Chang W. Ha

Person

Ichonkun, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Support unit, apparatus and method for treating a substrate
- Patent number 11,127,573
- Issue date Sep 21, 2021
- Semes Co., Ltd.
- Doo Ho Lim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Support unit, apparatus and method for treating a substrate
- Patent number 10,607,818
- Issue date Mar 31, 2020
- Semes Co., Ltd.
- Doo Ho Lim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Field sequential color mode liquid crystal display
- Patent number 8,643,587
- Issue date Feb 4, 2014
- Samsung Electronics Co., Ltd.
- Chang Woo Ha
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Dimming buck type LED driving apparatus
- Patent number 8,018,177
- Issue date Sep 13, 2011
- Samsung Electro-Mechanics Co., Ltd.
- Bon Ahm Goo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Drive device of color LED backlight
- Patent number 7,800,566
- Issue date Sep 21, 2010
- Samsung Electro-Mechanics Co., Ltd.
- Chang Woo Ha
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Liquid crystal display backlight inverter
- Patent number 7,746,318
- Issue date Jun 29, 2010
- Samsung Electro-Mechanics Co., Ltd.
- Sang Cheol Shin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Dual mode clock generator
- Patent number 7,741,893
- Issue date Jun 22, 2010
- Samsung Electro-Mechanics Co., Ltd.
- Jeong In Cheon
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Driving circuit for LCD backlight
- Patent number 7,737,938
- Issue date Jun 15, 2010
- Samsung Electro-Mechanics Co., Ltd.
- Jung Chul Gong
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Control circuit of DC-DC converter
- Patent number 7,646,181
- Issue date Jan 12, 2010
- Samsung Electro-Mechanics Co., Ltd.
- Jeong In Cheon
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage controlled oscillator with duty correction
- Patent number 7,515,004
- Issue date Apr 7, 2009
- Samsung Electro-Mechanics Co., Ltd.
- Sang Cheol Shin
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency-control-type piezo actuator driving circuit and method of...
- Patent number 7,471,029
- Issue date Dec 30, 2008
- Samsung Electro-Mechanics Co., Ltd.
- Chang Woo Ha
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage comparator having hysteresis characteristics
- Patent number 7,417,471
- Issue date Aug 26, 2008
- Samsung Electro-Mechanics Co., Ltd.
- Jung Chul Gong
- G01 - MEASURING TESTING
Information Patent Grant
Driving apparatus for CCFL
- Patent number 7,285,922
- Issue date Oct 23, 2007
- Samsung Electro-Mechanics Co., Ltd.
- Jung Chul Gong
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Piezo actuator driving circuit
- Patent number 7,271,520
- Issue date Sep 18, 2007
- Samsung Electro-Mechanics Co., Ltd.
- Byoung Own Min
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Offset compensation circuit for a monitoring photodiode
- Patent number 7,209,001
- Issue date Apr 24, 2007
- Samsung Electro-Mechanics Co., Ltd.
- Chang Woo Ha
- G11 - INFORMATION STORAGE
Information Patent Grant
Current-voltage transforming circuit employing limiter circuit
- Patent number 7,057,423
- Issue date Jun 6, 2006
- Samsung Electro-Mechanics Co., Ltd.
- Chang-Woo Ha
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Current to voltage conversion circuit for photo detector integrated...
- Patent number 6,864,724
- Issue date Mar 8, 2005
- Samsung Electro-Mechanics Co., Ltd.
- Sang-Suk Kim
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Circuit of sensing a fuse cell in a flash memory
- Patent number 6,021,067
- Issue date Feb 1, 2000
- Hyundai Electronics Industries Co., Ltd.
- Chang Wan Ha
- G11 - INFORMATION STORAGE
Information Patent Grant
Repair fuse circuit in a flash memory device
- Patent number 5,852,580
- Issue date Dec 22, 1998
- Hyundai Electronics Industries Co., Ltd.
- Chang Wan Ha
- G11 - INFORMATION STORAGE
Information Patent Grant
Flash memory device using an operational circuit for bit-by-bit ver...
- Patent number 5,784,317
- Issue date Jul 21, 1998
- Hyundai Electronics Industries Co., Ltd.
- Chang Wan Ha
- G11 - INFORMATION STORAGE
Information Patent Grant
Sensing circuit to enhance sensing margin
- Patent number 5,617,354
- Issue date Apr 1, 1997
- Hyundai Electronics Industries Co., Ltd.
- Byoung K. Cha
- G11 - INFORMATION STORAGE
Information Patent Grant
Real-only memory device incorporating storage memory array and secu...
- Patent number 5,406,519
- Issue date Apr 11, 1995
- Hyundai Electronics Industries, Co., Ltd.
- Chang W. Ha
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Memory devices having NAND type cells using both reference cells an...
- Patent number 5,297,079
- Issue date Mar 22, 1994
- Hyundai Electronics Industries Co., Ltd.
- Chang W. Ha
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
SUPPORT UNIT, APPARATUS AND METHOD FOR TREATING A SUBSTRATE
- Publication number 20200194241
- Publication date Jun 18, 2020
- SEMES CO., LTD.
- DOO HO LIM
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SUPPORT UNIT, APPARATUS AND METHOD FOR TREATING A SUBSTRATE
- Publication number 20170345625
- Publication date Nov 30, 2017
- SEMES CO., LTD.
- DOO HO LIM
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Dimming buck type LED driving apparatus
- Publication number 20090322247
- Publication date Dec 31, 2009
- Samsung Electro-Mechanics CO., LTD.
- Bon Ahm Goo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
DUAL MODE CLOCK GENERATOR
- Publication number 20080164925
- Publication date Jul 10, 2008
- SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Jeong In CHEON
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CONTROL CIRCUIT OF DC-DC CONVERTER
- Publication number 20080106243
- Publication date May 8, 2008
- SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Jeong In CHEON
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
DRIVING CIRCUIT FOR LCD BACKLIGHT
- Publication number 20070236445
- Publication date Oct 11, 2007
- SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Jung Chul GONG
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
LIQUID CRYSTAL DISPLAY BACKLIGHT INVERTER
- Publication number 20070228991
- Publication date Oct 4, 2007
- SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Sang Cheol Shin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
DRIVE DEVICE OF COLOR LED BACKLIGHT
- Publication number 20070200513
- Publication date Aug 30, 2007
- SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Chang Woo Ha
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
DRIVE DEVICE OF COLOR LED BACKLIGHT
- Publication number 20070182698
- Publication date Aug 9, 2007
- Samsung Electro-Mechanics Co., Ltd.
- Chang Woo HA
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
FIELD SEQUENTIAL COLOR MODE LIQUID CRYSTAL DISPLAY
- Publication number 20070182699
- Publication date Aug 9, 2007
- Samsung Electro-Mechanics Co., Ltd.
- Chang Woo HA
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Frequency-control-type piezo actuator driving circuit and method of...
- Publication number 20070029896
- Publication date Feb 8, 2007
- Chang Woo Ha
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
VOLTAGE COMPARATOR HAVING HYSTERESIS CHARACTERISTICS
- Publication number 20070030036
- Publication date Feb 8, 2007
- SAMSUNG ELECTRO-MECHANICS CO., LTD.
- JUNG CHUL GONG
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VOLTAGE CONTROLLED OSCILLATOR WITH DUTY CORRECTION
- Publication number 20070030081
- Publication date Feb 8, 2007
- Samsung Electro-Mechanics Co., Ltd.
- Sang Cheol Shin
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Piezo actuator driving circuit
- Publication number 20070008357
- Publication date Jan 11, 2007
- Byoung Own Min
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DRIVING APPARATUS FOR CCFL
- Publication number 20060279235
- Publication date Dec 14, 2006
- Samsung Electro-Mechanics Co., Ltd.
- Jung Chul GONG
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Offset compensation circuit for a monitoring photodiode
- Publication number 20060119424
- Publication date Jun 8, 2006
- Samsung Electro-Mechanics Co., Ltd.
- Chang Woo Ha
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Current-voltage transforming circuit employing limiter circuit
- Publication number 20050046448
- Publication date Mar 3, 2005
- Chang-Woo Ha
- H03 - BASIC ELECTRONIC CIRCUITRY

