Patents by Inventor Eric Chia Eng Chee

Eric Chia Eng Chee 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).

  • Hybrid stepper motor having magnetic enhancement and heat dissipating housing
    Publication number: 20080030108
    Abstract: A hybrid stepper motor includes a stator having a number of poles. Teeth are formed on the stator poles and separated from each other by slots. A magnet is inserted in the slots to a predetermined depth from a top surface of the stator teeth. The motor further includes a rotor that is provided coaxial with the stator. Teeth are also formed on the rotor opposite the stator teeth. The rotor teeth enable the rotor to be rotated relative to the stator in cooperation with the stator teeth.
    Type: Application
    Filed: August 7, 2006
    Publication date: February 7, 2008
    Inventors: Bradley A. Trago, Gregory A. Rittmeyer, Mohd. Fadil Bin Darmin, Sheila Aw Chiew Geok, Eric Chia Eng Chee