Ji; Jeong Keun

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ji; Jeong Keun.The latest application filed is for "multiband and broadband antenna using metamaterials, and communication apparatus comprising the same".

Company Profile

0.5.7

Ji; Jeong Keun - Seoul N/A KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Meta material antenna using coupling in helical structure Grant 8,659,501 - Ryou , et al. February 25, 2	2014-02-25
Antenna using complex structure having periodic, vertical spacing between dielectric and magnetic substances Grant 8,581,796 - Ryou , et al. November 12, 2	2013-11-12
Multiband And Broadband Antenna Using Metamaterials, And Communication Apparatus Comprising The Same App 20120068901 - Ryou; Byung Hoon ; et al.	2012-03-22
Multiband And Broadband Antenna Using Metamaterials, And Communication Apparatus Comprising The Same App 20120056788 - Ryou; Byung Hoon ; et al.	2012-03-08
Meta Material Antenna Using Coupling In Helical Structure App 20110221653 - Ryou; Byung Hoon ; et al.	2011-09-15
Antenna Using Complex Structure Having Periodic, Vertical Spacing Between Dielectric And Magnetic Substances App 20110193760 - Ryou; Byung Hoon ; et al.	2011-08-11
Antenna With Complex Structure Of Periodic, Grating Arrangement Of Dielectric And Magnetic Substances App 20110187621 - Ryou; Byung Hoon ; et al.	2011-08-04
Antenna Using Complex Structure Having Perpendicular Period Between Dielectric And Magnetic Substance App 20110032168 - Ryou; Byung Hoon ; et al.	2011-02-10
Antenna Based On Dielectro-magnetic Composite Structure Having A Periodic Lattice App 20110032169 - Ryou; Byung Hoon ; et al.	2011-02-10
Laser diode for optoelectronic integrated circuit and a process for preparing the same Grant 5,721,750 - Kwon , et al. February 24, 1	1998-02-24

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