Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7297227 | Method of making sheet electrode for electric double layer capacitor and roller rolling machine suitable for use therein A sheet electrode with a predetermined thickness for an electric double layer capacitor is made by carrying out a roller rolling step in which a long sheet intermediate is made from a material containing a carbonaceous powder, a conductive assistant and a binder and... | 11/20/2007 |
| 7198276 | Adaptive electrostatic pin chuck Disclosed is an electrostatic chuck and system for maintaining a device flat within the electrostatic chuck. The electrostatic chuck has a plate, height adjustment mechanisms connected to the plate; and electrostatic chuck pins connected to the height adjustment mec... | 04/03/2007 |
| 7171267 | Reforming wet-tantalum capacitors in implantable defibrillators and other medical devices Miniature defibrillators and cardioverters detect abnormal heart rhythms and automatically apply electrical therapy to restore normal heart function. Critical components in these devices are aluminum electrolytic capacitors, which store and deliver one or more life-... | 01/30/2007 |
| 7131988 | Reforming wet-tantalum capacitors in implantable medical devices Miniature defibrillators and cardioverters detect abnormal heart rhythms and automatically apply electrical therapy to restore normal heart function. Critical to this function, aluminum-electrolytic capacitors store and deliver life-saving bursts of electric charge ... | 11/07/2006 |
| 7088431 | Lithographic apparatus and device manufacturing method A lithographic apparatus includes an illumination system for providing a beam of radiation, an article support for supporting a flat article to be placed in a beam path of the beam of radiation on the article support, an electrostatic clamp for clamping the article ... | 08/08/2006 |
| 7077932 | Method of making sheet electrode for electric double layer capacitor and roller rolling machine suitable for use therein A sheet electrode with a predetermined thickness for an electric double layer capacitor is made by carrying out a roller rolling step in which a long sheet intermediate is made from a material containing a carbonaceous powder, a conductive assistant and a binder and... | 07/18/2006 |
| 7057879 | Polarizable electrode for electric double-layer capacitor, process for producing the polarizable electrode and process for producing the electric double-layer capacitor By using the polarized electrode for electric double layer capacitor of the present invention, which is produced by mixing powdery activated carbon with a binder, and is characterized by the concentration of an organic compound being not more than 300 (ppm), the amo... | 06/06/2006 |
| 7019820 | Lithographic apparatus and device manufacturing method A lithographic apparatus includes an illumination system for providing a beam of radiation and an article support for supporting an article to be placed in a beam path of the beam of radiation on the article support. The article support has a plurality of supporting... | 03/28/2006 |
| 7017652 | Method and apparatus for transferring heat from a substrate to a chuck A chuck method of and apparatus (50, 150, 300) for supporting a substrate (W) during processing of the substrate, where the substrate has a lower surface (WL). The apparatus facilitates heat transfer away from the substrate during processing of the... | 03/28/2006 |
| 7006346 | Positive electrode of an electric double layer capacitor Provided in the present invention is a positive electrode for use in an Electric Double Layer (EDL) Hybrid Electrochemical Capacitor (HEC). Embodiments of the invention can be further adapted produce an EDL HEC with a high specific energy value and a high maximum vo... | 02/28/2006 |
| 6917512 | Oil-impregnated film capacitor and preparation method thereof Different from conventional so-called mix-type film capacitors involving several disadvantages, in which the dielectric layers consist of a combination of a dielectric plastic resin film and an insulating paper sheet, the invention provides an all-film oil-impregnat... | 07/12/2005 |
| 6815085 | Printed circuit board capacitor structure and method A capacitive element for a circuit board or chip carrier is formed from a pair of conductive sheets having a dielectric component laminated therebetween. The dielectric component is formed of two or more dielectric sheets, at least one of which can be partially cure... | 11/09/2004 |
| 6628503 | Gas cooled electrostatic pin chuck for vacuum applications An electrostatic pin chuck consisting of an annular array of gas inlets, located towards the periphery of the chuck, for providing a uniform distribution of cooling gas to a wafer held by the chuck. This uniform distribution of cooling gas results in a un... | 09/30/2003 |
