Patents by Inventor Darshan Kundaliya

Darshan Kundaliya 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).

  • Method for the producing of a light-emitting semiconductor chip, method for the production of a conversion die and light-emitting semiconductor chip
    Patent number: 8492182
    Abstract: A light-emitting semiconductor chip is provided, the semiconductor chip comprising a semiconductor body having a pixel region with at least two electrically isolated sub-regions, each sub-region comprising an active layer, which generates electromagnetic radiation of a first wavelength range during operation, a separately manufactured ceramic conversion die over a radiation emission area of at least one sub-region, said conversion die being configured to convert radiation of the first wavelength range into electromagnetic radiation of a second wavelength range, wherein a width of the conversion die does not exceed 100 ?m. Further, a method for the production of a light-emitting semiconductor chip and method for the production of a conversion die are provided.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: July 23, 2013
    Assignees: OSRAM Opto Semiconductors GmbH, OSRAM SYLVANIA Inc.
    Inventors: Norwin Von Malm, Madis Raukas, Darshan Kundaliya
  • Method for the Producing of a Light-Emitting Semiconductor Chip, Method for the Production of a Conversion Die and Light-Emitting Semiconductor Chip
    Publication number: 20120273807
    Abstract: A light-emitting semiconductor chip is provided, the semiconductor chip comprising a semiconductor body having a pixel region with at least two electrically isolated sub-regions, each sub-region comprising an active layer, which generates electromagnetic radiation of a first wavelength range during operation, a separately manufactured ceramic conversion die over a radiation emission area of at least one sub-region, said conversion die being configured to convert radiation of the first wavelength range into electromagnetic radiation of a second wavelength range, wherein a width of the conversion die does not exceed 100 ?m. Further, a method for the production of a light-emitting semiconductor chip and method for the production of a conversion die are provided.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 1, 2012
    Applicants: OSRAM SYLVANIA Inc., OSRAM Opto Semiconductors GmbH
    Inventors: Norwin Von Malm, Madis Raukas, Darshan Kundaliya
  • LED WAVELENGTH-CONVERTING STRUCTURE INCLUDING A THIN FILM STRUCTURE
    Publication number: 20120261688
    Abstract: A wavelength-converting structure for a wavelength-converted light emitting diode (LED) assembly. The wavelength-converting structure includes a thin film structure having a non-uniform top surface. The non-uniform top surface is configured increase extraction of light from the top surface of a wavelength-converting structure.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 18, 2012
    Inventors: Madis Raukas, Adam M. Scotch, Yi Zheng, Darshan Kundaliya