Patents by Inventor Jurgen Kleinschmidt
Jurgen Kleinschmidt 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).
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Patent number: 6477187Abstract: An F2-excimer laser has multiple closely-spaced spectral lines of interest around 157 nm, and one of the lines is selected by wavelength selection optics. The wavelength selection optics of a first preferred embodiment include a birefringent Brewster window enclosing the laser gas volume of the discharge chamber. The window preferably comprises MgF2 and is located at one end of the discharge chamber. One line is selected of the two when the optical thickness of the window is selected in coordination with rotatably adjustable, orthogonal refractive indices of the window. The transmissivity of the window is dependent on the orthogonal refractive indices and the optical thickness of the window. The wavelength selection optics of a second preferred embodiment include are at least partially within the laser active volume. In this way, line selection is performed in a manner which optimizes the combination of optical and discharge efficiency, resonator size and cost.Type: GrantFiled: August 7, 2001Date of Patent: November 5, 2002Assignee: Lambda Physik AGInventors: Jürgen Kleinschmidt, Peter Heist, Frank Voss, Andreas Görtler
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Patent number: 6466598Abstract: An F2-excimer laser has multiple closely-spaced spectral lines of interest around 157 nm, and one of the lines is selected by wavelength selection optics. The wavelength selection optics of a first preferred embodiment include a birefringent Brewster window enclosing the laser gas volume of the discharge chamber. The window preferably comprises MgF2 and is located at one end of the discharge chamber. One line is selected of the two when the optical thickness of the window is selected in coordination with rotatably adjustable, orthogonal refractive indices of the window. The transmissivity of the window is dependent on the orthogonal refractive indices and the optical thickness of the window. The wavelength selection optics of a second preferred embodiment include are at least partially within the laser active volume. In this way, line selection is performed in a manner which optimizes the combination of optical and discharge efficiency, resonator size and cost.Type: GrantFiled: August 7, 2001Date of Patent: October 15, 2002Assignee: Lambda Physik AGInventors: Jürgen Kleinschmidt, Peter Heist, Frank Voss, Andreas Görtler
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Patent number: 6459720Abstract: An F2-excimer laser has multiple closely-spaced spectral lines of interest around 157 nm, and one of the lines is selected by wavelength selection optics. The wavelength selection optics of a first preferred embodiment include a birefringent Brewster window enclosing the laser gas volume of the discharge chamber. The window preferably comprises MgF2 and is located at one end of the discharge chamber. One line is selected of the two when the optical thickness of the window is selected in coordination with rotatably adjustable, orthogonal refractive indices of the window. The transmissivity of the window is dependent on the orthogonal refractive indices and the optical thickness of the window. The wavelength selection optics of a second preferred embodiment include are at least partially within the laser active volume. In this way, line selection is performed in a manner which optimizes the combination of optical and discharge efficiency, resonator size and cost.Type: GrantFiled: August 7, 2001Date of Patent: October 1, 2002Assignee: Lambda Physik AGInventors: Jürgen Kleinschmidt, Peter Heist, Frank Voss, Andreas Görtler
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Publication number: 20020116819Abstract: In a method of making an exhaust gas collector, a collector housing is made from a tubular blank, and subsequently, an inlet duct is formed through a widening process to provide a substantially rectangular cross section with rounded narrow sides. The inlet duct is provided with a head flange. At the outlet side, the collector housing is necked by a press-forming process so as to shape an outlet duct having a substantially circular cross section which is reduced in size compared to the cross section of the collector housing. Attached to the outlet duct is an end flange.Type: ApplicationFiled: January 16, 2002Publication date: August 29, 2002Inventors: Christian Smatloch, Artur Lesch, Ingo Toparkus, Gerhard Steinbach, Jurgen Kleinschmidt
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Publication number: 20020076801Abstract: The present invention relates to an AAV DNA having helper virus sequences which are necessary for developing AAV viral particles, a system containing such a DNA and the use of both.Type: ApplicationFiled: August 3, 2001Publication date: June 20, 2002Applicant: Krebsforschungszentrum and Transgene S.A.Inventors: Jurgen Kleinschmidt, Dirk Grimm, Karola Rittner
