Patents by Inventor Stefan Zimmermann

Stefan Zimmermann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110105871
    Abstract: A method and apparatus for substance monitoring. One application is an easy to handle continuous glucose monitor using a group of hollow out-of-plane silicon microneedles to sample substances in interstitial fluid from the epidermal skin layer. The glucose of the interstitial fluid permeates a dialysis membrane and reaches a sensor. Using MEMS technology, for example, allows well-established batch fabrication at low cost.
    Type: Application
    Filed: August 4, 2010
    Publication date: May 5, 2011
    Inventors: Stefan Zimmermann, Boris Stoeber, Dorian Liepmann, Albert Pisano
  • Publication number: 20110097812
    Abstract: A gas detector (25) has an electron source (1), which emits electron pulses into a reaction chamber (26) through a membrane (10). The ions formed in the reaction chamber (26) by the electron beam can be detected by means of a current detector (30) by a transfer field pulse being generated in the reaction chamber. The gas sensor (25) may have especially a miniaturized design.
    Type: Application
    Filed: August 10, 2010
    Publication date: April 28, 2011
    Applicant: DRAGERWERK AG & CO. KGAA
    Inventors: Wolfgang BÄTHER, Stefan ZIMMERMANN
  • Patent number: 7910051
    Abstract: In various embodiments, large-area sputtering targets are formed by providing a plurality of sputtering targets each comprising a backing plate and a refractory metal layer disposed thereon, and spray depositing a refractory metal powder on an interface between the sputtering targets, the refractory metal powder consisting essentially of the same metal as each refractory metal layer, thereby joining the refractory metal layers of the sputtering targets.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: March 22, 2011
    Assignees: H.C. Starck GmbH, H.C. Starck, Inc.
    Inventors: Stefan Zimmermann, Steve A. Miller, Prabhat Kumar, Mark Gaydos
  • Patent number: 7832254
    Abstract: A sensor for determining the concentration of particulates in gas mixtures is described, a soot sensor in particular, having a ceramic sensor body surrounded by a metallic housing and having a first and a second measuring electrode. In this instance, the first measuring electrode is connected to the metallic housing of the sensor or the metallic housing of the sensor is designed as the first measuring electrode. By additional electrodes on the ceramic body, the sensor is operable also as a lambda sensor.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: November 16, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Harald Guenschel, Uwe Glanz, Stefan Zimmermann, Leonore Schwegler, Juergen Sindel
  • Publication number: 20100207390
    Abstract: The present invention relates to a converter comprising a pump which is driven directly or indirectly by a natural force such as a water swell, it being possible for a hydraulic machine to be driven by the pump. The hydraulic machine is force-coupled to an electrical machine which may function as a generator or a motor. According to the present invention, the force acting on the pump is regulated via a control loop as a function of oscillation parameters of the natural force.
    Type: Application
    Filed: June 20, 2008
    Publication date: August 19, 2010
    Inventors: Stefan Zimmermann, Christian Langenstein, Nik Scharmann, Louis Verdegem
  • Publication number: 20100055487
    Abstract: Disclosed is a process for the reprocessing or production of a sputter target or an X-ray anode wherein a gas flow forms a gas/powder mixture with a powder of a material chosen from the group consisting of niobium, tantalum, tungsten, molybdenum, titanium, zirconium, mixtures of two or more thereof and alloys thereof with at least two thereof or with other metals, the powder has a particle size of 0.5 to 150 ?m, wherein a supersonic speed is imparted to the gas flow and the jet of supersonic speed is directed on to the surface of the object to be reprocessed or produced.
    Type: Application
    Filed: April 28, 2006
    Publication date: March 4, 2010
    Applicant: H.C. STARCK GMBH
    Inventors: Stefan Zimmermann, Uwe Papp, Heinrich Kreye, Tobias Schmidt
  • Publication number: 20100047622
    Abstract: The invention provides for a cermet powder containing 75-90% by weight of at least one hard material powder, from 10 to 25% by weight of one or more matrix metal powders and up to 3% by weight of at least one modifier, wherein the matrix metal powder or powders contain from 0 to 38% by weight of cobalt, from 0 to 38% by weight of nickel, from 0 to 20% by weight of aluminum, from 0 to 90% by weight of iron and from 10 to 35% by weight of chromium and the sum of the contents of iron and chromium is in the range from 10 to 95% by weight and the sum of the contents of cobalt, nickel and iron is in the range from 65 to 95% by weight. The invention also relates to a cermet and a process to make the cermet containing the cermet powder and shaped article coated with the cermet powder and a process to make the shaped article.
