Patents by Inventor Gunnar Johansson

Gunnar Johansson 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).

  • Patent number: 9570257
    Abstract: A method performed in a control unit for opening a contactor device. The contactor device includes a carrier being movable between a closed position in which a current is allowed to flow in a current path and an open position in which the current path is broken. The control unit is configured to enable the movement of the carrier between the closed position and the open position by energizing a coil of an electromagnetic circuit. The method includes: initiating the opening of the contactor device by de-energizing the coil, wherein the de-energizing includes using a demagnetization circuit including a discharge element, the discharge element being arranged to consume energy in the coil; bypassing, at a first point of time, the discharge element; and re-energizing the coil.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: February 14, 2017
    Assignee: ABB Schweiz AG
    Inventors: Björn Lundén, Gunnar Johansson, Peter Fransson
  • Publication number: 20160293363
    Abstract: A method in a control unit for closing a contactor device. The control unit is configured to enable the movement between the closed and opened position by energizing a coil of an electromagnetic circuit. The method includes applying a voltage over the coil; determining, during a first period of time, current through the coil and voltage over the coil and estimating based thereon model parameters for a model predicting the behavior of the current through the coil if the contactor device were to stay in an open position, and measuring, after the ending of the first period of time, current through the coil and determining a difference between, on the one hand the measured current and, on the other hand a predicted current of the model, and repeating the measuring and determining until a state change from open position to closed position is detected by the difference in current.
    Type: Application
    Filed: November 12, 2013
    Publication date: October 6, 2016
    Inventors: Björn LUNDÉN, Gunnar JOHANSSON, Lars ANDERSSON
  • Publication number: 20160276122
    Abstract: A method performed in a control unit for opening a contactor device. The contactor device includes a carrier being movable between a closed position in which a current is allowed to flow in a current path and an open position in which the current path is broken. The control unit is configured to enable the movement of the carrier between the closed position and the open position by energizing a coil of an electromagnetic circuit. The method includes: initiating the opening of the contactor device by de-energizing the coil, wherein the de-energizing includes using a demagnetization circuit including a discharge element, the discharge element being arranged to consume energy in the coil; bypassing, at a first point of time, the discharge element; and re-energizing the coil.
    Type: Application
    Filed: November 12, 2013
    Publication date: September 22, 2016
    Inventors: Björn Lundén, Gunnar Johansson, Peter Fransson
  • Publication number: 20150155115
    Abstract: A low voltage contactor for connecting and disconnecting a three-phase load to an electric power including a coil, main contacts operated by the coil and an electronic control circuit for controlling voltage supplied to the coil. The electronic control circuit includes a pre-arranged time point selection scheme and is further adapted to select a time point from the pre-arranged time point selection scheme as a time delay, and initiate an instant opening command based on the selected time point.
    Type: Application
    Filed: May 30, 2012
    Publication date: June 4, 2015
    Inventors: Gunnar Johansson, Mats Johansson, Erik Johansson
  • Patent number: 8985038
    Abstract: A feeder movement compensation algorithm for use within a processor controlled sewing machine. The sewing machine configured with a reciprocating needle and thread, and including a stitch plate upon which fabric to be sewn is positioned beneath the needle and thread. The machine also includes a feeder mechanism driving a feed dog thru a movement. The feed dog movement pushes the fabric along the stitch plate and the reciprocating needle and thread form stitches in the fabric. During the stitch cycle, the feed dog movement completes at least one feeder stroke. The feeder stroke includes a portion of the feed dog extending above the stitch plate and moving along the direction of feed. The feeder stroke thus pushes the fabric along the stitch plate. The compensation algorithm calculates a theoretical feeder stroke length based upon a desired stitch.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 24, 2015
    Assignee: VSM Group AB
    Inventors: Anders Flygare, Jonas Bardh, Gunnar Johansson
  • Publication number: 20130345268
    Abstract: The instant disclosure relates to compositions that may be useful as therapeutic agents for the treatment of disorders associated or caused by Ras deregulation or dysregulation, for example, disorders associated with alterations in the NF1 gene such as neurofibromatosis type I, fungal infections such as those caused by Candida albicans, and proliferative disorders such as glioblastoma.
    Type: Application
    Filed: August 20, 2013
    Publication date: December 26, 2013
    Applicants: The Trustees of Dartmouth College, Children's Hospital Medical Center
    Inventors: Nancy Ratner, Yolanda Sanchez, Gunnar Johansson, William Seibel
  • Publication number: 20120302581
    Abstract: The instant disclosure relates to compositions that may be useful as therapeutic agents for the treatment of disorders associated or caused by Ras deregulation or dysregulation, for example, disorders associated with alterations in the NF1 gene such as neurofibromatosis type I, fungal infections such as those caused by Candida albicans, and proliferative disorders such as glioblastoma.