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Patent number: 6404795Abstract: A laser is provided having a gain medium including a laser gas and a photoabsorbing species. The photoabsorbing species has at least one photoabsorption line within an output emission spectrum of the laser. When the laser is an ArF-excimer laser, the photoabsorbing species is preferably either atomic carbon or molecular oxygen, which are formed after carbon- or oxygen-containing molecules introduced into the gain medium with the laser gas interact within the gain medium. An absolute wavelength of a narrowed emission of the laser can be calibrated when a narrowed output emission of the laser is tuned through at least one photoabsorption line of the photo-absorbing species. Preferably, a processor communicates with a detector and a wavelength selection unit, as well as a power supply when output beam energy is held constant, to automatically perform the calibration.Type: GrantFiled: July 27, 2001Date of Patent: June 11, 2002Assignee: Lambda Physik AGInventors: Uwe Leinhos, Jürgen Kleinschmidt, Wolfgang Zschocke, Uwe Stamm
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Publication number: 20020041616Abstract: An F2-excimer laser has multiple closely-spaced spectral lines of interest around 157 nm, and one of the lines is selected by wavelength selection optics. The wavelength selection optics of a first preferred embodiment include a birefringent Brewster window enclosing the laser gas volume of the discharge chamber. The window preferably comprises MgF2 and is located at one end of the discharge chamber. One line is selected of the two when the optical thickness of the window is selected in coordination with rotatably adjustable, orthogonal refractive indices of the window. The transmissivity of the window is dependent on the orthogonal refractive indices and the optical thickness of the window. The wavelength selection optics of a second preferred embodiment include are at least partially within the laser active volume. In this way, line selection is performed in a manner which optimizes the combination of optical and discharge efficiency, resonator size and cost.Type: ApplicationFiled: August 7, 2001Publication date: April 11, 2002Applicant: Lambda Physik AG.Inventors: Jurgen Kleinschmidt, Peter Heist, Frank Voss, Andreas Gortler
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Publication number: 20020034206Abstract: An F2-excimer laser has multiple closely-spaced spectral lines of interest around 157 nm, and one of the lines is selected by wavelength selection optics. The wavelength selection optics of a first preferred embodiment include a birefringent Brewster window enclosing the laser gas volume of the discharge chamber. The window preferably comprises MgF2 and is located at one end of the discharge chamber. One line is selected of the two when the optical thickness of the window is selected in coordination with rotatably adjustable, orthogonal refractive indices of the window. The transmissivity of the window is dependent on the orthogonal refractive indices and the optical thickness of the window. The wavelength selection optics of a second preferred embodiment include are at least partially within the laser active volume. In this way, line selection is performed in a manner which optimizes the combination of optical and discharge efficiency, resonator size and cost.Type: ApplicationFiled: August 7, 2001Publication date: March 21, 2002Applicant: Lambda Physik AG.Inventors: Jurgen Kleinschmidt, Peter Heist, Frank Voss, Andreas Gortler
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Patent number: 6349583Abstract: In a method of forming a hollow workpiece having open ends by inner pressure in a multi-part forming tool, the forming tool having a forming mold is heated and the workpiece is placed into the forming mold of the forming tool. Closing plugs are inserted into the open ends of the workpiece, wherein the closing plugs are components of closing cylinders, in order to seal off the open ends. The forming tool is closed. A heated pressure fluid is introduced into the hollow workpiece through at least one of the closing plugs, with the hollow workpiece having been heated and plasticized in the forming tool. The material of the hollow workpiece is pressed with the heated pressure fluid into the forming mold of the forming tool. The device for performing the method has a multi-part forming tool with a forming mold for the workpiece. Hydraulic closing cylinders with closing plugs are provided for sealing the open ends of the workpiece. The forming tool has a heating device for heating at least the forming mold.Type: GrantFiled: August 29, 2000Date of Patent: February 26, 2002Assignee: Benteler AGInventors: Jürgen Kleinschmidt, Dieter Töpker, Elmar Grussmann
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Publication number: 20020015432Abstract: An F2-excimer laser has multiple closely-spaced spectral lines of interest around 157 nm, and one of the lines is selected by wavelength selection optics. The wavelength selection optics of a first preferred embodiment include a birefringent Brewster window enclosing the laser gas volume of the discharge chamber. The window preferably comprises MgF2 and is located at one end of the discharge chamber. One line is selected of the two when the optical thickness of the window is selected in coordination with rotatably adjustable, orthogonal refractive indices of the window. The transmissivity of the window is dependent on the orthogonal refractive indices and the optical thickness of the window. The wavelength selection optics of a second preferred embodiment include are at least partially within the laser active volume. In this way, line selection is performed in a manner which optimizes the combination of optical and discharge efficiency, resonator size and cost.Type: ApplicationFiled: August 7, 2001Publication date: February 7, 2002Applicant: Lambda Physik AGInventors: Jurgen Kleinschmidt, Peter Heist, Frank Voss, Andreas Gortler
