Patents by Inventor Ho Tuck Ming

Ho Tuck Ming 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).

  • Color yield of white LEDs
    Patent number: 9048397
    Abstract: A method of disposing a phosphor material on an LED such that the LED emits white light and adjusting the quantity of phosphor material such that the white light meets a color target. A formulated procedure is used to determine the adjustment required, and includes a correlation between a change in position of a color of an LED on a CIE diagram and a known quantity of phosphor material added to the LED.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: June 2, 2015
    Assignee: Carsem (M) SDN. BHD.
    Inventors: Edmund Sales Cabatbat, Lily Khor, Ho Tuck Ming
  • COLOR YIELD OF WHITE LEDS
    Publication number: 20150087087
    Abstract: A method of disposing a phosphor material on an LED such that the LED emits white light and adjusting the quantity of phosphor material such that the white light meets a color target. A formulated procedure is used to determine the adjustment required, and includes a correlation between a change in position of a color of an LED on a CIE diagram and a known quantity of phosphor material added to the LED.
    Type: Application
    Filed: January 6, 2014
    Publication date: March 26, 2015
    Applicant: CARSEM (M) SDN. BHD.
    Inventors: Edmund Sales Cabatbat, Lily Khor, Ho Tuck Ming