Do; Chang Ho

Patent Applications and Registrations

Patent applications and USPTO patent grants for Do; Chang Ho.The latest application filed is for "signal receiver circuit".

Company Profile

1.122.134

Do; Chang Ho - Icheon-si KR
Do; Chang-Ho - Gyeonggi-do N/A KR
Do; Chang-Ho - Ichon-shi KR
Do; Chang-Ho - Kyoungki-do N/A KR
Do; Chang-Ho - Kyoungki KR
Do; Chang-Ho - Ichon 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
Internal voltage generation circuits Grant 9,136,018 - Lee , et al. September 15, 2	2015-09-15
Signal receiver circuit Grant 9,135,960 - Do September 15, 2	2015-09-15
Signal Receiver Circuit App 20140300392 - DO; Chang Ho	2014-10-09
Semiconductor memory device Grant 8,854,904 - Do October 7, 2	2014-10-07
Integrated circuit chip and semiconductor memory device Grant 8,842,486 - Do September 23, 2	2014-09-23
Semiconductor memory device and method for generating bit line equalizing signal Grant 8,830,770 - Do September 9, 2	2014-09-09
Multi-port Memory Device With Serial Input/output Interface App 20140192601 - Do; Chang-Ho	2014-07-10
Internal Voltage Generation Circuits App 20140145690 - LEE; Jae Wook ; et al.	2014-05-29
Semiconductor memory device, test circuit, and test operation method thereof Grant 8,713,383 - Do , et al. April 29, 2	2014-04-29
Semiconductor memory device, test circuit, and test operation method thereof Grant 8,612,812 - Do , et al. December 17, 2	2013-12-17
Semiconductor memory device, test circuit, and test operation method thereof Grant 8,595,575 - Do , et al. November 26, 2	2013-11-26
Clock control device for toggling an internal clock of a synchronous DRAM for reduced power consumption Grant RE44,590 - Do November 12, 2	2013-11-12
Semiconductor memory device Grant 8,553,479 - Lee , et al. October 8, 2	2013-10-08
Word line driving circuit, semiconductor memory device including the same, and method for testing the semiconductor memory device Grant 8,488,380 - Do July 16, 2	2013-07-16
Semiconductor Memory Device App 20130163352 - DO; Chang-Ho	2013-06-27
Multi-port memory device with serial input/output interface Grant 8,429,319 - Do April 23, 2	2013-04-23
Integrated Circuit Chip And Semiconductor Memory Device App 20130094302 - Do; Chang-Ho	2013-04-18
Internal signal monitoring device in semiconductor memory device and method for monitoring the same Grant 8,356,214 - Do January 15, 2	2013-01-15
Internal negative voltage generation device Grant 8,330,531 - Do December 11, 2	2012-12-11
Semiconductor memory device for increasing test efficiency by reducing the number of data pins used for a test Grant 8,320,194 - Kim , et al. November 27, 2	2012-11-27
Semiconductor Integrated Circuit And Semiconductor Memory Device Having Fuse Circuit App 20120275244 - DO; Chang-Ho	2012-11-01
Internal voltage generating circuit of semiconductor device Grant 8,299,846 - Do October 30, 2	2012-10-30
Apparatus and method for transmitting/receiving signals at high speed Grant 8,300,481 - Do , et al. October 30, 2	2012-10-30
Electrostatic discharge protection of semiconductor device Grant 8,274,770 - Do September 25, 2	2012-09-25
Semiconductor Memory Device App 20120195142 - LEE; Dong-Geun ; et al.	2012-08-02
Semiconductor memory device Grant 8,225,150 - Hur , et al. July 17, 2	2012-07-17
Semiconductor Memory Device And Method For Generating Bit Line Equalizing Signal App 20120176848 - DO; Chang-Ho	2012-07-12
Semiconductor Memory Device, Test Circuit, And Test Operation Method Thereof App 20120170382 - Do; Chang-Ho ; et al.	2012-07-05
Semiconductor Memory Device, Test Circuit, And Test Operation Method Thereof App 20120173942 - Do; Chang-Ho ; et al.	2012-07-05
