Patents by Inventor Truls Lowgren

Truls Lowgren 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).

  • Publication number: 20240431011
    Abstract: A method for determining a position of each of a plurality of electronic devices belonging to a common system of electronic devices is disclosed. The method comprising, for each of the plurality of electronic devices: detecting presence of a person in a predetermined presence volume associated with the electronic device; in response to detecting presence of a person in the predetermined presence volume, wirelessly transmitting, from the electronic device, an ID-message comprising a device-ID of the electronic device; at a portable electronic device, receiving the ID-message and extracting the device-ID of the electronic device; and mapping a current position of the portable electronic device as a position of the electronic device for which device-ID has been extracted.
    Type: Application
    Filed: October 6, 2022
    Publication date: December 26, 2024
    Inventors: Truls LÖWGREN, Tord WINGREN, Bengt LINDOFF, Jakob SINGVALL, Frans ROSELIUS
  • Publication number: 20200286604
    Abstract: A method is disclosed for generating a database to be used to set illumination of an adjustable light source. The method comprising: for a plurality of different users: identifying an individual user; setting a specific light profile of the adjustable light source, the specific light profile comprising information pertaining to a spectral content and/or intensity of light by which the individual user is exposed to; while exposing the individual user for the specific light profile, sensing data pertaining to a health condition and/or a behavior of the individual user; determining a data set linking the specific light profile, genomic data pertaining to the individual user, and the data pertaining to the health condition and/or the behavior of the individual user sensed while exposing the individual user to the specific light profile; and storing the linked data set in a database. A light control system is further provided.
    Type: Application
    Filed: May 21, 2020
    Publication date: September 10, 2020
    Inventors: Tord WINGREN, Truls LÖWGREN
  • Patent number: 9419183
    Abstract: An opto-electric structure includes a plurality of nano elements arranged side by side on a support layer, where each nano element includes at least a first conductivity type semiconductor nano sized core, and where the core and a second conductivity type semiconductor form a pn or pin junction. A first electrode layer that extends over the plurality of nano elements and is in electrical contact with at least a portion of the second conductivity type semiconductor, and a mirror provided on a second conductivity type semiconductor side of the structure.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: August 16, 2016
    Assignee: GLO AB
    Inventors: Truls Lowgren, Ghulam Hasnain
  • Patent number: 9312442
    Abstract: A light emitting diode (LED) structure includes a plurality of devices arranged side by side on a support layer. Each device includes a first conductivity type semiconductor nanowire core and an enclosing second conductivity type semiconductor shell for forming a pn or pin junction that in operation provides an active region for light generation. A first electrode layer extends over the plurality of devices and is in electrical contact with at least a top portion of the devices to connect to the shell. The first electrode layer is at least partly air-bridged between the devices.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: April 12, 2016
    Assignee: GLO AB
    Inventor: Truls Lowgren
  • Publication number: 20150357520
    Abstract: A light emitting diode (LED) structure includes a plurality of devices arranged side by side on a support layer. Each device includes a first conductivity type semiconductor nanowire core and an enclosing second conductivity type semiconductor shell for forming a pn or pin junction that in operation provides an active region for light generation. A first electrode layer extends over the plurality of devices and is in electrical contact with at least a top portion of the devices to connect to the shell. The first electrode layer is at least partly air-bridged between the devices.
    Type: Application
    Filed: August 18, 2015
    Publication date: December 10, 2015
    Inventor: Truls Lowgren
  • Patent number: 9117990
    Abstract: A light emitting diode (LED) structure includes a plurality of devices arranged side by side on a support layer. Each device includes a first conductivity type semiconductor nanowire core and an enclosing second conductivity type semiconductor shell for forming a pn or pin junction that in operation provides an active region for light generation. A first electrode layer extends over the plurality of devices and is in electrical contact with at least a top portion of the devices to connect to the shell. The first electrode layer is at least partly air-bridged between the devices.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: August 25, 2015
    Assignee: GLO AB
    Inventor: Truls Lowgren
  • Patent number: 9096429
    Abstract: The present invention relates to semiconductor devices comprising semiconductor nanoelements. In particular the invention relates to devices having a volume element having a larger diameter than the nanoelement arranged in epitaxial connection to the nanoelement. The volume element is being doped in order to provide a high charge carrier injection into the nanoelement and a low access resistance in an electrical connection. The nanoelement may be upstanding from a semiconductor substrate. A concentric layer of low resistivity material forms on the volume element forms a contact.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: August 4, 2015
    Assignee: QUNANO AB
    Inventors: Lars Ivar Samuelson, Patrik Svensson, Jonas Ohlsson, Truls Lowgren
  • Publication number: 20150207037
    Abstract: An opto-electric structure includes a plurality of nano elements arranged side by side on a support layer, where each nano element includes at least a first conductivity type semiconductor nano sized core, and where the core and a second conductivity type semiconductor form a pn or pin junction. A first electrode layer that extends over the plurality of nano elements and is in electrical contact with at least a portion of the second conductivity type semiconductor, and a mirror provided on a second conductivity type semiconductor side of the structure.