    Type: Application
    Filed: September 21, 2007
    Publication date: February 25, 2010
    Applicant: H.C. Starck GmbH
    Inventors: Jürgen Fischer, Aloys Eiling, Frank Schrumpf, Stefan Zimmermann, Peter Thienel, Roland Scholl
  • Publication number: 20100015467
    Abstract: Disclosed is a method of applying coatings to surfaces, wherein a gas flow forms a gas-powder mixture with a powder of a material selected from the group consisting of niobium, tantalum, tungsten, molybdenum, titanium, zirconium, nickel, cobalt, iron, chromium, aluminum, silver, copper, mixtures of at least two thereof or their alloys with at least two thereof or with other metals, the powder has a particle size of from 0.5 to 150 ?m, an oxygen content of less than 500 ppm oxygen and a hydrogen content of less than 500 ppm, wherein a supersonic speed is imparted to the gas flow and the jet of supersonic speed is directed onto the surface of an object. The coatings prepared are used, for example, as corrosion protection coatings.
    Type: Application
    Filed: October 12, 2007
    Publication date: January 21, 2010
    Applicant: H.C. Starck GmbH & Co., KG
    Inventors: Stefan Zimmermann, Steven A. Miller, Leonid N. Shekter
  • Publication number: 20100006751
    Abstract: A novel, compact non-radioactive electron emitter is provided with a cylindrical shape and with an interior space (6), which forms a vacuum chamber. A substrate (7) forms the bottom of the arrangement with a plurality of field emitter tips (5) formed of carbon nanotubes in the interior space (6). The tips are fastened to the substrate. A layer structure forms the cover of the arrangement, having, from the outside towards the interior space (6), an electrode layer (13), which acts as a counterelectrode and is applied to a gas-impermeable and electron-permeable membrane (10). A substrate (11), which is left open in the form of a window (12) in the area above the field emitter tips (6), acts as a carrier substrate for the membrane (10) and the electrode layer (13). A circumferential wall (14) of the arrangement is formed by an electrically insulating material. The field emitter tips (5) and the electrode layer (13) are connected to a d.c.
    Type: Application
    Filed: April 14, 2009
    Publication date: January 14, 2010
    Applicant: Dragerwerk AG & Co. KGaA
    Inventors: Wolfgang Bather, Stefan Zimmermann
  • Publication number: 20090281443
    Abstract: A device provided for taking and continuously analyzing and monitoring breathing gas samples from defined, current phases of breathing of a patient is equipped with a breathing gas line (1) and with a sensor (2) for recognizing the current phases of breathing. A sampling line (3) is provided from the breathing gas line (1). The sampling line (3) is connected to a first gas delivery device (44) via a sample gas loop (4); with a measuring line (8) from the sampling line (3) to a sensor system (6) with a second gas delivery device (66) for the analysis of breathing gas samples; with a valve (5) in the sampling line (3) for controlling the breathing gas sample flow from defined, current phases of breathing into the sensor system (6) and into the sample gas loop (4), and with a control unit (7), which is connected at least to the gas delivery device (44) and to the valve (5), so that a continuous volume flow of breathing gas samples can be fed to the sensor system (6) from the defined, current phases of breathing.
    Type: Application
    Filed: March 2, 2009
    Publication date: November 12, 2009
    Applicant: Drager Medical AG & Co. KG
    Inventors: Andreas Hengstenberg, Stefan Zimmermann
  • Publication number: 20090123690
    Abstract: The invention relates to blends of metal, alloy or composite powders having a maximum mean particle diameter D50 of 75, preferably a maximum of 25 ?m, which are produced according to a process in which a base powder is first transformed into flake-like particles and these are then crushed in the presence of milling auxiliary agents, with further additives and also the use of these powder blends and moulded objects produced from them.
    Type: Application
    Filed: January 7, 2006
    Publication date: May 14, 2009
    Applicant: H.C. Starck GmbH
    Inventors: Roland Scholl, Stefan Zimmermann
  • Publication number: 20090069651
    Abstract: A method and apparatus for substance monitoring. One application is an easy to handle continuous glucose monitor using a group of hollow out-of-plane silicon microneedles to sample substances in interstitial fluid from the epidermal skin layer. The glucose of the interstitial fluid permeates a dialysis membrane and reaches a sensor. Using MEMS technology, for example, allows well-established batch fabrication at low cost.
    Type: Application
    Filed: August 8, 2008
    Publication date: March 12, 2009
    Inventors: Stefan Zimmermann, Boris Stoeber, Dorian Liepmann, Albert Pisano
  • Publication number: 20080271779
    Abstract: The invention relates to a sputtering target which has a fine uniform equiaxed grain structure of less than 44 microns, no preferred texture orientation as measured by electron back scattered diffraction (“EBSD”) and that displays no grain size banding or texture banding throughout the body of the target. The invention relates a sputtering target with a lenticular or flattened grain structure, no preferred texture orientation as measured by EBSD and that displays no grain size or texture banding throughout the body of the target and where the target has a layered structure incorporating a layer of the sputtering material and at least one additional layer at the backing plate interface, said layer has a coefficient of thermal expansion (“CTE”) value between the CTE of the backing plate and the CTE of the layer of sputtering material. The invention also relates to thin films and their use of using the sputtering target and other applications, such as coatings, solar devices, semiconductor devices etc.
    Type: Application
    Filed: November 8, 2007
    Publication date: November 6, 2008
    Applicant: H.C. Starck Inc.
