Hwang; Cheol-gyu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hwang; Cheol-gyu.The latest application filed is for "waveguide of multi-layer metal structure and manufacturing method thereof".

Company Profile

0.6.6

Hwang; Cheol-gyu - Daejeon-si N/A KR
Hwang; Cheol-gyu - Suwon-si KR
Hwang; Cheol-gyu - Gyeonggi-do 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
Multi-layer waveguide structure having spaced apart first and second signal units of different widths and heights Grant 8,497,742 - Lee , et al. July 30, 2	2013-07-30
Resonator and bandpass filter having overlay electromagnetic bandgap (EBG) structure, and method of manufacturing the resonator Grant 8,004,375 - Hwang , et al. August 23, 2	2011-08-23
Overlay electromagnetic bandgap (EBG) structure and method of manufacturing the same Grant 7,880,567 - Hwang , et al. February 1, 2	2011-02-01
Switched beam-forming apparatus and method using multi-beam combining scheme Grant 7,859,460 - Hwang , et al. December 28, 2	2010-12-28
Waveguide Of Multi-layer Metal Structure And Manufacturing Method Thereof App 20100244997 - Lee; Dong-hyun ; et al.	2010-09-30
Multilayered coplanar waveguide filter unit and method of manufacturing the same Grant 7,795,996 - Choi , et al. September 14, 2	2010-09-14
Resonator And Bandpass Filter Having Overlay Electromagnetic Bandgap (ebg) Structure, And Method Of Manufacturing The Resonator App 20090212885 - HWANG; Cheol-gyu ; et al.	2009-08-27
Switched Beam-forming Apparatus And Method Using Multi-beam Combining Scheme App 20090207077 - HWANG; Cheol-gyu ; et al.	2009-08-20
Broadband Microstrip Balun And Method Of Manufacturing The Same App 20090140823 - Lee; Dong-hyun ; et al.	2009-06-04
Multilayered Coplanar Waveguide Filter Unit And Method Of Manufacturing The Same App 20090121811 - CHOI; Sung-tae ; et al.	2009-05-14
Overlay Electromagnetic Bandgap (ebg) Structure And Method Of Manufacturing The Same App 20090096552 - HWANG; Cheol-gyu ; et al.	2009-04-16

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