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Da Woon Chung
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Suwon-si, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for servo pattern writing
Patent number
8,792,199
Issue date
Jul 29, 2014
Seagate Technology LLC
Da Woon Chung
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for controlling a motor
Patent number
8,786,974
Issue date
Jul 22, 2014
Seagate Technology International
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of controlling flying height of magnetic head and disk drive...
Patent number
8,154,819
Issue date
Apr 10, 2012
Seagate Technology International
Ho-chul Shin
G11 - INFORMATION STORAGE
Information
Patent Grant
Methods of forming and reading servo track and data storage apparatus
Patent number
8,035,908
Issue date
Oct 11, 2011
Samsung Electronics Co., Ltd.
Sang-Hyun Park
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method of compensating for track zero position in reference servo t...
Patent number
7,663,832
Issue date
Feb 16, 2010
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Grant
HDD track following control apparatus and method
Patent number
7,548,393
Issue date
Jun 16, 2009
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Grant
HDD write control method and apparatus
Patent number
7,548,390
Issue date
Jun 16, 2009
Samsung Electronics Co., Ltd.
Jung-ho Lee
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of controlling startup current of motor and disk drive using...
Patent number
7,531,983
Issue date
May 12, 2009
Samsung Electronics Co., Ltd.
Jun Jeong
G11 - INFORMATION STORAGE
Information
Patent Grant
Self servo writing method, hard disk drive using the same, and reco...
Patent number
7,471,480
Issue date
Dec 30, 2008
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Grant
Seek control method of hard disk drive, recording medium storing me...
Patent number
7,430,093
Issue date
Sep 30, 2008
Samsung Electronics Co., Ltd.
Jung-ho Lee
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus of acceleration-based track seeking servo cont...
Patent number
7,359,140
Issue date
Apr 15, 2008
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of writing a reference servo signal of hard disk drive and a...
Patent number
7,333,286
Issue date
Feb 19, 2008
Samsung Electronics Co., Ltd.
Kwang-jo Jung
G11 - INFORMATION STORAGE
Information
Patent Grant
Settling servo control method and apparatus for hard disc drive and...
Patent number
7,203,028
Issue date
Apr 10, 2007
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus and method of removing resonance frequency in system
Patent number
7,193,799
Issue date
Mar 20, 2007
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Grant
Method, medium, and apparatus for offline self servo writing and di...
Patent number
7,057,842
Issue date
Jun 6, 2006
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus and method for detecting and compensating for resonance f...
Patent number
7,031,094
Issue date
Apr 18, 2006
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR SERVO PATTERN WRITING
Publication number
20130163115
Publication date
Jun 27, 2013
Da Woon Chung
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR CONTROLLING A MOTOR IN A DISK DRIVE
Publication number
20110235206
Publication date
Sep 29, 2011
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD OF CONTROLLING FLYING HEIGHT OF MAGNETIC HEAD AND DISK DRIVE...
Publication number
20100284107
Publication date
Nov 11, 2010
Samsung Electronics Co., Ltd.
Ho-chul Shin
G11 - INFORMATION STORAGE
Information
Patent Application
METHODS OF FORMING AND READING SERVO TRACK AND DATA STORAGE APPARATUS
Publication number
20100033864
Publication date
Feb 11, 2010
Samsung Electronics Co., Ltd.
Sang-Hyun PARK
G11 - INFORMATION STORAGE
Information
Patent Application
DATA STORAGE DEVICE HAVING DIFFERENT CONTROL INFORMATION IN DIFFERE...
Publication number
20090284859
Publication date
Nov 19, 2009
Samsung Electronics Co., Ltd.
Da-woon CHUNG
G11 - INFORMATION STORAGE
Information
Patent Application
HDD TRACK FOLLOWING CONTROL APPARATUS AND METHOD
Publication number
20080002285
Publication date
Jan 3, 2008
Samsung Electronics Co., Ltd.
Da-woon CHUNG
G11 - INFORMATION STORAGE
Information
Patent Application
HDD WRITE CONTROL METHOD AND APPARATUS
Publication number
20070297086
Publication date
Dec 27, 2007
Samsung Electronics Co., Ltd.
Jung-ho LEE
G11 - INFORMATION STORAGE
Information
Patent Application
Method of writing a reference servo signal of hard disk drive and a...
Publication number
20070081268
Publication date
Apr 12, 2007
Samsung Electronics Co., Ltd.
Kwang-jo Jung
G11 - INFORMATION STORAGE
Information
Patent Application
Seek control method of hard disk drive, recording medium storing me...
Publication number
20070008646
Publication date
Jan 11, 2007
Samsung Electronics Co., Ltd.
Jung-Ho Lee
G11 - INFORMATION STORAGE
Information
Patent Application
Method of compensating for track zero position in reference servo t...
Publication number
20060114597
Publication date
Jun 1, 2006
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Application
Self servo writing method, hard disk drive using the same, and reco...
Publication number
20060109584
Publication date
May 25, 2006
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Application
Method of controlling startup current of motor and disk drive using...
Publication number
20060097679
Publication date
May 11, 2006
Samsung Electronics Co., Ltd.
Jun Jeong
G11 - INFORMATION STORAGE
Information
Patent Application
Apparatus and method for detecting and compensating for resonance f...
Publication number
20050111125
Publication date
May 26, 2005
Samsung Electronics Co., Ltd.
Da-woon Chung
G01 - MEASURING TESTING
Information
Patent Application
Method, medium, and apparatus for offline self servo writing and di...
Publication number
20050099720
Publication date
May 12, 2005
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus of acceleration-based track seeking servo cont...
Publication number
20040233569
Publication date
Nov 25, 2004
Samsung Electronics Co., Ltd.
Da-woon Chung
G11 - INFORMATION STORAGE
Information
Patent Application
Settling servo control method and apparatus for hard disc drive and...
Publication number
20040114270
Publication date
Jun 17, 2004
Samsung Electronics Co., Ltd.
Da-Woon Chung
G11 - INFORMATION STORAGE
Information
Patent Application
Apparatus and method of removing resonance frequency in system
Publication number
20020176192
Publication date
Nov 28, 2002
Samsung Electronics Co., Ltd.
Da-Woon Chung
G11 - INFORMATION STORAGE