    Type: Application
    Filed: December 16, 2014
    Publication date: July 23, 2015
    Inventors: Truls Lowgren, Ghulam Hasnain
  • Patent number: 9087896
    Abstract: The present invention relates to providing layers of different thickness on vertical and horizontal surfaces (15, 20) of a vertical semiconductor device (1). In particular the invention relates to gate electrodes and the formation of precision layers (28) in semiconductor structures comprising a substrate (10) and an elongated structure (5) essentially standing up from the substrate. According to the method of the invention the vertical geometry of the device (1) is utilized in combination with either anisotropic deposition or anisotropic removal of deposited material to form vertical or horizontal layers of very high precision.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: July 21, 2015
    Assignee: QUNANO AB
    Inventors: Jonas Ohlsson, Lars Samuelson, Erik Lind, Lars-Erik Wernersson, Truls Lowgren
  • Patent number: 8937295
    Abstract: An opto-electric structure includes a plurality of nano elements arranged side by side on a support layer, where each nano element includes at least a first conductivity type semiconductor nano sized core, and where the core and a second conductivity type semiconductor form a pn or pin junction. A first electrode layer that extends over the plurality of nano elements and is in electrical contact with at least a portion of the second conductivity type semiconductor, and a mirror provided on a second conductivity type semiconductor side of the structure.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: January 20, 2015
    Assignee: GLO AB
    Inventors: Truls Lowgren, Ghulam Hasnain
  • Publication number: 20140312381
    Abstract: The present invention relates to semiconductor devices comprising semiconductor nanoelements. In particular the invention relates to devices having a volume element having a larger diameter than the nanoelement arranged in epitaxial connection to the nanoelement. The volume element is being doped in order to provide a high charge carrier injection into the nanoelement and a low access resistance in an electrical connection. The nanoelement may be upstanding from a semiconductor substrate. A concentric layer of low resistivity material forms on the volume element forms a contact.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 23, 2014
    Inventors: Lars Ivar Samuelson, Patrik Svensson, Jonas Ohlsson, Truls Lowgren
  • Patent number: 8796119
    Abstract: The present invention relates to semiconductor devices comprising semiconductor nanoelements. In particular the invention relates to devices having a volume element having a larger diameter than the nanoelement arranged in epitaxial connection to the nanoelement. The volume element is being doped in order to provide a high charge carrier injection into the nanoelement and a low access resistance in an electrical connection. The nanoelement may be upstanding from a semiconductor substrate. A concentric layer of low resistivity material forms on the volume element forms a contact.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: August 5, 2014
    Assignee: Qunano AB
    Inventors: Lars Ivar Samuelson, Patrik Svensson, Jonas Ohlsson, Truls Lowgren
  • Publication number: 20140141555
    Abstract: A light emitting diode (LED) structure includes a plurality of devices arranged side by side on a support layer. Each device includes a first conductivity type semiconductor nanowire core and an enclosing second conductivity type semiconductor shell for forming a pn or pin junction that in operation provides an active region for light generation. A first electrode layer extends over the plurality of devices and is in electrical contact with at least a top portion of the devices to connect to the shell. The first electrode layer is at least partly air-bridged between the devices.
