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Choul Joo KO
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Seoul, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor device and method of manufacturing the same
Patent number
10,910,493
Issue date
Feb 2, 2021
DB HITEK CO., LTD.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High voltage semiconductor device and method of manufacturing the same
Patent number
9,461,117
Issue date
Oct 4, 2016
DONGBU HITEK CO., LTD.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lateral double diffused metal oxide semiconductor device and method...
Patent number
9,048,132
Issue date
Jun 2, 2015
Dongbu Hitek Co., Ltd
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
LDMOS semiconductor device having guardring region disposed at side...
Patent number
8,754,474
Issue date
Jun 17, 2014
Dongbu Hitek Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lateral double diffused metal oxide semiconductor device and method...
Patent number
8,692,327
Issue date
Apr 8, 2014
Dongbu Hitek Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Drain extended MOS transistor and method for fabricating the same
Patent number
8,569,138
Issue date
Oct 29, 2013
Dongbu Hitek Co., Ltd.
Hee Bae Lee
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and method for manufacturing the same
Patent number
8,227,871
Issue date
Jul 24, 2012
Dongbu Hitek Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lateral DMOS device and method for fabricating the same
Patent number
8,089,124
Issue date
Jan 3, 2012
Dongbu Hitek Co., Ltd.
Choul-Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
LDMOS device and method for manufacturing the same
Patent number
8,063,446
Issue date
Nov 22, 2011
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and method for fabricating the same
Patent number
7,944,002
Issue date
May 17, 2011
Dongbu Hitek Co., Ltd.
Choul-Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Power semiconductor device and method for manufacturing the same
Patent number
7,923,777
Issue date
Apr 12, 2011
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing high-voltage semiconductor device and low-v...
Patent number
7,910,466
Issue date
Mar 22, 2011
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing semiconductor device
Patent number
7,687,363
Issue date
Mar 30, 2010
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing semiconductor device
Patent number
7,655,526
Issue date
Feb 2, 2010
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Power semiconductor device and method for manufacturing the same
Patent number
7,601,600
Issue date
Oct 13, 2009
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
LDMOS device and method for manufacturing the same
Patent number
7,582,533
Issue date
Sep 1, 2009
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for fabricating semiconductor device
Patent number
7,563,667
Issue date
Jul 21, 2009
Dongbu Hitek Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SUPER JUNCTION SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE...
Publication number
20200279912
Publication date
Sep 3, 2020
DB HITEK CO., LTD.
Tae Young Joung
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME
Publication number
20190229213
Publication date
Jul 25, 2019
DB HITEK CO., LTD.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HIGH VOLTAGE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME
Publication number
20160087039
Publication date
Mar 24, 2016
DONGBU HITEK CO., LTD.
Choul Joo KO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DRAIN EXTENDED MOS TRANSISTOR AND METHOD FOR FABRICATING THE SAME
Publication number
20130168766
Publication date
Jul 4, 2013
DONGBU HITEK CO., LTD.
Hee Bae LEE
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LATERAL DOUBLE DIFFUSED METAL OXIDE SEMICONDUCTOR DEVICE AND METHOD...
Publication number
20130093016
Publication date
Apr 18, 2013
DONGBU HITEK CO., LTD.
Choul Joo KO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LATERAL DOUBLE DIFFUSED METAL OXIDE SEMICONDUCTOR DEVICE AND METHOD...
Publication number
20130093017
Publication date
Apr 18, 2013
DONGBU HITEK CO., LTD.
Choul Joo KO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20130082327
Publication date
Apr 4, 2013
Cheol Ho CHO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LATERAL DOUBLE DIFFUSED METAL OXIDE SEMICONDUCTOR DEVICE
Publication number
20120187484
Publication date
Jul 26, 2012
Cheol-Ho CHO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LDMOS SEMICONDUCTOR DEVICE
Publication number
20120126322
Publication date
May 24, 2012
CHOUL JOO KO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Power Semiconductor Device and Method for Manufacturing the Same
Publication number
20100314675
Publication date
Dec 16, 2010
Choul Joo KO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Lateral Double Diffused Metal Oxide Semiconductor Device
Publication number
20100163990
Publication date
Jul 1, 2010
CHOUL JOO KO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor Device and Method for Manufacturing the Same
Publication number
20100140703
Publication date
Jun 10, 2010
CHOUL JOO KO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LDMOS Device and Method for Manufacturing the Same
Publication number
20090273032
Publication date
Nov 5, 2009
CHOUL JOO KO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME
Publication number
20090166763
Publication date
Jul 2, 2009
Choul-Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LATERAL DMOS DEVICE AND METHOD FOR FABRICATING THE SAME
Publication number
20090001461
Publication date
Jan 1, 2009
Choul-Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for fabricating semiconductor device
Publication number
20080176370
Publication date
Jul 24, 2008
Dongbu HiTek Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for manufacturing semiconductor device
Publication number
20070161249
Publication date
Jul 12, 2007
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
High-voltage semiconductor device and method of manufacturing the same
Publication number
20070155107
Publication date
Jul 5, 2007
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
High voltage semiconductor device and method of manufacturing the same
Publication number
20070145478
Publication date
Jun 28, 2007
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for manufacturing semiconductor device
Publication number
20070148844
Publication date
Jun 28, 2007
Dongbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Power semiconductor device and method for manufacturing the same
Publication number
20070096205
Publication date
May 3, 2007
Dougbu Electronics Co., Ltd.
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LDMOS device and method for manufacturing the same
Publication number
20070069308
Publication date
Mar 29, 2007
Choul Joo Ko
H01 - BASIC ELECTRIC ELEMENTS