Semiconductor Memory Device, Test Circuit, And Test Operation Method Thereof App 20120173937 - DO; Chang-Ho ; et al.	2012-07-05
Fuse circuit and semiconductor device having the same Grant 8,208,336 - Do June 26, 2	2012-06-26
Internal Negative Voltage Generation Device App 20120154024 - Do; Chang-Ho	2012-06-21
Internal voltage supplying device Grant 8,183,912 - Do May 22, 2	2012-05-22
Semiconductor memory device and method for generating bit line equalizing signal Grant 8,169,837 - Do May 1, 2	2012-05-01
Internal negative voltage generation device Grant 8,143,937 - Do March 27, 2	2012-03-27
Wordline driving circuit of semiconductor memory device Grant 8,139,437 - Kim , et al. March 20, 2	2012-03-20
Internal Voltage Generating Circuit Of Semiconductor Device App 20120032734 - DO; Chang-Ho	2012-02-09
Word Line Driving Circuit, Semiconductor Memory Device Including The Same, And Method For Testing The Semiconductor Memory Device App 20120033516 - DO; Chang-Ho	2012-02-09
Monitoring circuit for semiconductor device Grant 8,098,074 - Do , et al. January 17, 2	2012-01-17
Semiconductor memory device with signal aligning circuit Grant 8,054,702 - Hur , et al. November 8, 2	2011-11-08
Power up signal generation circuit and method for generating power up signal Grant 8,054,113 - Do November 8, 2	2011-11-08
Delay Circuit Of Semiconductor Device App 20110267126 - Do; Chang-Ho	2011-11-03
Word line driving circuit, semiconductor memory device including the same, and method for testing the semiconductor memory device Grant 8,045,394 - Do October 25, 2	2011-10-25
Internal voltage generating circuit of semiconductor device Grant 8,040,177 - Do October 18, 2	2011-10-18
Wordline Driving Circuit Of Semiconductor Memory Device App 20110249517 - Kim; Jae-Il ; et al.	2011-10-13
High voltage generator and word line driving high voltage generator of memory device Grant 8,035,441 - Kim , et al. October 11, 2	2011-10-11
Multi-port memory device with serial input/output interface Grant 8,031,552 - Chung , et al. October 4, 2	2011-10-04
Semiconductor Memory Device App 20110231717 - HUR; Hwang ; et al.	2011-09-22
Apparatus and method for testing semiconductor memory device Grant 8,024,628 - Do September 20, 2	2011-09-20
Apparatus And Method For Transmitting/receiving Signals At High Speed App 20110222359 - DO; Chang-Ho ; et al.	2011-09-15
Delay circuit of semiconductor device Grant 7,999,592 - Do August 16, 2	2011-08-16
Semiconductor memory device including reset control circuit Grant 7,986,581 - Do , et al. July 26, 2	2011-07-26
Wordline driving circuit of semiconductor memory device Grant 7,983,097 - Kim , et al. July 19, 2	2011-07-19
Semiconductor memory device Grant 7,979,758 - Hur , et al. July 12, 2	2011-07-12
Apparatus and method for transmitting/receiving signals at high speed Grant 7,974,142 - Do , et al. July 5, 2	2011-07-05
Internal Negative Voltage Generation Device App 20110140765 - DO; Chang-Ho	2011-06-16
Semiconductor Device And Signal Transmission Method Thereof App 20110128971 - Do; Chang-Ho	2011-06-02
Semiconductor memory device Grant 7,952,940 - Do May 31, 2	2011-05-31
Semiconductor device with a power down mode Grant 7,953,966 - Do May 31, 2	2011-05-31
Semiconductor device Grant 7,940,109 - Do May 10, 2	2011-05-10
Semiconductor memory device and method for reading/writing data thereof Grant 7,916,558 - Do March 29, 2	2011-03-29
Multi-port memory device having serial input/output interface Grant 7,915,745 - Im , et al. March 29, 2	2011-03-29
Power Up Signal Generation Circuit And Method For Generating Power Up Signal App 20110032010 - DO; Chang-Ho	2011-02-10
Semiconductor device for receiving external signal having receiving circuit using internal reference voltage Grant 7,880,510 - Do February 1, 2	2011-02-01
