Patents Assigned to Power Roll Limited
  • Patent number: 11522093
    Abstract: The present invention relates to an optoelectronic device comprising a substrate having a first and a second substantially planar face, a series of grooves in the first substantially planar face, and a first and a second electrical conductor on the second substantially planar face; wherein a first face of the first electrical conductor and a first face of the second electrical conductor are reflective.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: December 6, 2022
    Assignee: Power Roll Limited
    Inventor: Alexander John Topping
  • Patent number: 10825941
    Abstract: A two-terminal optoelectronic device includes a substrate having a first and a second series of grooves. A channel may transect the grooves of the first and second series of grooves. Each groove of the first and second series of grooves has a first and a second face and a cavity therebetween. The cavity is at least partially filled with a first semiconductor material. The first face is coated with a conductor material and the second face coated with a second semiconductor material. A structured surface of the substrate separates the first series of grooves from the second series of grooves to define a positive pole and a negative pole thereon. A method of producing an optoelectronic device incorporates the grooves into the surface of the substrate.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: November 3, 2020
    Assignee: Power Roll Limited
    Inventor: Alexander John Topping
  • Patent number: 10403773
    Abstract: An optoelectronic device and method of producing the same. The optoelectronic device comprising a substrate having a first and a second substantially planar face and an aperture therein, the aperture passing through and penetrating the first and second substantially planar faces of the substrate. The aperture has a first and a second face defining a space therebetween. The space is at least partially filled with a first semiconductor material, the first face is coated with a conductor material and the second face is coated with a second semiconductor material.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: September 3, 2019
    Assignee: Power Roll Limited
    Inventor: Alexander John Topping