter includes the steps of providing a blank of etchable semiconductor material having a first side and a second side and affixing a holding element to the blank. The holding element is chemically resistant to an etching solutio... | 12/11/2001 |
| 6264822 | Method for electrochemical machining An electrode used as a tool in an electrochemical machining process to generate raised areas or ridges in the walls of a predrilled hole in an electrically conductive workpiece has an electrically conductive cylinder partially coated with an electrically ... | 07/24/2001 |
| 6245212 | Method of providing a metal bearing component with a pattern by electrochemical machining and an apparatus therefor An apparatus and method for electrochemically machining a texture on a metal bearing component. A ribbon is provided between an electrode and the metal bearing component. The ribbon is flexible, substantially non-conductive and provided with holes. While ... | 06/12/2001 |
| 6224738 | Method for a patterned etch with electrolytically grown mask This present invention is directed to a method of etching anodic foil for electrolytic capacitors and provides a method of electrolytically growing a porous oxide mask on a surface of a high purity etchable strip of anodic foil for forming etch tunnels at... | 05/01/2001 |
| 6139716 | Submicron patterned metal hole etching A wet chemical process for etching submicron patterned holes in thin metal layers using electrochemical etching with the aid of a wetting agent. In this process, the processed wafer to be etched is immersed in a wetting agent, such as methanol, for a few ... | 10/31/2000 |
| 6021833 | Manufacturing line for multi-layered printed circuit boards A manufacturing line including a plurality of processing sections disposed in a series for manufacturing multi-layered printed circuit boards by continuously conveying and processing boards through the plurality of processing sections, in which the plural... | 02/08/2000 |