Circuit and method for initializing an internal logic unit in a semiconductor memory device Grant 7,872,511 - Chung , et al. January 18, 2	2011-01-18
Delay Circuit Of Semiconductor Device App 20100327935 - Do; Chang-Ho	2010-12-30
Internal Voltage Supplying Device App 20100320988 - Do; Chang-Ho	2010-12-23
Power up signal generation circuit and method for generating power up signal Grant 7,852,129 - Do December 14, 2	2010-12-14
Internal voltage generator Grant 7,843,256 - Do November 30, 2	2010-11-30
Multi-port memory device with serial input/output interface Grant 7,843,749 - Do November 30, 2	2010-11-30
Semiconductor memory device having I/O unit Grant 7,839,709 - Kim , et al. November 23, 2	2010-11-23
Fuse Circuit And Semiconductor Device Having The Same App 20100277999 - Do; Chang-Ho	2010-11-04
Internal Voltage Generating Circuit Of Semiconductor Device App 20100271115 - DO; Chang-Ho	2010-10-28
Test circuit for multi-port memory device Grant 7,808,851 - Hur , et al. October 5, 2	2010-10-05
Semiconductor Device App 20100244923 - DO; Chang-Ho	2010-09-30
Semiconductor memory device with signal aligning circuit Grant 7,804,723 - Hur , et al. September 28, 2	2010-09-28
Multi-port memory device having self-refresh mode Grant 7,787,322 - Im , et al. August 31, 2	2010-08-31
Semiconductor device and operating method thereof Grant 7,782,685 - Kim , et al. August 24, 2	2010-08-24
Semiconductor Device For Receiving External Signal Having Receiving Circuit Using Internal Reference Voltage App 20100207663 - DO; Chang-Ho	2010-08-19
Test operation of multi-port memory device Grant 7,773,439 - Do , et al. August 10, 2	2010-08-10
Semiconductor device Grant 7,764,106 - Do July 27, 2	2010-07-27
Internal voltage generating circuit of semiconductor device Grant 7,764,110 - Do July 27, 2	2010-07-27
High Voltage Generator And Word Line Driving High Voltage Generator Of Memory Device App 20100171545 - Kim; Jae-Il ; et al.	2010-07-08
Multi-port Memory Device With Serial Input/output Interface App 20100169583 - Chung; Jin-Il ; et al.	2010-07-01
Semiconductor Memory Device Including Reset Control Circuit App 20100149891 - Do; Chang-Ho ; et al.	2010-06-17
Multi-port Memory Device Having Serial Input/output Interface App 20100135057 - IM; Jae-Hyuk ; et al.	2010-06-03
Memory device having function of detecting bit line sense amp mismatch Grant 7,729,184 - Im , et al. June 1, 2	2010-06-01
Semiconductor device for receiving external signal having receiving circuit using internal reference voltage Grant 7,724,038 - Do May 25, 2	2010-05-25
Semiconductor Memory Device App 20100110811 - KIM; Jae-Il ; et al.	2010-05-06
High voltage generator and word line driving high voltage generator of memory device Grant 7,710,193 - Kim , et al. May 4, 2	2010-05-04
Semiconductor Memory Device And Method For Reading/writing Data Thereof App 20100103752 - DO; Chang-Ho	2010-04-29
Multi-port memory device with serial input/output interface Grant 7,701,800 - Chung , et al. April 20, 2	2010-04-20
Semiconductor memory device including reset control circuit Grant 7,701,790 - Do , et al. April 20, 2	2010-04-20
Multi-port memory device having serial input/output interface Grant 7,687,924 - Im , et al. March 30, 2	2010-03-30
Semiconductor Memory Device App 20100074035 - DO; Chang-Ho	2010-03-25
Semiconductor Memory Device App 20100067294 - DO; Chang-Ho	2010-03-18
Semiconductor memory device with refresh signal generator and its driving method Grant 7,672,184 - Im , et al. March 2, 2	2010-03-02
Semiconductor memory device and method for reading/writing data thereof Grant 7,663,943 - Do February 16, 2	2010-02-16
Read operation of multi-port memory device Grant 7,660,168 - Kim , et al. February 9, 2	2010-02-09
