Patents by Inventor Sandra Johansson

Sandra 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).

  • ARRANGEMENT FOR SELECTIVELY VIEWING AND HIDING USER INTERFACE ITEMS ON A BODY OF A COMMUNICATION APPARATUS, AND COMMUNICATION APPARATUS COMPRISING SUCH ARRANGEMENT
    Publication number: 20100039371
    Abstract: An arrangement for selectively viewing and hiding user interface items on a body of a communication apparatus is disclosed. The arrangement comprises a light source arranged inside the body and arranged to project light towards a surface of the body such that when the light source is in an on-state, the user interface item is viewed on the surface of the body; and a polarizing layer arranged with the surface of the body at least where the user interface item is to be viewed, such that the surface there, when the light source is in an off-state and the user interface item is hidden, appears in a primary color of the body. A communication apparatus comprising such arrangement is also disclosed.
    Type: Application
    Filed: August 13, 2008
    Publication date: February 18, 2010
    Applicant: SONY ERICSSON MOBILE COMMUNICATIONS AB
    Inventor: Sandra JOHANSSON
  • Coherent light source based on sum-frequency mixing
    Patent number: 7269189
    Abstract: A method and a device for generating visible coherent radiation is disclosed. The visible coherent radiation is generated by sum-frequency mixing of a first fundamental beam from a diode laser and a second fundamental beam from a diode-pumped solid-state laser. The mixing is performed by means of a quasi-phasematching element provided within the resonant cavity of the solid-state laser. The first fundamental beam is stabilized by providing feedback to the diode laser.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: September 11, 2007
    Assignee: Cobolt AB
    Inventors: Sandra Johansson, Stefan Spiekermann, Shunhua Wang, Valdas Pasiskevicius, Fredrik Laurell, Håkan Karlsson, Katrin Ekvall
  • Coherent light source based on sum-frequency mixing
    Publication number: 20060165136
    Abstract: A method and a device for generating visible coherent radiation is disclosed. The visible coherent radiation is generated by sum-frequency mixing of a first fundamental beam from a diode laser and a second fundamental beam from a diode-pumped solid-state laser. The mixing is performed by means of a quasi-phasematching element provided within the resonant cavity of the solid-state laser. The first fundamental beam is stabilized by providing feedback to the diode laser.
    Type: Application
    Filed: January 21, 2005
    Publication date: July 27, 2006
    Applicant: COBOLT AB
    Inventors: Sandra Johansson, Stefan Spiekermann, Shunhua Wang, Valdas Pasiskevicius, Fredrik Laurell, Hakan Karlsson, Katrin Ekvall