Patents by Inventor Abdul Karim Aizar

Abdul Karim Aizar 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 making an LED
    Patent number: 6806658
    Abstract: A LED that includes a light emitter that emits light of a first wavelength and a phosphor layer that converts a portion of that light to light of a second wavelength is disclosed. The phosphor layer includes a powdered phosphor suspended in a photo-curable medium that sets upon exposure to light of a curing wavelength. The phosphor layer can also include a thixotropic agent that reduces the rate at which the powdered phosphor settles in the medium prior to the medium being exposed to light of the curing wavelength. The photo-curable medium preferably includes a photo-curable epoxy that cures in a time that is short compared to the settling time of the phosphor powder in the medium.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: October 19, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Kheng Leng Tan, Abdul Karim Aizar, Su Lin Oon, Boon Chun Tan
  • METHOD FOR MAKING AN LED
    Publication number: 20040183471
    Abstract: A LED that includes a light emitter that emits light of a first wavelength and a phosphor layer that converts a portion of that light to light of a second wavelength is disclosed. The phosphor layer includes a powdered phosphor suspended in a photo-curable medium that sets upon exposure to light of a curing wavelength. The phosphor layer can also include a thixotropic agent that reduces the rate at which the powdered phosphor settles in the medium prior to the medium being exposed to light of the curing wavelength. The photo-curable medium preferably includes a photo-curable epoxy that cures in a time that is short compared to the settling time of the phosphor powder in the medium.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 23, 2004
    Inventors: Kheng Leng Tan, Abdul Karim Aizar, Su Lin Oon, Boon Chun Tan