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Cheul Hee KOO
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Icheon-si Gyeonggi-do, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Program method of nonvolatile memory device for having dense thresh...
Patent number
9,627,070
Issue date
Apr 18, 2017
SK hynix Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor memory device with high threshold voltage distributio...
Patent number
9,251,901
Issue date
Feb 2, 2016
SK Hynix Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Program method of nonvolatile memory device for having dense thresh...
Patent number
9,082,487
Issue date
Jul 14, 2015
SK Hynix Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor device including current compensator
Patent number
8,908,462
Issue date
Dec 9, 2014
SK Hynix Inc.
Sam Kyu Won
G05 - CONTROLLING REGULATING
Information
Patent Grant
Memory and method for operating the same
Patent number
8,902,646
Issue date
Dec 2, 2014
SK Hynix Inc.
Cheul-Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonvolatile memory device, operating method thereof, and data stora...
Patent number
8,743,632
Issue date
Jun 3, 2014
SK Hynix Inc.
Byung Ryul Kim
G11 - INFORMATION STORAGE
Information
Patent Grant
Circuit for precharging bit line and nonvolatile memory device incl...
Patent number
8,582,362
Issue date
Nov 12, 2013
Hynix Semiconductor Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Circuit for controlling redundancy in semiconductor memory apparatus
Patent number
8,339,880
Issue date
Dec 25, 2012
Hynix Semiconductor Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Duty cycle correcting circuit and duty cycle correcting method
Patent number
8,207,771
Issue date
Jun 26, 2012
Hynix Semiconductor Inc.
Cheul-Hee Koo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Nonvolatile memory device for preventing a source line bouncing phe...
Patent number
8,184,482
Issue date
May 22, 2012
Hynix Semiconductor Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Page buffer circuit, nonvolatile memory device including the page b...
Patent number
8,085,602
Issue date
Dec 27, 2011
Hynix Semiconductor Inc.
Chang Won Yang
G11 - INFORMATION STORAGE
Information
Patent Grant
Page buffer circuit, nonvolatile device including the same, and met...
Patent number
7,903,481
Issue date
Mar 8, 2011
Hynix Semiconductor Inc.
Jun Rye Rho
G11 - INFORMATION STORAGE
Information
Patent Grant
Page buffer circuit, nonvolatile memory device including the page b...
Patent number
7,898,876
Issue date
Mar 1, 2011
Hynix Semiconductor Inc.
Chang Won Yang
G11 - INFORMATION STORAGE
Information
Patent Grant
Clock tree circuit and semiconductor memory device using the same,...
Patent number
7,870,414
Issue date
Jan 11, 2011
Hynix Semiconductor Inc.
Cheul Hee Koo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
On die termination circuit and method for calibrating the same
Patent number
7,782,078
Issue date
Aug 24, 2010
Hynix Semiconductor Inc.
Cheul-Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Address path circuit with row redundant scheme
Patent number
7,679,983
Issue date
Mar 16, 2010
Hynix Semiconductor Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Duty cycle correcting circuit and duty cycle correcting method
Patent number
7,675,337
Issue date
Mar 9, 2010
Hynix Semiconductor Inc.
Cheul-Hee Koo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Synchronous memory device with output driver controlller
Patent number
7,511,546
Issue date
Mar 31, 2009
Hynix Semiconductor Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Address path circuit with row redundant scheme
Patent number
7,391,660
Issue date
Jun 24, 2008
Hynix Semiconductor Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Grant
Duty cycle corrector of delay locked loop
Patent number
7,391,248
Issue date
Jun 24, 2008
Hynix Semiconductor Inc.
Cheul Hee Koo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor memory device
Patent number
7,099,228
Issue date
Aug 29, 2006
Hynix Semiconductor Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
NONVOLATILE MEMORY DEVICE, PROGRAM METHOD THEREOF, AND DATA PROCESS...
Publication number
20150279469
Publication date
Oct 1, 2015
SK HYNIX INC.
Cheul Hee KOO
G11 - INFORMATION STORAGE
Information
Patent Application
SEMICONDUCTOR MEMORY DEVICE AND OPERATING METHOD THEREOF
Publication number
20140169096
Publication date
Jun 19, 2014
SK HYNIX INC.
Cheul Hee KOO
G11 - INFORMATION STORAGE
Information
Patent Application
SEMICONDUCTOR DEVICE INCLUDING CURRENT COMPENSATOR
Publication number
20140160864
Publication date
Jun 12, 2014
SK HYNIX INC.
