Patents by Inventor Hwi Yeol Park

Hwi Yeol Park 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).

  • Piezoelectric device and method of manufacturing the same
    Patent number: 10211388
    Abstract: A piezoelectric device and a method of manufacturing a piezoelectric device are provided. The piezoelectric device includes first and second electrodes disposed on a first surface of a piezoelectric layer; third and fourth electrodes disposed on a second surface of the piezoelectric layer, a first conductor electrically connecting the first and fourth electrodes, and a second conductor electrically connecting the second and third electrodes, in a cross-link with the first conductor.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: February 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-hoon Cho, Hwi-yeol Park, Jin S. Heo
  • Piezoelectric energy harvester and mobile device having the same
    Patent number: 10103653
    Abstract: A piezoelectric energy harvester includes a cover frame, a mass provided in the cover frame, and at least one piezoelectric transducer provided between an inner wall of the cover frame and the mass and configured to generate electrical energy by being deformed according to a relative movement between the cover frame and the mass.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: October 16, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hwi-yeol Park, Kyung-hoon Cho, Jin S. Heo
  • Thin film deposition apparatus and thin film deposition method using electric field
    Patent number: 9399826
    Abstract: A thin film deposition apparatus and a thin film deposition method using an electric field are provided. The thin film deposition apparatus includes: a first substrate; a plurality of electrodes in a 2D arrangement on the first substrate; and a solution provided on the plurality of electrodes and in which charged nanoparticles are distributed, wherein the charged nanoparticles are selectively deposited on at least a part of the plurality of electrodes by independently applying a voltage to each of the plurality of electrodes.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: July 26, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., The Regents of The University of California
    Inventors: Jin S. Heo, Hwi-yeol Park, Kyung-hoon Cho, Kyoung-hwan Choi, Se-jung Kim, Michael J. Heller, Young-jun Song
  • THIN FILM DEPOSITION APPARATUS AND THIN FILM DEPOSITION METHOD USING ELECTRIC FIELD
    Publication number: 20150329984
    Abstract: A thin film deposition apparatus and a thin film deposition method using an electric field are provided. The thin film deposition apparatus includes: a first substrate; a plurality of electrodes in a 2D arrangement on the first substrate; and a solution provided on the plurality of electrodes and in which charged nanoparticles are distributed, wherein the charged nanoparticles are selectively deposited on at least a part of the plurality of electrodes by independently applying a voltage to each of the plurality of electrodes.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 19, 2015
    Applicants: The Regents of the University of California, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin S. HEO, Hwi-yeol PARK, Kyung-hoon CHO, Kyoung-hwan CHOI, Se-jung KIM, Michael J. Heller, Young-jun SONG
  • PIEZOELECTRIC ENERGY HARVESTER AND MOBILE DEVICE HAVING THE SAME
    Publication number: 20150288299
    Abstract: A piezoelectric energy harvester includes a cover frame, a mass provided in the cover frame, and at least one piezoelectric transducer provided between an inner wall of the cover frame and the mass and configured to generate electrical energy by being deformed according to a relative movement between the cover frame and the mass.
    Type: Application
    Filed: August 19, 2014
    Publication date: October 8, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hwi-yeol PARK, Kyung-hoon CHO, Jin S. HEO
  • PIEZOELECTRIC DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20150076966
    Abstract: A piezoelectric device and a method of manufacturing a piezoelectric device are provided. The piezoelectric device includes first and second electrodes disposed on a first surface of a piezoelectric layer; third and fourth electrodes disposed on a second surface of the piezoelectric layer, a first conductor electrically connecting the first and fourth electrodes, and a second conductor electrically connecting the second and third electrodes, in a cross-link with the first conductor.
    Type: Application
    Filed: July 11, 2014
    Publication date: March 19, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-hoon CHO, Hwi-yeol PARK, Jin S. HEO
  • Piezoelectric power generator for feeding emergency power
    Patent number: 8680750
    Abstract: A piezoelectric power generator for feeding emergency power, includes a frame; a fixing unit comprising a left fixing body coupled to an upper left side of the frame and a right fixing body coupled to an upper right part of the frame; a first piezoelectric body bonded to a right side of the left fixing body; a second piezoelectric body bonded to a left side of the right fixing body; and a vibration unit bonded between the first piezoelectric body and the second piezoelectric body and vibrating vertically.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: March 25, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Hyung Won Kang, Hyeung-Gyu Lee, Woo Sung Lee, Seung Ho Han, Chan Sei Yoo, Hwi Yeol Park
  • PIEZOELECTRIC POWER GENERATOR FOR FEEDING EMERGENCY POWER
    Publication number: 20120161583
    Abstract: A piezoelectric power generator for feeding emergency power, includes a frame; a fixing unit comprising a left fixing body coupled to an upper left side of the frame and a right fixing body coupled to an upper right part of the frame; a first piezoelectric body bonded to a right side of the left fixing body; a second piezoelectric body bonded to a left side of the right fixing body; and a vibration unit bonded between the first piezoelectric body and the second piezoelectric body and vibrating vertically.
    Type: Application
    Filed: March 29, 2011
    Publication date: June 28, 2012
    Inventors: Hyung-Won Kang, Hyeung-Gyu Lee, Woo Sung Lee, Seung Ho Han, Chan Sei Yoo, Hwi Yeol Park