Chang W. Ha

Person

Patents Grantslast 30 patents

Support unit, apparatus and method for treating a substrate

Support unit, apparatus and method for treating a substrate

Field sequential color mode liquid crystal display

Dimming buck type LED driving apparatus

Drive device of color LED backlight

Liquid crystal display backlight inverter

Dual mode clock generator

Driving circuit for LCD backlight

Control circuit of DC-DC converter

Voltage controlled oscillator with duty correction

Frequency-control-type piezo actuator driving circuit and method of...

Voltage comparator having hysteresis characteristics

Driving apparatus for CCFL

Piezo actuator driving circuit

Offset compensation circuit for a monitoring photodiode

Current-voltage transforming circuit employing limiter circuit

Current to voltage conversion circuit for photo detector integrated...

Circuit of sensing a fuse cell in a flash memory

Repair fuse circuit in a flash memory device

Flash memory device using an operational circuit for bit-by-bit ver...

Sensing circuit to enhance sensing margin

Real-only memory device incorporating storage memory array and secu...

Memory devices having NAND type cells using both reference cells an...

Patents Applicationslast 30 patents

SUPPORT UNIT, APPARATUS AND METHOD FOR TREATING A SUBSTRATE

SUPPORT UNIT, APPARATUS AND METHOD FOR TREATING A SUBSTRATE

Dimming buck type LED driving apparatus

DUAL MODE CLOCK GENERATOR

CONTROL CIRCUIT OF DC-DC CONVERTER

DRIVING CIRCUIT FOR LCD BACKLIGHT

LIQUID CRYSTAL DISPLAY BACKLIGHT INVERTER

DRIVE DEVICE OF COLOR LED BACKLIGHT

DRIVE DEVICE OF COLOR LED BACKLIGHT

FIELD SEQUENTIAL COLOR MODE LIQUID CRYSTAL DISPLAY

Frequency-control-type piezo actuator driving circuit and method of...

VOLTAGE COMPARATOR HAVING HYSTERESIS CHARACTERISTICS

VOLTAGE CONTROLLED OSCILLATOR WITH DUTY CORRECTION

Piezo actuator driving circuit

DRIVING APPARATUS FOR CCFL

Offset compensation circuit for a monitoring photodiode

Current-voltage transforming circuit employing limiter circuit