    Type: Application
    Filed: August 12, 2011
    Publication date: November 29, 2012
    Inventors: Nancy Ratner, Yolanda Sanchez, Gunnar Johansson, William Seibel
  • Publication number: 20120123119
    Abstract: Methods and novel intermediates for the preparation of and the treatment with acyclic nucleoside derivatives of the formula: where one of R1 and R2 is an amino acid acyl group and the other of R1 and R2 is a —C(O)C3—C21 saturated or monounsaturated, optionally substituted alkyl and R3 is OH or H.
    Type: Application
    Filed: January 20, 2012
    Publication date: May 17, 2012
    Applicant: Medivir AB
    Inventors: Per ENGELHARDT, Marita Hogberg, Xiao-Xiong Zhou, Nils-Gunnar Johansson, Bjorn Lindborg
  • Patent number: 8158779
    Abstract: 4-Amino-1-((2R,3S,4S,5R)-5-azido-4-hydroxy-5-hydroxymethyl-3-methyl-tetrahydrofuran-2-yl)-1H-pyrimidin-2-one (22) and prodrugs thereof are hepatitis C (HCV) polymerase inhibitors. Also disclosed are compositions and methods for inhibiting HCV and treating HCV-mediated diseases, processes for making the compounds and synthetic intermediates employed in the process.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 17, 2012
    Assignee: Medivir AB
    Inventors: Nils-Gunnar Johansson, Genaidy Kalyanov, Joseph Armstrong Martin, David Bernard Smith, Anna Winqvist
  • Patent number: 8124609
    Abstract: Methods and novel intermediates for the preparation of and the treatment with acyclic nucleoside derivatives of the formula: where one of R1 and R2 is an amino acid acyl group and the other of R1 and R2 is a —C(O)C3-C21 saturated or monounsaturated, optionally substituted alkyl and R3 is OH or H.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: February 28, 2012
    Assignee: Medivir AB
    Inventors: Per Engelhardt, Marita Hogberg, Xiao-Xiong Zhou, Nils-Gunnar Johansson, Björn Lindborg
  • Publication number: 20110303138
    Abstract: A feeder movement compensation algorithm for use within a processor controlled sewing machine. The sewing machine configured with a reciprocating needle and thread, and including a stitch plate upon which fabric to be sewn is positioned beneath the needle and thread. The machine also includes a feeder mechanism driving a feed dog thru a movement. The feed dog movement pushes the fabric along the stitch plate and the reciprocating needle and thread form stitches in the fabric. During the stitch cycle, the feed dog movement completes at least one feeder stroke. The feeder stroke includes a portion of the feed dog extending above the stitch plate and moving along the direction of feed. The feeder stroke thus pushes the fabric along the stitch plate. The compensation algorithm calculates a theoretical feeder stroke length based upon a desired stitch.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Inventors: Anders Flygare, Jonas Bardh, Gunnar Johansson
  • Patent number: 8072171
    Abstract: A method of controlling a current of a three-phase electric motor with a three-phase controller. The firing angles are adjusted so as to leave a range of firing angles in which DC components appear.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: December 6, 2011
    Assignee: ABB AB
    Inventors: Daniel Kling, Gunnar Johansson
  • Patent number: 8030870
    Abstract: A method for reducing the influence of a DC component in a load current of an asynchronous three-phase motor, in which the voltages of two of the three phases are controlled by adjusting firing angles of semiconductor devices of the type turning-off at zero-crossing of the current therethrough comprises the steps carried out for each said controlled phase: detecting turn-off times of the semiconductor devices, calculating a value of a change of firing angle of the semiconductor devices needed for changing the length of the time period between two subsequent turn-off times for compensating for the influence of a DC component, and determining the firing angle of said semiconductor devices in dependence of the result of this calculation.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: October 4, 2011
    Assignee: ABB AB
    Inventors: Daniel Kling, Gunnar Johansson
  • Patent number: 8017620
    Abstract: Deoxyuridine derivatives of the formula where R1 is H or various substituents; D is —NHCO—, —CONH—, —O—, —C(?O)—, —CH?CH, —C?C—, —NR5—; R4 is hydrogen or various substituents; R5 is H, C1-C4 alkyl, C1-C4 alkanoyl; E is Si or C; R6, R7 and R8 are independently selected from C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl or a stable monocyclic, bicyclic or tricyclic ring system; G is —O—, —S—, —CHR10—, —C(?O)—; J is —CH2—, or when G is CHR10 may also be —O— or —NH—; R10 is H, F, —CH3, —CH2NH2, —CH2OH, —OH; R11 is H, F, —CH3, —CH2NH2, —CH2OH, CH(OH)CH3, CH(NH2)CH3; or R10 and R11 together define an olefinic bond, or together form a —CH2-group, thereby defining a cis or trans cyclopropyl group; have utility in the prophylaxis or treatment of protozoal diseases such as malaria.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: September 13, 2011
    Assignee: Medivir AB
    Inventors: Ian Gilbert, Corinne Nguyen, Alessandro Schipani, Ganasan Kasinathan, Nils-Gunnar Johansson, Dolores Gonzalez Pacanowska, Gian Filippo Ruda
  • Publication number: 20110172410
    Abstract: 4-Amino-1-((2R,3S,4S,5R)-5-azido-4-hydroxy-5-hydroxymethyl-3-methyl-tetrahydro-furan-2-yl)-1H-pyrimidin-2-one (22) and prodrugs thereof are hepatitis C(HCV) polymerase inhibitors. Also disclosed are compositions and methods for inhibiting HCV and treating HCV-mediated diseases, processes for making the compounds and synthetic intermediates employed in the process.
