Patents by Inventor Hak June LEE

Hak June LEE 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).

  • Patent number: 12015203
    Abstract: A transparent stealth structure includes: a first transparent film structure stacked on a front surface of a transparent base, the first transparent film structure causing energy loss of incident electromagnetic waves having a target frequency to change a phase of transmitted electromagnetic waves propagating toward the transparent base; and a second transparent film structure stacked on a back surface of a transparent base, the second transparent film structure reflecting the transmitted electromagnetic waves having passed through the transparent base while adjusting a phase of reflected waves propagating toward the first transparent film structure, wherein the first transparent film structure includes a first front transparent conductive pattern having a first sheet resistance and a second front transparent conductive pattern filling a region, and the second transparent film structure includes a first rear transparent conductive pattern having a third sheet resistance and a second rear transparent conductiv
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: June 18, 2024
    Assignee: CENTER FOR ADVANCED META-MATERIALS
    Inventors: Yong June Kim, Hyun June Jung, Se Jeong Won, Hak Joo Lee
  • Patent number: 10447376
    Abstract: A communication method in a wireless communication system includes receiving, by a resonator unit of a first signal transfer apparatus, a wireless signal transmitted from a transmission apparatus, acquiring resonance energy from the wireless signal using at least one of a matcher unit and the resonator unit of the first signal transfer apparatus, transferring the wireless signal to one end of a transmission line via the matcher unit of the first signal transfer apparatus using the acquired resonance energy, transferring the wireless signal to a second signal transfer apparatus connected to an opposite end of the transmission line, and transmitting the wireless signal to a reception apparatus having a wireless link established with the second signal transfer apparatus using a matcher unit and a resonator unit of the second signal transfer apparatus.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: October 15, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hak June Lee, Seung Il Myong, Hoe Sung Yang, Kang Bok Lee
  • Publication number: 20190288769
    Abstract: A communication method in a wireless communication system includes receiving, by a resonator unit of a first signal transfer apparatus, a wireless signal transmitted from a transmission apparatus, acquiring resonance energy from the wireless signal using at least one of a matcher unit and the resonator unit of the first signal transfer apparatus, transferring the wireless signal to one end of a transmission line via the matcher unit of the first signal transfer apparatus using the acquired resonance energy, transferring the wireless signal to a second signal transfer apparatus connected to an opposite end of the transmission line, and transmitting the wireless signal to a reception apparatus having a wireless link established with the second signal transfer apparatus using a matcher unit and a resonator unit of the second signal transfer apparatus.
    Type: Application
    Filed: February 1, 2019
    Publication date: September 19, 2019
    Inventors: Hak June LEE, Seung Il MYONG, Hoe Sung YANG, Kang Bok LEE