Sam Kyu WON
G11 - INFORMATION STORAGE
Information
Patent Application
NONVOLATILE MEMORY DEVICE, OPERATING METHOD THEREOF, AND DATA STORA...
Publication number
20140010026
Publication date
Jan 9, 2014
SK HYNIX INC.
Byung Ryul KIM
G11 - INFORMATION STORAGE
Information
Patent Application
MEMORY AND METHOD FOR OPERATING THE SAME
Publication number
20130128661
Publication date
May 23, 2013
Cheul-Hee KOO
G11 - INFORMATION STORAGE
Information
Patent Application
NONVOLATILE MEMORY DEVICE, PROGRAM METHOD THEREOF, AND DATA PROCESS...
Publication number
20130077407
Publication date
Mar 28, 2013
Hynix Semiconductor Inc.
Cheul Hee KOO
G11 - INFORMATION STORAGE
Information
Patent Application
DUTY CYCLE CORRECTING CIRCUIT AND DUTY CYCLE CORRECTING METHOD
Publication number
20110227623
Publication date
Sep 22, 2011
Hynix Semiconductor Inc.
Cheul Hee Koo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
CIRCUIT FOR CONTROLLING REDUNDANCY IN SEMICONDUCTOR MEMORY APPARATUS
Publication number
20110149665
Publication date
Jun 23, 2011
Hynix Semiconductor Inc.
Cheul Hee KOO
G11 - INFORMATION STORAGE
Information
Patent Application
PAGE BUFFER CIRCUIT, NONVOLATILE MEMORY DEVICE INCLUDING THE PAGE B...
Publication number
20110122707
Publication date
May 26, 2011
Chang Won Yang
G11 - INFORMATION STORAGE
Information
Patent Application
CIRCUIT FOR PRECHARGING BIT LINE AND NONVOLATILE MEMORY DEVICE INCL...
Publication number
20100302867
Publication date
Dec 2, 2010
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Application
NONVOLATILE MEMORY DEVICE
Publication number
20100284225
Publication date
Nov 11, 2010
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Application
PAGE BUFFER CIRCUIT, NONVOLATILE MEMORY DEVICE INCLUDING THE PAGE B...
Publication number
20100142277
Publication date
Jun 10, 2010
Chang Won Yang
G11 - INFORMATION STORAGE
Information
Patent Application
PAGE BUFFER CIRCUIT, NONVOLATILE DEVICE INCLUDING THE SAME, AND MET...
Publication number
20100142278
Publication date
Jun 10, 2010
Jun Rye Rho
G11 - INFORMATION STORAGE
Information
Patent Application
CIRCUIT AND METHOD FOR CONTROLLING REDUNDANCY IN SEMICONDUCTOR MEMO...
Publication number
20090213671
Publication date
Aug 27, 2009
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Application
On die termination circuit and method for calibrating the same
Publication number
20080284467
Publication date
Nov 20, 2008
Hynix Semiconductor Inc.
Cheul-Hee Koo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Duty cycle correcting circuit and duty cycle correcting method
Publication number
20080191767
Publication date
Aug 14, 2008
Hynix Semiconductor Inc.
Cheul Hee Koo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Clock tree circuit and semiconductor memory device using the same,...
Publication number
20080005606
Publication date
Jan 3, 2008
Cheul Hee Koo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Address Path Circuit With Row Redundant Scheme
Publication number
20070147145
Publication date
Jun 28, 2007
HYNIX SEMICONDUCTOR INC.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Application
Address Path Circuit with Row Redundant Scheme
Publication number
20070081413
Publication date
Apr 12, 2007
Hynix Semiconductor Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Application
Synchronous memory device with output driver controller
Publication number
20070002675
Publication date
Jan 4, 2007
Cheul Hee Koo
G11 - INFORMATION STORAGE
Information
Patent Application
DUTY CYCLE CORRECTOR OF DELAY LOCKED LOOP
Publication number
20060114041
Publication date
Jun 1, 2006
Hynix Semiconductor Inc.
Cheul Hee Koo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor memory device
Publication number
20060050601
Publication date
Mar 9, 2006
Hynix Semiconductor Inc.
Cheul Hee Koo
G11 - INFORMATION STORAGE