    Inventors: Steven A. Miller, Olaf Schmidt-Park, Prabhat Kumar, Richard Wu, Shuwei Sun, Stefan Zimmermann
  • Publication number: 20080216602
    Abstract: Disclosed is a process for the reprocessing or production of a sputter target or an X-ray anode wherein a gas flow forms a gas/powder mixture with a powder of a material chosen from the group consisting of niobium, tantalum, tungsten, molybdenum, titanium, zirconium, mixtures of two or more thereof and alloys thereof with at least two thereof or with other metals, the powder has a particle size of 0.5 to 150 ?m, wherein a supersonic speed is imparted to the gas flow and the jet of supersonic speed is directed on to the surface of the object to be reprocessed or produced.
    Type: Application
    Filed: November 5, 2007
    Publication date: September 11, 2008
    Applicant: H. C. Starck GmbH
    Inventors: Stefan Zimmermann, Uwe Papp, Hans Keller, Steven A. Miller, Prabhat Kumar, Mark Gaydos, Rong-Chen Richard Wu
  • Patent number: 7419431
    Abstract: In one embodiment of the game, a matrix of symbols is displayed on a display screen. The matrix may be a 3×3 array of symbols or any other configuration. Each symbol has a selectable direction indicator that points to another symbol or out of the matrix. The direction indicators are randomly selected. An award is based on paths created by the direction indicators. The award may be determined by the path from an entrance into the matrix to an exit out of the matrix, or the award may be based on the patterns formed by the paths. The game may be a main game or a bonus game and can be displayed on a display screen or by motor-driven reels.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: September 2, 2008
    Assignee: Atronic International GmbH
    Inventors: Michael Gauselmann, Stefan Zimmermann
  • Publication number: 20080202943
    Abstract: A sensor for determining the concentration of particulates in gas mixtures is described, a soot sensor in particular, having a ceramic sensor body surrounded by a metallic housing and having a first and a second measuring electrode. In this instance, the first measuring electrode is connected to the metallic housing of the sensor or the metallic housing of the sensor is designed as the first measuring electrode. By additional electrodes on the ceramic body, the sensor is operable also as a lambda sensor.
    Type: Application
    Filed: September 9, 2005
    Publication date: August 28, 2008
    Inventors: Harald Guenschel, Uwe Glanz, Stefan Zimmermann, Leonore Schwegler, Juergen Sindel
  • Patent number: 7417224
    Abstract: An ion mobility spectrometer is provided with at least one ionization chamber (1) through which analyte-containing gas can flow. A radiation source (2) is provided from which ionizing radiation is suitable for ionizing the analyte-containing gas at least partially, enters the ionization space (1). A separation area is located behind the ionization space (1) in the direction of flow, into which the partially ionized gas is admitted as an ion carrier gas (4) and a nearly ion-free gas is admitted as a drift gas (5) in such a way that a flow in which predominantly ion carrier gas (4) flows through cross-sectional areas (6) and predominantly drift gas (5) flows through other cross-sectional areas (7, 7?), becomes established at least in the inlet area of the separation area (8).
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: August 26, 2008
    Assignee: Dräger Saftey AG & Co. KGaA
    Inventors: Stefan Zimmermann, Wolfgang Bäther
  • Patent number: 7415299
    Abstract: A method and apparatus for substance monitoring. One application is an easy to handle continuous glucose monitor using a group of hollow out-of-plane silicon microneedles to sample substances in interstitial fluid from the epidermal skin layer. The glucose of the interstitial fluid permeates a dialysis membrane and reaches a sensor. Using MEMS technology, for example, allows well-established batch fabrication at low cost.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: August 19, 2008
    Assignee: The Regents of the University of California
    Inventors: Stefan Zimmermann, Boris Stoeber, Dorian Liepmann, Albert Pisano
  • Publication number: 20080139285
    Abstract: Disclosed herein is a game played on a gaming device that displays a randomly selected array of symbols, where the symbols across one or more paylines are evaluated by circuitry to determine an award to be granted. A trigger event, such as the occurrence of a certain plurality of special symbols, initiates a series of free games. The number of free games and an award multiplier associated with each free game are dependent on the particular type of special symbols making up the trigger event.
    Type: Application
    Filed: December 11, 2006
    Publication date: June 12, 2008
    Applicant: ATRONIC INTERNATIONAL GMBH
    Inventor: Stefan Zimmermann
  • Publication number: 20080087138
    Abstract: The invention relates to the production of valve metal powders, in particular, tantalum powders by reduction of a corresponding valve metal compound, for example, K2TaF7, with an alkali metal in the presence of a diluent salt, whereby the reduction is carried out in the presence of a particle diminution agent, preferably, Na2SO4, which is added to the reaction mixture continuously or in aliquots.
    Type: Application
    Filed: December 9, 2004
    Publication date: April 17, 2008
    Applicant: H.C. Starck GmbH
    Inventors: Roland Scholl, Stefan Zimmermann