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Eung-Soon Chang
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Seoul, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Locking device for two-wheeled vehicle
Patent number
6,994,192
Issue date
Feb 7, 2006
Eung-Soon Chang
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Antenna for mobile communication terminal
Patent number
6,608,606
Issue date
Aug 19, 2003
Eung-Soon Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Antenna for use of portable wireless communication system
Patent number
6,573,870
Issue date
Jun 3, 2003
Eung-Soon Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Antenna for portable wireless communications system and a method fo...
Patent number
6,515,637
Issue date
Feb 4, 2003
Eung-Soon Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Antenna for radio transmitter and receiver
Patent number
6,211,827
Issue date
Apr 3, 2001
Eung-Soon Chang
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Folded monopole antenna
Publication number
20060001592
Publication date
Jan 5, 2006
Eung-Soon Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Antenna for television phone
Publication number
20050280583
Publication date
Dec 22, 2005
Eung-Soon Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Device for reducing the electromagnetic wave of a mobile communicat...
Publication number
20050099342
Publication date
May 12, 2005
Eung-Soon Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Mobile phone
Publication number
20050020324
Publication date
Jan 27, 2005
Eung-Soon Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Robbed vehicle information communication system for vehicle drivers
Publication number
20040183657
Publication date
Sep 23, 2004
Eung-Soon Chang
G08 - SIGNALLING