Patents by Inventor Rolf Kaufmann
Rolf Kaufmann 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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Publication number: 20250051692Abstract: Disclosed are coated or uncoated co-granules comprising the following: a) 10 to 40% by weight of cyclic sulfonimine, b) 20 to 60% by weight of bleach activator selected from the group consisting of tetraacetylethylenediamine, decanoyloxybenzoic acid or mixtures thereof, c) 0.1 to 5% by weight of organic acid in the form of the free acid and/or a salt thereof in partially neutralized form, d) 1 to 15% by weight of polyvinyl alcohol as a binder, e) 10 to 25% by weight of desicant selected from the group consisting of alkali metal sulfate, alkali metal carbonate, alkaline earth metal sulfate, alkaline earth metal carbonate, alkaline earth metal oxide, aluminum oxide, hydrates of these compounds or mixtures of two or more thereof, f) 0 to 0.5% by weight of dye and/or pigment, and g) 0 to 5% by weight of water, wherein the percentages relate to the sum of components a) to g) and the sum of components a) to g) is 100 percent.Type: ApplicationFiled: August 7, 2024Publication date: February 13, 2025Inventors: Paul Kaufmann, Rolf Ludwig, Judith Preuschen
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Publication number: 20240027237Abstract: A housing for a measuring instrument comprising a housing part, a cover connectable to the housing part in a detachable manner and by means of which a housing opening of the housing part is closable, and a sealing element. The housing part has a central axis, which coincides congruently with a central axis of the cover when closed. The cover has at least one sealing surface on which the sealing element comes to rest at least when the housing part is completely closed. The housing part has at least one sealing surface on which the sealing element rests when the housing part is closed with the cover. A surface line of the sealing surface of the housing part and/or a surface line of the sealing surface of the cover are/is rotated with respect to the central axis, at least when the housing part is completely closed.Type: ApplicationFiled: July 19, 2023Publication date: January 25, 2024Applicant: WIKA Alexander Wiegand SE & Co. KGInventors: Christoph HILBERT, Rolf KAUFMANN
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Patent number: 9562838Abstract: A steel measuring element is provided. The steel measuring element is made of an austenitic chromium-nickel steel with a low carbon and nitrogen content for measuring pressure, with an edge zone being provided with increased hardness.Type: GrantFiled: March 20, 2014Date of Patent: February 7, 2017Assignee: WIKA ALEXANDER WIEGAND SE & CO. KGInventors: Rolf Bloecher, Rolf Kaufmann, Armin Hawlik
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Patent number: 9209327Abstract: A pixel is formed in a semiconductor substrate (S) with a plane surface for use in a photodetector. It comprises an active region for converting incident light (In) into charge carriers, photogates (PGL, PGM, PGR) for generating a lateral electric potential (?(x)) across the active region, and an integration gate (IG) for storing charge carriers generated in the active region and a dump site (Ddiff). The pixel further comprises separation-enhancing means (SL) for additionally enhancing charge separation in the active region and charge transport from the active region to the integration gate (IG). The separation-enhancing means (SL) are for instance a shield layer designed such that for a given lateral electric potential (?(x)), the incident light (In) does not impinge on the section from which the charge carriers would not be transported to the integration gate (IG).Type: GrantFiled: January 22, 2014Date of Patent: December 8, 2015Assignee: Heptagon Micro Optics Pte. Ltd.Inventors: Simon Neukom, Michael Lehmann, Rolf Kaufmann, Thierry Oggier
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Publication number: 20150253230Abstract: A steel measuring element is provided. The steel measuring element is made of an austenitic chromium-nickel steel with a low carbon and nitrogen content for measuring pressure, with an edge zone being provided with increased hardness.Type: ApplicationFiled: March 20, 2014Publication date: September 10, 2015Inventors: Rolf Bloecher, Rolf Kaufmann, Armin Hawlik
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Patent number: 9086493Abstract: A device for the sensitive detection of X-rays comprises a structured scintillator screen optically coupled to a semiconductor image sensor. The scintillator screen comprises individual columnar elements covered with material showing high optical reflection. Each columnar element represents a pixel, and light flashes created by an X-ray photon in a scintillating event exit through a short surface of the columnar element for detection with a semiconductor image sensor. The semiconductor image sensor comprises a multitude of photosensor elements, and one or more of these photosensor elements receives light from a scintillator screen pixel.Type: GrantFiled: February 14, 2013Date of Patent: July 21, 2015Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA-RECHERCHE ET DEVELOPPEMENTInventors: Rolf Kaufmann, Peter Seitz
