Patents by Inventor Richard Johansson

Richard 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).

  • Method for creating a hardened steel assembly
    Patent number: 9309581
    Abstract: A method of creating a hardened steel assembly from at least two parts may include the consecutive steps of first joining the at least two parts in a cold formed state to form an assembly, and then hardening the joined assembly.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 12, 2016
    Assignee: Volvo Car Corporation
    Inventor: Richard Johansson
  • Method and network node in a wireless communication system
    Patent number: 9037179
    Abstract: Network node (120) and method in the network node (120) for allocating a radio resource in a first radio coverage area (115-1) when establishing a wireless communication with a mobile station (130-1), which radio resource is not assigned exclusively for the first radio coverage area (115-1) but may be shared between multiple radio coverage areas within a local radio environment.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: May 19, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Richard Johansson, Anders Christensson, Benny Lennartson, Joakim Riedel
  • METHOD FOR CREATING A HARDENED STEEL ASSEMBLY
    Publication number: 20140327272
    Abstract: A method of creating a hardened steel assembly from at least two parts may include the consecutive steps of first joining the at least two parts in a cold formed state to form an assembly, and then hardening the joined assembly.
    Type: Application
    Filed: April 25, 2014
    Publication date: November 6, 2014
    Applicant: Volvo Car Corporation
    Inventor: Richard Johansson
  • Method and Network Node in a Wireless Communication System
    Publication number: 20120322488
    Abstract: Network node (120) and method in the network node (120) for allocating a radio resource in a first radio coverage area (115-1) when establishing a wireless communication with a mobile station (130-1), which radio resource is not assigned exclusively for the first radio coverage area (115-1) but may be shared between multiple radio coverage areas within a local radio environment.
    Type: Application
    Filed: January 10, 2012
    Publication date: December 20, 2012
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Richard Johansson, Anders Christensson, Benny Lennartson, Joakim Riedel
  • ESTIMATION OF ACTUAL TORQUE IN AN ELECTRICAL MOTOR DRIVE
    Publication number: 20120146559
    Abstract: It is presented a control device for driving an electric motor, wherein a drive control signal for the electric motor is arranged to be determined using a calculated rotor flux. A direct quadrature, dq, coordinate system relating to a rotor of the electric motor is used. The control device comprises a flux estimator arranged to determine the calculated rotor flux using a quadrature axis voltage, a measured direct axis current, a measured quadrature axis current, an angular velocity, stator resistance and a direct axis inductance and an actual torque calculator arranged to obtain an actual torque estimation using the calculated rotor flux, the measured direct axis current and the measured quadrature axis current. A corresponding method is also presented.
    Type: Application
    Filed: November 30, 2011
    Publication date: June 14, 2012
    Applicant: DANAHER MOTION STOCKHOLM AB
    Inventor: Per Richard Johansson