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Publication number: 20020015431Abstract: An F2-excimer laser has multiple closely-spaced spectral lines of interest around 157 nm, and one of the lines is selected by wavelength selection optics. The wavelength selection optics of a first preferred embodiment include a birefringent Brewster window enclosing the laser gas volume of the discharge chamber. The window preferably comprises MgF2 and is located at one end of the discharge chamber. One line is selected of the two when the optical thickness of the window is selected in coordination with rotatably adjustable, orthogonal refractive indices of the window. The transmissivity of the window is dependent on the orthogonal refractive indices and the optical thickness of the window. The wavelength selection optics of a second preferred embodiment include are at least partially within the laser active volume. In this way, line selection is performed in a manner which optimizes the combination of optical and discharge efficiency, resonator size and cost.Type: ApplicationFiled: August 7, 2001Publication date: February 7, 2002Applicant: Lambda Physik AGInventors: Jurgen Kleinschmidt, Peter Heist, Frank Voss, Andreas Gortler
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Patent number: 6345065Abstract: An F2-excimer laser has multiple closely-spaced spectral lines of interest around 157 nm, and one of the lines is selected by wavelength selection optics. The wavelength selection optics of a first preferred embodiment include a birefringent Brewster window enclosing the laser gas volume of the discharge chamber. The window preferably comprises MgF2 and is located at one end of the discharge chamber. One line is selected of the two when the optical thickness of the window is selected in coordination with rotatably adjustable, orthogonal refractive indices of the window. The transmissivity of the window is dependent on the orthogonal refractive indices and the optical thickness of the window. The wavelength selection optics of a second preferred embodiment include are at least partially within the laser active volume. In this way, line selection is performed in a manner which optimizes the combination of optical and discharge efficiency, resonator size and cost.Type: GrantFiled: May 24, 1999Date of Patent: February 5, 2002Assignee: Lambda Physik AGInventors: Jürgen Kleinschmidt, Peter Heist, Frank Voss, Andreas Görtler
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Publication number: 20020012368Abstract: A wavelength calibration system determines an absolute wavelength of a narrowed spectral emission band of an excimer or molecular laser system. The system includes a module including an element which optically interacts with a component of an output beam of the laser within the tunable range of the laser system around the narrowed band. An inter-level resonance is detected by monitoring changes in voltage within the module, or photo-absorption is detected by photodetecting equipment. The absolute wavelength of the narrowed band is precisely determinable when the optical transitions occur and are detected. When the system specifically includes an ArF-excimer laser chamber, the module is preferably a galvatron containing an element that photo-absorbs around 193 nm and the element is preferably a gas or vapor selected from the group consisting of arsenic, carbon, oxygen, iron, gaseous hydrocarbons, halogenized hydrocarbons, carbon-contaminated inert gases, germanium and platinum vapor.Type: ApplicationFiled: May 4, 2001Publication date: January 31, 2002Applicant: Lambda Physik AGInventors: Jurgen Kleinschmidt, Uwe Stamm, Klaus Vogler, Peter Lokai
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Publication number: 20010031463Abstract: The invention relates to a method for purifying and concentrating AAV-2 and antigen portions thereof. AAV-2 or antigen portions thereof are bonded to an activated chromatographic material on which antibodies are linked, said antibodies being directed against AAV-2. Afterwards, elution using a solution containing 0.5 to 4.5 M MgCl2 is carried out. The invention also relates to a kit for implementing said method.Type: ApplicationFiled: June 20, 2001Publication date: October 18, 2001Inventors: Jurgen Kleinschmidt, Andrea Kern
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Publication number: 20010028669Abstract: A line-narrowed excimer or molecular fluorine laser system includes a gain medium surrounded by a resonator for generating a laser beam, a discharge circuit including a plurality of electrodes for energizing the gain medium and a line-narrowing unit within the resonator for narrowing the bandwidth of the laser system. The resonator includes a deformable resonator reflector. A technique for adjusting the bandwidth of the laser system includes adjusting a surface contour of the deformable resonator reflector. A desired bandwidth may be selected manually or using a processor which automatically controls the surface contour adjustment.Type: ApplicationFiled: February 1, 2001Publication date: October 11, 2001Inventors: Peter Heist, Jurgen Kleinschmidt