    Type: Application
    Filed: January 28, 2014
    Publication date: May 22, 2014
    Applicant: GLO AB
    Inventor: Truls Lowgren
  • Publication number: 20140103423
    Abstract: The present invention relates to providing layers of different thickness on vertical and horizontal surfaces (15, 20) of a vertical semiconductor device (1). In particular the invention relates to gate electrodes and the formation of precision layers (28) in semiconductor structures comprising a substrate (10) and an elongated structure (5) essentially standing up from the substrate. According to the method of the invention the vertical geometry of the device (1) is utilized in combination with either anisotropic deposition or anisotropic removal of deposited material to form vertical or horizontal layers of very high precision.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 17, 2014
    Applicant: QUNANO AB
    Inventors: Jonas Ohlsson, Lars Samuelson, Erik Lind, Lars-Erik Wernersson, Truls Lowgren
  • Patent number: 8669125
    Abstract: A light emitting diode (LED) structure includes a plurality of devices arranged side by side on a support layer. Each device includes a first conductivity type semiconductor nanowire core and an enclosing second conductivity type semiconductor shell for forming a pn or pin junction that in operation provides an active region for light generation. A first electrode layer extends over the plurality of devices and is in electrical contact with at least a top portion of the devices to connect to the shell. The first electrode layer is at least partly air-bridged between the devices.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: March 11, 2014
    Assignee: GLO AB
    Inventor: Truls Löwgren
  • Patent number: 8551834
    Abstract: The present invention relates to providing layers of different thickness on vertical and horizontal surfaces (15, 20) of a vertical semiconductor device (1). In particular the invention relates to gate electrodes and the formation of precision layers (28) in semiconductor structures comprising a substrate (10) and an elongated structure (5) essentially standing up from the substrate. According to the method of the invention the vertical geometry of the device (1) is utilized in combination with either anisotropic desposition or anisotropic removal of deposited material to form vertical or horizontal layers of very high precision.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: October 8, 2013
    Assignee: QuNano AB
    Inventors: Jonas Ohlsson, Lars Samuelson, Erik Lind, Lars-Erik Wernersson, Truls Lowgren
  • Patent number: 8455857
    Abstract: The present invention relates to semiconductor devices comprising semiconductor nanoelements. In particular the invention relates to devices having a volume element having a larger diameter than the nanoelement arranged in epitaxial connection to the nanoelement. The volume element is being doped in order to provide a high charge carrier injection into the nanoelement and a low access resistance in an electrical connection. The nanoelement may be upstanding from a semiconductor substrate. A concentric layer of low resistivity material forms on the volume element forms a contact.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 4, 2013
    Assignee: QuNano AB
    Inventors: Lars Ivar Samuelson, Patrik Svensson, Jonas Ohlsson, Truls Lowgren
  • Patent number: 8350251
    Abstract: An opto-electric structure includes a plurality of nano elements arranged side by side on a support layer, where each nano element includes at least a first conductivity type semiconductor nano sized core, and where the core and a second conductivity type semiconductor form a pn or pin junction. A first electrode layer that extends over the plurality of nano elements and is in electrical contact with at least a portion of the second conductivity type semiconductor, and a mirror provided on a second conductivity type semiconductor side of the structure.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: January 8, 2013
    Assignee: GLO AB
    Inventors: Truls Lowgren, Ghulam Hasnain
  • Publication number: 20120211727
    Abstract: The present invention relates to providing layers of different thickness on vertical and horizontal surfaces (15, 20) of a vertical semiconductor device (1). In particular the invention relates to gate electrodes and the formation of precision layers (28) in semiconductor structures comprising a substrate (10) and an elongated structure (5) essentially standing up from the substrate. According to the method of the invention the vertical geometry of the device (1) is utilized in combination with either anisotropic desposition or anisotropic removal of deposited material to form vertical or horizontal layers of very high precision.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 23, 2012
    Applicant: QuNano AB
    Inventors: Jonas Ohlsson, Lars Samuelson, Erik Lind, Lars-Erik Wernersson, Truls Löwgren
  • Patent number: 8178403
    Abstract: The present invention relates to providing layers of different thickness on vertical and horizontal surfaces (15, 20) of a vertical semiconductor device (1). In particular the invention relates to gate electrodes and the formation of precision layers (28) in semiconductor structures comprising a substrate (10) and an elongated structure (5) essentially standing up from the substrate. According to the method of the invention the vertical geometry of the device (1) is utilized in combination with either anisotropic deposition or anisotropic removal of deposited material to form vertical or horizontal layers of very high precision.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: May 15, 2012
    Assignee: QuNano AB
    Inventors: Jonas Ohlsson, Lars Samuelson, Erik Lind, Lars-Erik Wernersson, Truls Löwgren