Patents by Inventor Leif A. Johansson

Leif A. 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: 10355451
    Abstract: A laser comprising a laser cavity formed by a broadband mirror and a comb mirror having a plurality of reflection peaks. A spacing between the plurality of reflection peaks is adjusted such that only one reflection peak is in a gain bandwidth of the laser.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: July 16, 2019
    Assignee: FREEDOM PHOTONICS LLC
    Inventors: Gordon Barbour Morrison, Leif Johansson, Milan L. Mashanovitch
  • Publication number: 20180287343
    Abstract: A laser comprising a laser cavity formed by a broadband mirror and a comb mirror having a plurality of reflection peaks. A spacing between the plurality of reflection peaks is adjusted such that only one reflection peak is in a gain bandwidth of the laser.
    Type: Application
    Filed: April 25, 2018
    Publication date: October 4, 2018
    Inventors: Gordon Barbour Morrison, Leif Johansson, Milan L. Mashanovitch
  • Patent number: 9941971
    Abstract: A monolithic integrated optical transmitter comprising (a) an optical source including two output optical paths and (b) a modulator section that includes an interferometric optical signal combiner is described. Each of the two output optical paths of the optical source includes a reflector. The optical source is configured to output a first light beam through the first optical path and a second light beam through the second optical path. The optical transmitter is capable of generating advanced modulation format signals based on amplitude and phase modulation.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: April 10, 2018
    Assignee: Freedom Photonics, LLC.
    Inventors: Milan Mashanovitch, Leif Johansson
  • Patent number: 9887780
    Abstract: In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: February 6, 2018
    Assignee: Freedom Photonics, LLC.
    Inventors: Jonathon Barton, Leif Johansson, Milan Mashanovitch
  • Publication number: 20160344480
    Abstract: In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.
    Type: Application
    Filed: February 18, 2016
    Publication date: November 24, 2016
    Inventors: Jonathon Barton, Leif Johansson, Milan Mashanovitch
  • Patent number: 9344196
    Abstract: A monolithic integrated optical transmitter comprising (a) an optical source including two output optical paths and (b) a modulator section that includes an interferometric optical signal combiner is described. Each of the two output optical paths of the optical source includes a reflector. The optical source is configured to output a first light beam through the first optical path and a second light beam through the second optical path. The optical transmitter is capable of generating advanced modulation format signals based on amplitude and phase modulation.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: May 17, 2016
    Assignee: Freedom Photonics, LLC.
    Inventors: Milan L. Mashanovitch, Leif Johansson
  • Patent number: 9270380
    Abstract: In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: February 23, 2016
    Assignee: FREEDOM PHOTONICS, LLC.
    Inventors: Jonathon Barton, Leif Johansson, Milan Mashanovitch
  • Patent number: 9048652
    Abstract: A cable termination device of the dry type, including an insulator housing with an upper end and a lower end and having a hollow interior, which lower end has an opening for insertion of the cable. The device further includes a stress controller device located inside the insulator housing and adapted to be mounted on a high voltage cable, and an electrically insulating gel filling at least part of the hollow interior of the insulator housing and surrounding at least part of the stress controller device. Further, the stress controller device extends from the lower end of the insulator housing and into the housing where it has a free end, whereby a space is formed between the stress controller device and an inner wall of the insulator housing.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: June 2, 2015
    Assignee: ABB TECHNOLOGY AG
    Inventors: Mikael Hoglund, Leif Johansson
  • Publication number: 20140356001
    Abstract: In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.
    Type: Application
    Filed: May 1, 2014
    Publication date: December 4, 2014
    Applicant: Freedom Photonics, LLC.
    Inventors: Jonathon Barton, Leif Johansson, Milan Mashanovitch
  • Patent number: 8718486
    Abstract: In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: May 6, 2014
    Assignee: Freedom Photonics, LLC.