| 6452776 | Capacitor with defect isolation and bypass Capacitors having defect isolation and bypass characteristics. The capacitors include a first electrode, a second electrode containing electrode segments, and a dielectric layer interposed between the first electrode and second electrode. The electrode se... | 09/17/2002 |
| 6414600 | Ground check system for delta-flex test handler There is provided a ground check system used with an input module and/or sort module of a test handler for checking automatically grounding wires associated with moving parts thereof. The ground check system includes a sensing circuit which is responsive ... | 07/02/2002 |
| 5719741 | Zinc-deposited base material for metallized capacitors and method of manufacture thereof When forming a zinc-deposited base material for metallized capacitors, a primer layer for zinc-deposition made from at least one compound selected from the group comprised of an oxide of silicon, titanium and zirconium is formed on at feast one side surfa... | 02/17/1998 |
| 5359487 | Capacitor assembly of the wound-foil type This capacitor assembly includes inner and outer sheets of metal foil constituting first and second electrodes, respectively, of the assembly and dielectric film interposed between the foil sheets and insulating the foil sheets from each other when the ca... | 10/25/1994 |
| 5349493 | Electrical capacitor An electrical film capacitor in which a pair of metal film electrodes and a porous layer are wound into an assembly, and in which the porous layer serves to wick a liquid dielectric into the wound assembly. The liquid dielectric is an adipic acid ester su... | 09/20/1994 |
| 5157586 | Separator for electrolytic capacitors, and capacitors made therewith A separator for electrolytic capacitors, the separator being constituted by a single sheet of paper made up of at least two asymmetrical superposed layers: one of the layers having high thickness and low density, the other layer having low thickness and h... | 10/20/1992 |
| 4914548 | Electrolytic paper for electrolytic capacitor An electrolytic paper for an electrolytic capacitor interposed between an anode foil and a cathode foil is made of cellulose fiber induced with organic substituent. The inducing reaction of the organic substituent is selected from etherification for hydro... | 04/03/1990 |
| 4716084 | Oil-impregnated capacitor An oil-impregnated capacitor made by winding at least one plastic film impregnated with an electrical insulating oil comprising 1-phenyl-1-methylphenylethane in which 1-phenyl-1-(4-methylphenyl)ethane and 1-phenyl-1-(2-methyl)ethane are present in amounts... | 12/29/1987 |
| 4614994 | Electrical wound capacitor with internal series connection An electrical wound capacitor having an internal series connection is composed of wound paper tapes which are provided with regerably thin metal layers. The paper tape used as contacted electrode comprises two metal layers that are connected to front cont... | 09/30/1986 |
| 4593343 | Electrolytic capacitor and spacer therefor An aluminum electrolytic capacitor has a wound foil section with cellulosic spacer material, interleaved between and contiguously wound with the foils, loaded with 1 to 6 wt % of a synthetic hydrotalcite. The spacer material may be Manila, Kraft or Benare... | 06/03/1986 |
| 4591783 | Capacitive voltage transformer In this voltage transformer for compressed-gas insulated high-voltage systems, between a straight internal conductor (1), which is located in a gas space (4) and forms a high-voltage electrode, and a low-voltage electrode (3) surrounding the internal cond... | 05/27/1986 |
| 4580191 | Discharge capacitor of high energy and high direct voltage A discharge capacitor having an energy density of at least 0.4 J/cm3, perferably for defibrillators, comprising at least one plastic dielectric foil and two electrically conductive armatures (4) separated by the plastic foil is rolled up and en... | 04/01/1986 |
| 4578738 | Anode structure for electrolytic fibre capacitors and method for manufacturing the same The invention relates to a method and apparatus for making an electrolytic capacitor formed from thin fibers coated with a valve metal and interconnected in an end region by insulating resin material.... | 03/25/1986 |
| 4562511 | Electric double layer capacitor This invention relates to electric double layer capacitor utilizing electric double layer formed at interface between polarizable electrode and electrolyte, and carbon fibers or activated carbon fibers are used as polarizable electrode (17), and on the po... | 12/31/1985 |
| 4129897 | Modular mounting apparatus for substrate means bearing planar circuit means A modular mounting apparatus for substrate means bearing planar circuit means is provided and includes a design of components that assemble into a housing package for microcircuit modules with means for locating, supporting, interconnecting and housing th... | 12/12/1978 |