Multi-port Memory Device Having Self-refresh Mode App 20100027364 - Im; Jae-Hyuk ; et al.	2010-02-04
Electrostatic Discharge Protection Of Semiconductor Device App 20100008001 - DO; Chang-Ho	2010-01-14
Semiconductor Memory Device And Method For Generating Bit Line Equalizing Signal App 20100008162 - DO; Chang-Ho	2010-01-14
Semiconductor memory device Grant 7,646,656 - Do January 12, 2	2010-01-12
Semiconductor memory device having input device Grant 7,643,356 - Do January 5, 2	2010-01-05
Semiconductor memory device performing self refresh operation Grant 7,636,269 - Do December 22, 2	2009-12-22
Multi-port memory device Grant 7,636,272 - Kim , et al. December 22, 2	2009-12-22
Apparatus And Method For Testing Semiconductor Memory Device App 20090313513 - Do; Chang-Ho	2009-12-17
Circuit And Method For Initializing An Internal Logic Unit In A Semiconductor Memory Device App 20090302913 - Chung; Jin-Il ; et al.	2009-12-10
Monitoring Circuit For Semiconductor Device App 20090303650 - DO; Chang-Ho ; et al.	2009-12-10
Power Up Signal Generation Circuit And Method For Generating Power Up Signal App 20090302902 - DO; Chang-Ho	2009-12-10
Test Circuit For Multi-port Memory Device App 20090290436 - Hur; Hwang ; et al.	2009-11-26
Multi-port memory device having self-refresh mode Grant 7,619,942 - Im , et al. November 17, 2	2009-11-17
Multi-port memory device with serial input/output interface Grant 7,616,518 - Im , et al. November 10, 2	2009-11-10
Semiconductor Device And Operating Method Thereof App 20090273992 - KIM; Ki-Ho ; et al.	2009-11-05
Semiconductor Device Having Receiving Circuit Using Internal Reference Voltage App 20090273373 - DO; Chang-Ho	2009-11-05
Internal Voltage Generating Circuit Of Semiconductor Device App 20090267684 - DO; Chang-Ho	2009-10-29
Test circuit for multi-port memory device Grant 7,599,242 - Hur , et al. October 6, 2	2009-10-06
Internal Voltage Generator App 20090237152 - Do; Chang-Ho	2009-09-24
Apparatus and method for testing semiconductor memory device Grant 7,594,148 - Do September 22, 2	2009-09-22
Semiconductor Memory Device With Signal Aligning Circuit App 20090231933 - Hur; Hwang ; et al.	2009-09-17
Semiconductor memory device with reduced sense amplification time and operation method thereof Grant 7,586,803 - Do September 8, 2	2009-09-08
Circuit and method for initializing an internal logic unit in a semiconductor memory device Grant 7,586,350 - Chung , et al. September 8, 2	2009-09-08
Multi-port semiconductor memory device Grant 7,586,801 - Do , et al. September 8, 2	2009-09-08
Semiconductor Memory Device Having Shared Bit Line Sense Amplifier Scheme And Driving Method Thereof App 20090219768 - Kim; Dong-Keun ; et al.	2009-09-03
Semiconductor memory device App 20090219775 - Hur; Hwang ; et al.	2009-09-03
Multi-port memory device with serial input/output interface and control method thereof Grant 7,583,557 - Do September 1, 2	2009-09-01
Memory device with auxiliary precharge unit to improve precharge operation for bit line circuitry Grant 7,539,073 - Kim , et al. May 26, 2	2009-05-26
Wordline driving circuit of semiconductor memory device App 20090116304 - Kim; Jae-Il ; et al.	2009-05-07
Data input circuit of semiconductor memory device Grant 7,522,459 - Do April 21, 2	2009-04-21
Multi-port memory device with serial input/output interface App 20090086558 - Do; Chang-Ho	2009-04-02
Semiconductor memory device Grant 7,505,297 - Im , et al. March 17, 2	2009-03-17
Multi-port memory device App 20090067261 - Kim; Jae-Il ; et al.	2009-03-12
Apparatus and method for transmitting/receiving signals at high speed App 20090059689 - Do; Chang-Ho ; et al.	2009-03-05
