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Seoul, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Remote electrical equipment power source
Patent number
7,884,507
Issue date
Feb 8, 2011
Sei-Joo Jang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Polymer bulk acoustic resonator
Patent number
7,741,754
Issue date
Jun 22, 2010
Sei-Joo Jang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Polymer bulk acoustic resonator
Patent number
7,486,003
Issue date
Feb 3, 2009
Sei-Joo Jang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Polymer bulk acoustic resonator
Patent number
7,362,035
Issue date
Apr 22, 2008
The Penn State Research Foundation
Sei-Joo Jang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dielectric resonator loaded metal cavity filter
Patent number
6,975,181
Issue date
Dec 13, 2005
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dielectric filter for filtering out unwanted higher order frequency...
Patent number
6,794,955
Issue date
Sep 21, 2004
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dielectric filter for filtering out unwanted higher order frequency...
Patent number
6,670,867
Issue date
Dec 30, 2003
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dielectric filter for filtering out unwanted higher order frequency...
Patent number
6,650,201
Issue date
Nov 18, 2003
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dielectric filter for filtering out unwanted higher order frequency...
Patent number
6,563,397
Issue date
May 13, 2003
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dielectric filter for filtering out unwanted higher order frequency...
Patent number
6,552,628
Issue date
Apr 22, 2003
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dual block ceramic resonator filter having common electrode definin...
Patent number
5,614,875
Issue date
Mar 25, 1997
Dae Ryun Electronics, Inc.
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
MULTI MODE POWER OUTPUT MODULE AND METHOD OF USE WITH AN RF SIGNAL...
Publication number
20110074504
Publication date
Mar 31, 2011
Sei-Joo Jang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FLEXIBLE WIRELESS NETWORK SYSTEM AND METHOD OF USE
Publication number
20110076974
Publication date
Mar 31, 2011
Sei-Joo Jang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AMPLIFICATION SYSTEM FOR INTERFERENCE SUPPRESSION IN WIRELESS COMMU...
Publication number
20100130145
Publication date
May 27, 2010
Sei-Joo Jang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AMPLIFICATION SYSTEM FOR INTERFERENCE SUPPRESSION IN WIRELESS COMMU...
Publication number
20100130154
Publication date
May 27, 2010
Sei-Joo Jang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
REPULSIVE FORCE CONVERSION DRIVES AND CENTRIFUGAL FORCE CONVERSION
Publication number
20100079023
Publication date
Apr 1, 2010
Sei-Joo Jang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
BEARING ASSEMBLY
Publication number
20090010584
Publication date
Jan 8, 2009
Sei-Joo Jang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
REPULSIVE FORCE CONVERSION DRIVE
Publication number
20080296987
Publication date
Dec 4, 2008
Sei-Joo Jang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
REMOTE ELECTRICAL EQUIPMENT POWER SOURCE
Publication number
20080296982
Publication date
Dec 4, 2008
Sei-Joo Jang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
POLYMER BULK ACOUSTIC RESONATOR
Publication number
20080104813
Publication date
May 8, 2008
Sei-Joo Jang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
POLYMER BULK ACOUSTIC RESONATOR
Publication number
20070063793
Publication date
Mar 22, 2007
Sei-Joo Jang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Dielectric filter for filtering out unwanted higher order frequency...
Publication number
20050264378
Publication date
Dec 1, 2005
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Dielectric filter for filtering out unwanted higher order frequency...
Publication number
20040021532
Publication date
Feb 5, 2004
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Dielectric resonator loaded metal cavity filter
Publication number
20020180559
Publication date
Dec 5, 2002
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Dielectric filter for filtering out unwanted higher order frequency...
Publication number
20020093395
Publication date
Jul 18, 2002
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Dielectric filter for filtering out unwanted higher order frequency...
Publication number
20020067225
Publication date
Jun 6, 2002
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Dielectric filter for filtering out unwanted higher order frequency...
Publication number
20020060616
Publication date
May 23, 2002
Sei-Joo Jang
H01 - BASIC ELECTRIC ELEMENTS