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Patent number: 6298080Abstract: A line-narrowed excimer or molecular fluorine laser system includes a gain medium surrounded by a resonator for generating a laser beam, a discharge circuit including a plurality of electrodes for energizing the gain medium and a line-narrowing unit within the resonator for narrowing the bandwidth of the laser system. The resonator includes a deformable resonator reflector. A technique for adjusting the bandwidth of the laser system includes adjusting a surface contour of the deformable resonator reflector. A desired bandwidth may be selected manually or using a processor which automatically controls the surface contour adjustment.Type: GrantFiled: December 1, 1999Date of Patent: October 2, 2001Assignee: Lambda Physik AGInventors: Peter Heist, Jürgen Kleinschmidt
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Patent number: 6272158Abstract: A wavelength calibration system determines an absolute wavelength of a narrowed spectral emission band of an excimer or molecular laser system. The system includes a module including an element which optically interacts with a component of an output beam of the laser within the tunable range of the laser system around the narrowed band. An inter-level resonance is detected by monitoring changes in voltage within the module, or photo-absorption is detected by photodetecting equipment. The absolute wavelength of the narrowed band is precisely determinable when the optical transitions occur and are detected. When the system specifically includes an ArF-excimer laser chamber, the module is preferably a galvatron containing an element that photo-absorbs around 193 nm and the element is preferably a gas or vapor selected from the group consisting of arsenic, carbon, oxygen, iron, gaseous hydrocarbons, halogenized hydrocarbons, carbon-contaminated inert gases, germanium and platinum vapor.Type: GrantFiled: October 4, 2000Date of Patent: August 7, 2001Assignee: Lambda Physik AGInventors: Jürgen Kleinschmidt, Uwe Stamm, Klaus Vogler, Peter Lokai
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Patent number: 6269110Abstract: A laser is provided having a gain medium including a laser gas and a photoabsorbing species. The photoabsorbing species has at least one photoabsorption line within an output emission spectrum of the laser. When the laser is an ArF-excimer laser, the photoabsorbing species is preferably either atomic carbon or molecular oxygen, which are formed after carbon- or oxygen-containing molecules introduced into the gain medium with the laser gas interact within the gain medium. An absolute wavelength of a narrowed emission of the laser can be calibrated when a narrowed output emission of the laser is tuned through at least one photoabsorption line of the photoabsorbing species. Preferably, a processor communicates with a detector and a wavelength selection unit, as well as a power supply when output beam energy is held constant, to automatically perform the calibration.Type: GrantFiled: October 5, 1998Date of Patent: July 31, 2001Assignee: Lambda Physik AGInventors: Uwe Leinhos, Jürgen Kleinschmidt, Wolfgang Zschocke, Uwe Stamm
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Publication number: 20010009560Abstract: A line-narrowed excimer or molecular fluorine laser system includes a gain medium surrounded by a resonator for generating a laser beam, a discharge circuit including a plurality of electrodes for energizing the gain medium and a line-narrowing unit within the resonator for narrowing the bandwidth of the laser system. The resonator includes a deformable resonator reflector. A technique for adjusting the bandwidth of the laser system includes adjusting a surface contour of the deformable resonator reflector. A desired bandwidth may be selected manually or using a processor which automatically controls the surface contour adjustment.Type: ApplicationFiled: February 1, 2001Publication date: July 26, 2001Applicant: Lambda Physik Gesellschaft zur Herstellung von Larsen GmbHInventors: Peter Heist, Jurgen Kleinschmidt
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Patent number: 6243406Abstract: A gas mixture of a gas discharge laser such as an excimer or molecular fluorine laser is stabilized. The gas mixture of the laser includes a constituent halogen containing molecular species such as F2 or HCl which is subject to depletion from an initial optimum concentration. When the gas mixture is energized by a pulsed discharge circuit, the amplified spontaneous emission (ASE) signal is monitored. The status of the gas mixture is determined based on the monitored ASE signal. Stimulated emission is preferably filtered or blocked for more precise ASE signal monitoring. The gas mixture is preferably replenished using small halogen injections, total pressure adjustments and mini and partial gas replacements based on the evolving gas mixture status determined from the monitored ASE signal.Type: GrantFiled: October 14, 1999Date of Patent: June 5, 2001Inventors: Peter Heist, Matthias Kramer, Jürgen Kleinschmidt, Sergei Govorkov