Patents by Inventor Min Jae AHN

Min Jae AHN 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).

  • Publication number: 20200176666
    Abstract: An acoustic resonator comprises a substrate, a resonant portion disposed on the substrate and in which a first electrode, a piezoelectric layer, and a second electrode are stacked, a protective layer disposed on an upper portion of the resonant portion, and a hydrophobic layer formed on the protective layer, and the protective layer comprises a first protective layer stacked on the second electrode and a second protective layer stacked on the first protective layer, wherein a density of the second protective layer is higher than a density of the first protective layer.
    Type: Application
    Filed: June 19, 2019
    Publication date: June 4, 2020
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung Lee, Jong Beom Kim, Min Jae Ahn, Jin Suk Son
  • Patent number: 9502999
    Abstract: There is provided an apparatus for driving a motor including: a converter applying an input voltage to each phase winding of the motor; and a processor controlling a phase current flowing to the phase winding to which the input voltage is applied to be increased or decreased in a preset reference range and controlling phase commutation of the motor based on a change in the phase current.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: November 22, 2016
    Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Keun Soo Ha, Rea Young Kim, Joung Ho Son, Min Jae Ahn, Jae Hoon Kim, Mu Seon Woo
  • Publication number: 20160006380
    Abstract: There is provided an apparatus for driving a motor including: a converter applying an input voltage to each phase winding of the motor; and a processor controlling a phase current flowing to the phase winding to which the input voltage is applied to be increased or decreased in a preset reference range and controlling phase commutation of the motor based on a change in the phase current.
    Type: Application
    Filed: June 10, 2015
    Publication date: January 7, 2016
    Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Keun Soo HA, Rea Young KIM, Joung Ho SON, Min Jae AHN, Jae Hoon KIM, Mu Seon WOO