Semiconductor memory device Grant 7,499,356 - Do March 3, 2	2009-03-03
Semiconductor memory device App 20090010078 - Do; Chang-Ho	2009-01-08
Semiconductor memory device having input device App 20090003089 - Do; Chang-Ho	2009-01-01
Semiconductor memory device having I/O unit App 20080310240 - Kim; Jae-Il ; et al.	2008-12-18
Semiconductor memory device and method for reading/writing data thereof App 20080304354 - Do; Chang-Ho	2008-12-11
Word line driving circuit, semiconductor memory device including the same, and method for testing the semiconductor memory device App 20080304344 - Do; Chang-Ho	2008-12-11
Semiconductor Device With A Power Down Mode App 20080288800 - DO; Chang-Ho	2008-11-20
Semiconductor memory device and method for driving bit line sense amplifier thereof Grant 7,450,453 - Do November 11, 2	2008-11-11
Semiconductor memory device Grant 7,450,448 - Do November 11, 2	2008-11-11
Multi-port memory device Grant 7,447,095 - Kim , et al. November 4, 2	2008-11-04
Multi-port memory device with serial input/output interface Grant 7,443,760 - Do October 28, 2	2008-10-28
Semiconductor memory device with reduced sense amplification time and operation method thereof App 20080239849 - Do; Chang-Ho	2008-10-02
Semiconductor memory device performing self refresh operation App 20080239855 - Do; Chang-Ho	2008-10-02
Oscillator configured to complete an output pulse after inactivation Grant 7,429,883 - Do September 30, 2	2008-09-30
Semiconductor device with a power down mode Grant 7,418,612 - Do August 26, 2	2008-08-26
Internal voltage generator capable of regulating an internal voltage of a semiconductor memory device Grant 7,414,897 - Do August 19, 2	2008-08-19
Semiconductor memory device with internal power supply Grant 7,414,898 - Do August 19, 2	2008-08-19
Multi-port semiconductor memory device App 20080181037 - Do; Chang-Ho ; et al.	2008-07-31
Semiconductor memory device with refresh signal generator and its driving method App 20080159039 - Im; Jae-Hyuk ; et al.	2008-07-03
Semiconductor memory device performing self refresh operation Grant 7,394,712 - Do July 1, 2	2008-07-01
Circuit and method for fuse disposing in a semiconductor memory device Grant 7,395,475 - Do July 1, 2	2008-07-01
Internal voltage generator capable of regulating an internal voltage of a semiconductor memory device Grant 7,391,658 - Do June 24, 2	2008-06-24
Semiconductor memory device Grant 7,388,797 - Do June 17, 2	2008-06-17
Delay circuit of semiconductor device App 20080106311 - Do; Chang-Ho	2008-05-08
Voltage monitoring device in semiconductor memory device App 20080089143 - Do; Chang-Ho	2008-04-17
Read operation of multi-port memory device App 20080074936 - Kim; Jae-Il ; et al.	2008-03-27
Internal signal monitoring device in semiconductor memory device and method for monitoring the same App 20080077830 - Do; Chang-Ho	2008-03-27
Multi-port semiconductor memory device Grant 7,349,272 - Do , et al. March 25, 2	2008-03-25
Multi-bank testing apparatus for a synchronous dram Grant RE40,172 - Do March 25, 2	2008-03-25
Memory device having function of detecting bit line sense amp mismatch App 20080056040 - Im; Jae-Hyuk ; et al.	2008-03-06
Semiconductor device App 20080042724 - Do; Chang-Ho	2008-02-21
Internal Voltage Generator Capable Of Regulating An Internal Voltage Of A Semiconductor Memory Device App 20080031059 - DO; Chang-Ho	2008-02-07
Internal Voltage Generator Capable Of Regulating An Internal Voltage Of A Semiconductor Memory Device App 20080031058 - DO; Chang-Ho	2008-02-07
Multi-port memory device with serial input/output interface App 20080005493 - Chung; Jin-Il ; et al.	2008-01-03
Internal voltage generator for a semiconductor memory device Grant 7,315,478 - Do January 1, 2	2008-01-01