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Publication number: 20140203389Abstract: A pixel is formed in a semiconductor substrate (S) with a plane surface for use in a photodetector. It comprises an active region for converting incident light (In) into charge carriers, photogates (PGL, PGM, PGR) for generating a lateral electric potential (?(x)) across the active region, and an integration gate (IG) for storing charge carriers generated in the active region and a dump site (Ddiff). The pixel further comprises separation-enhancing means (SL) for additionally enhancing charge separation in the active region and charge transport from the active region to the integration gate (IG). The separation-enhancing means (SL) are for instance a shield layer designed such that for a given lateral electric potential (?(x)), the incident light (In) does not impinge on the section from which the charge carriers would not be transported to the integration gate (IG).Type: ApplicationFiled: January 22, 2014Publication date: July 24, 2014Applicant: MESA Imaging AGInventors: Simon Neukom, Michael Lehmann, Rolf Kaufmann, Thierry Oggier
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Patent number: 8237126Abstract: The present invention discloses an X-ray imaging device comprising an X-ray absorber that comprises a plurality of semiconductor layers. The plurality of semiconductor layers comprise a substrate having a backside; and at least one absorption layer adapted to absorb at least one X-ray photon impinging on the at least one absorption layer that is adapted to correspondingly generate in response to the at least one impinging X-ray photon at least one electron-hole pair; and a readout unit, wherein the readout unit is operatively coupled to the X-ray absorber such to enable readout of the at least one electron-hole pair. Additional and alternative embodiments are described and claimed.Type: GrantFiled: August 17, 2008Date of Patent: August 7, 2012Assignees: CSEM Centre Suisse d'Electronique et de Mictrotechnique SA, EpispeedInventors: Hans Von Känel, Rolf Kaufmann
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Patent number: 8106472Abstract: The pixel for use in an image sensor comprises a low-doped semiconductor substrate (A). On the substrate (A), an arrangement of a plurality of floating areas, e.g., floating gates (FG2-FG6), is provided. Neighboring floating gates are electrically isolated from each other yet capacitively coupled to each other. By applying a voltage (V2?V1) to two contact areas (FG1, FG7), a lateral steplike electric field is generated. Photogenerated charge carriers move along the electric-field lines to the point of highest potential energy, where a floating diffusion (D) accumulate the photocharges. The charges accumulated in the various pixels are sequentially read out with a suitable circuit known from image-sensor literature, such as a source follower or a charge amplifier with row and column select mechanisms. The pixel of offers at the same time a large sensing area, a high photocharge-detection sensitivity and a high response speed, without any static current consumption.Type: GrantFiled: February 9, 2010Date of Patent: January 31, 2012Assignee: MESA Imaging AGInventors: Rolf Kaufmann, Michael Lehmann, Peter Seitz
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Publication number: 20110101241Abstract: A pixel is formed in a semiconductor substrate (S) with a plane surface for use in a photodetector. It comprises an active region for converting incident light (In) into charge carriers, photogates (PGL, PGM, PGR) for generating a lateral electric potential (?(x)) across the active region, and an integration gate (IG) for storing charge carriers generated in the active region and a dump site (Ddiff). The pixel further comprises separation-enhancing means (SL) for additionally enhancing charge separation in the active region and charge transport from the active region to the integration gate (IG). The separation-enhancing means (SL) are for instance a shield layer designed such that for a given lateral electric potential (?(x)), the incident light (In) does not impinge on the section from which the charge carriers would not be transported to the integration gate (IG).Type: ApplicationFiled: January 10, 2011Publication date: May 5, 2011Applicant: MESA IMAGING AGInventors: Kaspar Cottier, Rolf Kaufmann, Rino E. Kunz, Thierry Oggier, Guy Voirin, Simon Neukom, Michael Lehmann
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Patent number: 7924973Abstract: The present invention discloses an interferometer device and method. In embodiments, the device comprises an electromagnetic radiation source emitting radiation having a first mean wavelength ?LE; a phase grating having a first aspect ratio; an absorption grating having a second aspect ratio; and a detector. The electromagnetic radiation source, the phase grating, the absorption grating and the detector are radiatively coupled with each other. The absorption grating is positioned between the detector and the phase grating; the electromagnetic radiation source is positioned in front of the source grating; and wherein the phase grating is designed such to cause a phase shift that is smaller than ? on the emitted radiation. Additional and alternative embodiments are specified and claimed.Type: GrantFiled: November 12, 2008Date of Patent: April 12, 2011Assignee: Csem Centre Suisse D'Electronique Et De Microtechnique SAInventors: Christian Kottler, Rolf Kaufmann