    Type: Application
    Filed: March 28, 2011
    Publication date: July 14, 2011
    Applicant: Medivir AB
    Inventors: Nils-Gunnar JOHANSSON, Genadiy Kalyanov, Joseph Armstrong Martin, David Bernard Smith, Anna Winqvist
  • Patent number: 7935681
    Abstract: 4-Amino-1-((2R,3S,4S,5R)-5-azido-4-hydroxy-5-hydroxymethyl-3-methyl-tetrahydro-furan-2-yl)-1H-pyrimidin-2-one (22) and prodrugs thereof are hepatitis C (HCV) polymerase inhibitors. Also disclosed are compositions and methods for inhibiting HCV and treating HCV-mediated diseases, processes for making the compounds and synthetic intermediates employed in the process.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: May 3, 2011
    Assignee: Medivir AB
    Inventors: Nils-Gunnar Johansson, Genaidy Kalyanov, Joseph Armstrong Martin, David Bernard Smith, Anna Winqvist
  • Publication number: 20110021459
    Abstract: Deoxyuridine derivatives of the formula where R1 is H or various substituents; D is —NHCO—, —CONH—, —O—, —C(?O)—, —CH?CH, —C?C—, —NR5—; R4 is hydrogen or various substituents; R5 is H, C1-C4 alkyl, C1-C4 alkanoyl; E is Si or C; R6, R7 and R8 are independently selected from C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl or a stable monocyclic, bicyclic or tricyclic ring system; G is —O—, —S—, —CHR10—, —C(?O)—; J is —CH2—, or when G is CHR10 may also be —O— or —NH—; R10 is H, F, —CH3, —CH2NH2, —CH2OH, —OH; R11 is H, F, —CH3, —CH2NH2, —CH2OH, CH(OH)CH3, CH(NH2)CH3; or R10 and R11 together define an olefinic bond, or together form a —CH2-group, thereby defining a cis or trans cyclopropyl group; have utility in the prophylaxis or treatment of protozoal diseases such as malaria.
    Type: Application
    Filed: August 3, 2010
    Publication date: January 27, 2011
    Applicant: Medivir AB
    Inventors: Ian GILBERT, Corinne Nguyen, Gian Filippo Ruda, Alessandro Schipani, Ganasan Kasinathan, Nils-Gunnar Johansson, Dolores Gonzales Pacanowska
  • Publication number: 20110015148
    Abstract: 4-Amino-1-((2R,3S,4S,5R)-5-azido-4-hydroxy-5-hydroxymethyl-3-methyl-tetrahydro-furan-2-yl)-1H-pyrimidin-2-one (22) and prodrugs thereof are hepatitis C (HCV) polymerase inhibitors. Also disclosed are compositions and methods for inhibiting HCV and treating HCV-mediated diseases, processes for making the compounds and synthetic intermediates employed in the process.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 20, 2011
    Applicant: Medivir AB
    Inventors: Nil-Gunnar Johansson, Genaidy Kalyanov, Joseph Armstrong Martin, David Bernard Smith, Anna Winqvist
  • Patent number: D713801
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: September 23, 2014
    Assignee: ABB AB
    Inventor: Gunnar Johansson
  • Patent number: D714733
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: October 7, 2014
    Assignee: ABB AB
    Inventor: Gunnar Johansson