Clock control device for toggling an internal clock of a synchronous DRAM for reduced power consumption Grant 7,307,913 - Do December 11, 2	2007-12-11
Semiconductor memory device App 20070260925 - Do; Chang-Ho	2007-11-08
Semiconductor memory device performing self refresh operation App 20070253270 - Do; Chang-Ho	2007-11-01
Internal voltage generator capable of regulating an internal voltage of a semiconductor memory device Grant 7,289,377 - Do October 30, 2	2007-10-30
Multi-port memory device with serial input/output interface and control method thereof App 20070242553 - Do; Chang-Ho	2007-10-18
Multi-port memory device having serial input/output interface App 20070241465 - Im; Jae-Hyuk ; et al.	2007-10-18
Test operation of multi-port memory device App 20070245093 - Do; Chang-Ho ; et al.	2007-10-18
Bit line sense amplifier and semiconductor memory device having the same Grant 7,283,412 - Do October 16, 2	2007-10-16
Apparatus for delivering inputted signal data Grant 7,279,934 - Do October 9, 2	2007-10-09
Method for measuring offset voltage of sense amplifier and semiconductor employing the method Grant 7,266,030 - Do , et al. September 4, 2	2007-09-04
Semiconductor memory device with internal voltage generator Grant 7,254,065 - Do August 7, 2	2007-08-07
Apparatus for generating internal voltage in test mode and its method Grant 7,245,176 - Do July 17, 2	2007-07-17
Semiconductor memory device with signal aligning circuit App 20070126479 - Hur; Hwang ; et al.	2007-06-07
Semiconductor memory device Grant 7,212,461 - Kim , et al. May 1, 2	2007-05-01
Semiconductor memory device App 20070076500 - Im; Jae-Hyuk ; et al.	2007-04-05
Multi-port memory device with serial input/output interface App 20070070778 - Do; Chang-Ho	2007-03-29
Semiconductor memory device sharing sense amplifier App 20070070756 - Kim; Dong-Keun ; et al.	2007-03-29
Internal voltage supplying device App 20070070725 - Do; Chang-Ho	2007-03-29
Multi-port semiconductor memory device App 20070070743 - Do; Chang-Ho ; et al.	2007-03-29
Semiconductor memory device having shared bit line sense amplifier scheme and driving method thereof App 20070070755 - Kim; Dong-Keun ; et al.	2007-03-29
Internal voltage generator App 20070069808 - Do; Chang-Ho	2007-03-29
Semiconductor memory device and driving method thereof App 20070069786 - Chung; Jin-Il ; et al.	2007-03-29
High voltage generator and word line driving high voltage generator of memory device App 20070069804 - Kim; Jae-Il ; et al.	2007-03-29
Flip-flop circuit App 20070069789 - Do; Chang-Ho ; et al.	2007-03-29
Semiconductor memory device including reset control circuit App 20070070727 - Do; Chang-Ho ; et al.	2007-03-29
Semiconductor memory device App 20070070675 - Do; Chang-Ho	2007-03-29
Multi-port memory device having self-refresh mode App 20070070767 - Im; Jae-Hyuk ; et al.	2007-03-29
Multi-port memory device with serial input/output interface App 20070070795 - Do; Chang-Ho	2007-03-29
Semiconductor memory device App 20070070793 - Do; Chang-Ho	2007-03-29
Test circuit for multi-port memory device App 20070074064 - Hur; Hwang ; et al.	2007-03-29
Semiconductor memory device App 20070070674 - Im; Jae-Hyuk ; et al.	2007-03-29
Multi-port memory device App 20070073982 - Kim; Jae-Il ; et al.	2007-03-29
Multi-port memory device with serial input/output interface App 20070073981 - Im; Jae-Hyuk ; et al.	2007-03-29
Semiconductor memory device and method for driving bit line sense amplifier thereof App 20070070752 - Do; Chang-Ho	2007-03-29
Clock control device App 20070070791 - Do; Chang-Ho	2007-03-29
High voltage generator in semiconductor memory device App 20070046381 - Do; Chang-Ho	2007-03-01