    Inventors: Jonathon Barton, Leif Johansson, Milan Mashanovitch
  • Patent number: 8710246
    Abstract: A compound is provided of the formula wherein each u is independently selected from 0 and 1; each R2 and R4 is independently selected from carboxy, carboxyalkyl, alkoxycarbonylalkyl, aminoalkyl, (amino)(carboxy)alkyl and (amino)(carboxy)alkoxy; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: April 29, 2014
    Assignee: Biochromix Newco AB
    Inventors: Peter Åsberg, Leif Johansson, Anna Herland, Andreas Åslund, Peter Konradsson
  • Publication number: 20140069679
    Abstract: A cable termination device of the dry type, including an insulator housing with an upper end and a lower end and having a hollow interior, which lower end has an opening for insertion of the cable. The device further includes a stress controller device located inside the insulator housing and adapted to be mounted on a high voltage cable, and an electrically insulating gel filling at least part of the hollow interior of the insulator housing and surrounding at least part of the stress controller device. Further, the stress controller device extends from the lower end of the insulator housing and into the housing where it has a free end, whereby a space is formed between the stress controller device and an inner wall of the insulator housing.
    Type: Application
    Filed: November 14, 2013
    Publication date: March 13, 2014
    Inventors: Mikael Hoglund, Leif Johansson
  • Publication number: 20130156061
    Abstract: Various embodiments of an arrangement for generating fast wavelength-switched optical signal are described herein. In some embodiments, the arrangement can be integrated with lasers, optical waveguides, optical splitters and gates to form a fast wavelength switched monolithic optical source. In some embodiments, an optical modulator is incorporated into the arrangement to form a fast wavelength switched optical transmitter.
    Type: Application
    Filed: September 18, 2012
    Publication date: June 20, 2013
    Applicant: FREEDOM PHOTONICS, LLC
    Inventors: Leif Johansson, Jonathon Barton, Milan Mashanovitch
  • Patent number: 8401399
    Abstract: In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: March 19, 2013
    Assignee: Freedom Photonics, LLC.
    Inventors: Jonathon Barton, Leif Johansson, Milan Mashanovitch
  • Publication number: 20120157516
    Abstract: The present invention relates to novel substituted thiophene derivatives useful in therapy of diseases related to misfolded and aggregated proteins.
    Type: Application
    Filed: October 19, 2009
    Publication date: June 21, 2012
    Inventors: Peter Åsberg, Leif Johansson, Anna Herland, Andreas Åslund, Peter Konradsson
  • Publication number: 20100303469
    Abstract: In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 2, 2010
    Applicant: FREEDOM PHOTONICS, LLC
    Inventors: Jonathon Barton, Leif Johansson, Milan Mashanovitch
  • Publication number: 20080077343
    Abstract: An implementation of coded time-domain reflectometry that can be incorporated in a transmitter as a built-in test function is disclosed. A sequence of a signal that is being transmitted is captured, delayed and used for correlation to a received reflected signal from the transmission medium. A correlation signal is obtained if the delay value of the captured signal sequence corresponds to the roundtrip delay from the transmitter to a reflection point of the medium. Based to the relation between delay values and the strength of the correlated signal, the magnitude of reflective points throughout the transmission medium can be evaluated. In the preferred embodiment, the transmitter is an optical transmitter, and the transmission medium is optical fiber.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 27, 2008
    Inventor: Leif Johansson
  • Patent number: 6972505
    Abstract: A rotating electrical machine and method for making the machine, where the machine includes a high-voltage stator winding and elongated support devices for supporting the winding. The machine and method employ an arrangement of cable that is made of inner conductive strands, covered with a first semiconducting layer, which is covered with an insulating layer, which is covered with a second semiconducting layer. The cable is wound in slots in the stator such that separate cable lead-throughs are positioned in specific arrangements with respect to each other and in slots of the stator. The arrangement of the cable in the stator protects the integrity of the respective components in the cable and particularly the second semiconducting layer.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: December 6, 2005
    Assignee: ABB
    Inventors: Mats Leijon, Peter Templin, Bengt Rydholm, Lars Gertmar, Bertil Larsson, Bengt Rothman, Peter Carstensen, Leif Johansson, Claes Ivarson, Bo Hernnas, Goran Holmstrom, Bengt Goran, Alberti Backlund
  • Publication number: 20050102777
    Abstract: Method, aggregate and vehicle wash equipment to with at least one fluid jet remove from an exterior surface of a vehicle (F) solid and liquid particles and where appropriate also increase the lustre of the surface, where the jet is brought to move along the surface during simultaneous exercise of a substantially horizontal oscillating movement.
    Type: Application
    Filed: January 27, 2003
    Publication date: May 19, 2005
    Inventor: Leif Johansson
  • Patent number: D544748
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: June 19, 2007
    Assignee: 3P projekt AB
    Inventor: Leif Johansson