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Patent number: 7897928Abstract: A pixel is formed in a semiconductor substrate (S) with a plane surface for use in a photodetector. It comprises an active region for converting incident light (In) into charge carriers, photogates (PGL, PGM, PGR) for generating a lateral electric potential (?(x)) across the active region, and an integration gate (IG) for storing charge carriers generated in the active region and a dump site (Ddiff). The pixel further comprises separation-enhancing means (SL) for additionally enhancing charge separation in the active region and charge transport from the active region to the integration gate (IG). The separation-enhancing means (SL) are for instance a shield layer designed such that for a given lateral electric potential (?(x)), the incident light (In) does not impinge on the section from which the charge carriers would not be transported to the integration gate (IG).Type: GrantFiled: July 25, 2005Date of Patent: March 1, 2011Assignee: MESA Imaging AGInventors: Rolf Kaufmann, Thierry Oggier, Simon Neukom, Michael Lehmann
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Publication number: 20100193666Abstract: The pixel for use in an image sensor comprises a low-doped semiconductor substrate (A). On the substrate (A), an arrangement of a plurality of floating areas, e.g., floating gates (FG2-FG6), is provided. Neighboring floating gates are electrically isolated from each other yet capacitively coupled to each other. By applying a voltage (V2?V1) to two contact areas (FG1, FG7), a lateral steplike electric field is generated. Photogenerated charge carriers move along the electric-field lines to the point of highest potential energy, where a floating diffusion (D) accumulate the photocharges. The charges accumulated in the various pixels are sequentially read out with a suitable circuit known from image-sensor literature, such as a source follower or a charge amplifier with row and column select mechanisms. The pixel of offers at the same time a large sensing area, a high photocharge-detection sensitivity and a high response speed, without any static current consumption.Type: ApplicationFiled: February 9, 2010Publication date: August 5, 2010Applicant: MESA IMAGING AGInventors: Rolf Kaufmann, Michael Lehmann, Peter Seitz
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Patent number: 7701028Abstract: The pixel for use in an image sensor comprises a low-doped semiconductor substrate (A). On the substrate (A), an arrangement of a plurality of floating areas e.g., floating gates (FG2-FG6), is provided. Neighboring floating gates are electrically isolated from each other yet capacitively coupled to each other. By applying a voltage (V2-V1) to two contact areas (FG1, FG7), a lateral steplike electric field is generated. Photogenerated charge carriers move along the electric-field lines to the point of highest potential energy, where a floating diffusion (D) accumulate the photocharges. The charges accumulated in the various pixels are sequentially read out with a suitable circuit known from image-sensor literature, such as a source follower or a charge amplifier with row and column select mechanisms. The pixel of offers at the same time a large sensing area, a high photocharge-detection sensitivity and a high response speed without any static current consumption.Type: GrantFiled: March 31, 2005Date of Patent: April 20, 2010Assignee: MESA Imaging AGInventors: Rolf Kaufmann, Michael Lehmann, Peter Seitz
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Patent number: 7547889Abstract: The present invention discloses a photon detection device that is adapted to detect at least one packet of photons. The photon detection device may include a photon-sensitive element having an output, an amplifier; and a non-linear feedback (NLF) element. The photon-sensitive element generates charges upon the engagement of at least one photon packet therewith. An increase from a first number of charges in the photon-sensitive element to a second number of charges, results in a corresponding increase of a first reset time required to reset the first number of charges to a respective second reset time required to reset the second number of charges in the photon-sensitive element, whereby the reset time is non-linear to with respect to an increase in the charges. Additional and alternative embodiments are described and claimed.Type: GrantFiled: March 14, 2008Date of Patent: June 16, 2009Assignee: CSEM Centre Suisse D'Electronique Et De Microtechnique SAInventors: Michael Lehmann, Rolf Kaufmann, Max Erick Busse-Grawitz