Data input circuit of semiconductor memory device App 20060245101 - Do; Chang-Ho	2006-11-02
Semiconductor memory device App 20060245284 - Do; Chang-Ho	2006-11-02
Power-up circuit in semiconductor memory device Grant 7,123,062 - Do October 17, 2	2006-10-17
High voltage generator in semiconductor memory device Grant 7,123,079 - Do October 17, 2	2006-10-17
Semiconductor memory device App 20060221742 - Kim; Jee-Yul ; et al.	2006-10-05
Semiconductor device with a power down mode App 20060224909 - Do; Chang-Ho	2006-10-05
Semiconductor memory device Grant 7,099,223 - Do August 29, 2	2006-08-29
High voltage generator for use in semiconductor memory device App 20060181334 - Do; Chang-Ho	2006-08-17
Semiconductor memory device App 20060140018 - Do; Chang-Ho	2006-06-29
Semiconductor memory device with internal voltage generator App 20060140038 - Do; Chang-Ho	2006-06-29
Internal voltage generator for a semiconductor memory device App 20060140020 - Do; Chang-Ho	2006-06-29
Internal voltage generating circuit in semiconductor memory device Grant 7,068,547 - Do June 27, 2	2006-06-27
Method for measuring offset voltage of sense amplifier and semiconductor employing the method App 20060092735 - Do; Chang-Ho ; et al.	2006-05-04
Internal voltage generator App 20060091937 - Do; Chang-Ho	2006-05-04
Power supply circuit of delay locked loop App 20060091939 - Do; Chang-Ho ; et al.	2006-05-04
Semiconductor memory device with internal power supply App 20060092745 - Do; Chang-Ho	2006-05-04
Apparatus and method for testing semiconductor memory device App 20060041804 - Do; Chang-Ho	2006-02-23
Apparatus for delivering inputted signal or data App 20060022706 - Do; Chang-Ho	2006-02-02
Bit line sense amplifier and semiconductor memory device having the same App 20060023534 - Do; Chang-Ho	2006-02-02
Apparatus for generating internal voltage in test mode and its method App 20060001478 - Do; Chang-Ho	2006-01-05
Memory device with test mode for controlling of bitline sensing margin time Grant 6,980,476 - Do December 27, 2	2005-12-27
Internal voltage generator App 20050254333 - Do, Chang-Ho	2005-11-17
Semiconductor memory device App 20050248672 - Kim, Dong-Keun ; et al.	2005-11-10
Power-up circuit in semiconductor memory device Grant 6,961,270 - Do November 1, 2	2005-11-01
Test mode flag signal generator of semiconductor memory device Grant 6,950,357 - Do September 27, 2	2005-09-27
High voltage generator in semiconductor memory device App 20050206440 - Do, Chang-Ho	2005-09-22
Power-up circuit in semiconductor memory device App 20050140404 - Do, Chang-Ho	2005-06-30
Power-up circuit in semiconductor memory device App 20050141287 - Do, Chang-Ho	2005-06-30
Power-up circuit semiconductor memory device App 20050140405 - Do, Chang-Ho ; et al.	2005-06-30
Internal voltage generating circuit in semiconductor memory device App 20050141292 - Do, Chang-Ho	2005-06-30
Test mode flag signal generator of semiconductor memory device App 20040252564 - Do, Chang-Ho	2004-12-16
Internal voltage generator App 20040251957 - Do, Chang Ho	2004-12-16
Internal voltage generator for semiconductor device App 20040232957 - Do, Chang Ho	2004-11-25
Circuit and method for fuse disposing in a semiconductor memory device App 20040228191 - Do, Chang-Ho	2004-11-18
Memory device with test mode for controlling of bitline sensing margin time App 20040218438 - Do, Chang-Ho	2004-11-04
Row redundancy circuit using a fuse box independent of banks Grant 6,353,570 - Hwang , et al. March 5, 2	2002-03-05
Semiconductor memory device employing row repair scheme App 20010023093 - Do, Chang-Ho ; et al.	2001-09-20
Row redundancy circuit using a fuse box independent of banks App 20010005335 - Hwang, Soo-Man ; et al.	2001-06-28