Patents by Inventor Gunnar Niklasson

Gunnar Niklasson 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).

  • Thermochromic Material and Fabrication Thereof
    Publication number: 20140346415
    Abstract: A thermochromic material comprises VO2 doped with Mg. A method for manufacturing of VO2-based thermochromic material comprises the step of doping a VO2-based thermochromic material with Mg.
    Type: Application
    Filed: August 13, 2014
    Publication date: November 27, 2014
    Inventors: Claes Göran Granqvist, Gunnar A. Niklasson, Nuru R. Mlyuka
  • Thermochromic material and fabrication method
    Patent number: 8889219
    Abstract: In a method for manufacturing of thermochromic material, a target increased luminous transmittance level for the thermochromic material is determined (210). The luminous transmittance level is defined within a predetermined wavelength region. Preferably, this predetermined wavelength region at least partly comprises visible light. A concentration level of a first dopant element is determined (212) for generating the luminous transmittance level of the thermochromic material. The first dopant element is capable of forming an oxide having a high bandgap in its electronic structure, and in a specific embodiment is Al and/or Mg. A VO2-based thermochromic material is doped (214) with the determined concentration level of the first dopant element. At least one second dopant may also be employed.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: November 18, 2014
    Assignee: Chromogenics AB
    Inventors: Claes Göran Granqvist, Gunnar A. Niklasson, Nuru R. Mlyuka
  • THERMOCHROMIC MATERIAL AND FABRICATION METHOD
    Publication number: 20110260123
    Abstract: In a method for manufacturing of thermochromic material, a target increased luminous transmittance level for the thermochromic material is determined (210). The luminous transmittance level is defined within a predetermined wavelength region. Preferably, this predetermined wavelength region at least partly comprises visible light. A concentration level of a first dopant element is determined (212) for generating the luminous transmittance level of the thermochromic material. The first dopant element is capable of forming an oxide having a high bandgap in its electronic structure, and in a specific embodiment is Al and/or Mg. A VO2-based thermochromic material is doped (214) with the determined concentration level of the first dopant element. At least one second dopant may also be employed.
    Type: Application
    Filed: September 30, 2009
    Publication date: October 27, 2011
    Inventors: Claes Göran Granqvist, Gunnar A. Niklasson, Nuru R. Mlyuka
  • Climate control system and method for controlling such
    Patent number: 6965813
    Abstract: The invention relates to a climate control system comprising at least one radiation reducer and a climate control unit for controlling the radiation reducer. Which system further comprises a usage detection system coupled to the climate control unit. It also relates to a method of climate control in a room, using a climate control system comprising at least one radiation reducer, which method comprises the steps of detecting if the room is in use or not, if in use, setting the radiation reducer in a mode of high transmittance, if not in use, setting the radiation reducer in a mode of low transmittance.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: November 15, 2005
    Assignee: Forskarpatent I Uppsala AB
    Inventors: Claes-Göran Granqvist, Andris Azens, Joakim Karlsson, Gunnar Niklasson, Arne Roos
  • Climate control system and a method for controlling such
    Publication number: 20030233172
    Abstract: The invention relates to a climate control system comprising at least one radiation reducer and a climate control unit for controlling the radiation reducer. Which system further comprises a usage detection system coupled to the climate control unit. It also relates to a method of climate control in a room, using a climate control system comprising at least one radiation reducer, which method comprises the steps of detecting if the room is in use or not, if in use, setting the radiation reducer in a mode of high transmittance, if not in use, setting the radiation reducer in a mode of low transmittance.
    Type: Application
    Filed: March 4, 2003
    Publication date: December 18, 2003
    Inventors: Claes-Goran Granqvist, Andris Azens, Joakim Amorim, Gunnar Niklasson, Arne Roos