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Publication number: 20090128830Abstract: The present invention discloses an interferometer device and method. In embodiments, the device comprises an electromagnetic radiation source emitting radiation having a first mean wavelength ?LE; a phase grating having a first aspect ratio; an absorption grating having a second aspect ratio; and a detector. The electromagnetic radiation source, the phase grating, the absorption grating and the detector are radiatively coupled with each other. The absorption grating is positioned between the detector and the phase grating; the electromagnetic radiation source is positioned in front of the source grating; and wherein the phase grating is designed such to cause a phase shift that is smaller than ? on the emitted radiation. Additional and alternative embodiments are specified and claimed.Type: ApplicationFiled: November 12, 2008Publication date: May 21, 2009Inventors: Christian KOTTLER, Rolf KAUFMANN
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Publication number: 20090045346Abstract: The present invention discloses an X-ray imaging device comprising an X-ray absorber that comprises a plurality of semiconductor layers. The plurality of semiconductor layers comprise a substrate having a backside; and at least one absorption layer adapted to absorb at least one X-ray photon impinging on the at least one absorption layer that is adapted to correspondingly generate in response to the at least one impinging X-ray photon at least one electron-hole pair; and a readout unit, wherein the readout unit is operatively coupled to the X-ray absorber such to enable readout of the at least one electron-hole pair. Additional and alternative embodiments are described and claimed.Type: ApplicationFiled: August 17, 2008Publication date: February 19, 2009Inventors: Hans Von Kanel, Rolf Kaufmann
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Publication number: 20090014658Abstract: A pixel is formed in a semiconductor substrate (S) with a plane surface for use in a photodetector. It comprises an active region for converting incident light (In) into charge carriers, photogates (PGL, PGM, PGR) for generating a lateral electric potential (?(x)) across the active region, and an integration gate (IG) for storing charge carriers generated in the active region and a dump site (Ddiff). The pixel further comprises separation-enhancing means (SL) for additionally enhancing charge separation in the active region and charge transport from the active region to the integration gate (IG). The separation-enhancing means (SL) are for instance a shield layer designed such that for a given lateral electric potential (?(x)), the incident light (In) does not impinge on the section from which the charge carriers would not be transported to the integration gate (IG).Type: ApplicationFiled: July 25, 2005Publication date: January 15, 2009Inventors: Kaspar Cottier, Rolf Kaufmann, Rino E. Kunz, Thierry Oggier, Guy Voirin, Simon Neukom, Michael Lehmann
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Publication number: 20080224054Abstract: The present invention discloses a photon detection device that is adapted to detect at least one packet of photons. The photon detection device may include a photon-sensitive element having an output, an amplifier; and a non-linear feedback (NLF) element. The photon-sensitive element generates charges upon the engagement of at least one photon packet therewith. An increase from a first number of charges in the photon-sensitive element to a second number of charges, results in a corresponding increase of a first reset time required to reset the first number of charges to a respective second reset time required to reset the second number of charges in the photon-sensitive element, whereby the reset time is non-linear to with respect to an increase in the charges. Additional and alternative embodiments are described and claimed.Type: ApplicationFiled: March 14, 2008Publication date: September 18, 2008Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SAInventors: Michael Lehmann, Rolf Kaufmann, Max Erick Busse-Grawitz
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Publication number: 20070187724Abstract: The pixel for use in an image sensor comprises a low-doped semiconductor substrate (A). On the substrate (A), an arrangement of a plurality of floating areas e.g., floating gates (FG2-FG6), is provided. Neighboring floating gates are electrically isolated from each other yet capacitively coupled to each other. By applying a voltage (V2-V1) to two contact areas (FG1, FG7), a lateral steplike electric field is generated. Photogenerated charge carriers move along the electric-field lines to the point of highest potential energy, where a floating diffusion (D) accumulate the photocharges. The charges accumulated in the various pixels are sequentially read out with a suitable circuit known from image-sensor literature, such as a source follower or a charge amplifier with row and column select mechanisms. The pixel of offers at the same time a large sensing area, a high photocharge-detection sensitivity and a high response speed without any static current consumption.Type: ApplicationFiled: March 31, 2005Publication date: August 16, 2007Inventors: Rolf Kaufmann, Michael Lehmann, Peter Seitz