Patents by Inventor Arash Pourhashemi

Arash Pourhashemi 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).

  • High power blue-violet III-nitride semipolar laser diodes
    Patent number: 9356431
    Abstract: A high power blue-violet Ill-nitride semipolar laser diode (LD) with an output power in excess of 1 W, a slope efficiency of more than 1 W/A, and an external quantum efficiency (EQE) in excess of 25% and more preferably, in excess of 35%. These operating characteristics make these laser diodes suitable for use in solid state lighting systems.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: May 31, 2016
    Assignee: The Regents of the University of California
    Inventors: Arash Pourhashemi, Robert M. Farrell, Steven P. DenBaars, James S. Speck, Shuji Nakamura
  • HIGH POWER BLUE-VIOLET III-NITRIDE SEMIPOLAR LASER DIODES
    Publication number: 20150372456
    Abstract: A high power blue-violet Ill-nitride semi-polar laser diode (LD) with an output power in excess of 1 W, a slope efficiency of more than 1 W/A, and an external quantum efficiency (EQE) in excess of 25% and more preferably, in excess of 35%. These operating characteristics make these laser diodes suitable for use in solid state lighting systems.
    Type: Application
    Filed: February 13, 2014
    Publication date: December 24, 2015
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Arash Pourhashemi, Robert M. Farrell, Steven P. DenBaars, James S. Speck, Shuji Nakamura