Inventor
PARK CHEOL-HOON
KR27 patents
⚠️ This page may combine multiple inventors who share the name “PARK CHEOL-HOON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAMSUNG ELECTRONICS CO LTD
17 patentsUS7158335B2Jan 2, 2007
Method for resonance identification in hard disk drives
SAMSUNG ELECTRONICS CO LTD21 citations91
US7203024B2Apr 10, 2007
Method of testing servo burst signals of hard disk drive and recording medium adapted therefor
SAMSUNG ELECTRONICS CO LTD10 citations83
US7715140B2May 11, 2010
Method of determining size of error and write control method for hard disc drive, hard disc drive using the write control method, and media storing computer programs for executing the methods
SAMSUNG ELECTRONICS CO LTD7 citations73
US7248428B2Jul 24, 2007
Method, medium, and apparatus controlling track seek in a recording and/or reproducing apparatus
SAMSUNG ELECTRONICS CO LTD9 citations73
US7952825B2May 31, 2011
Method and apparatus adjusting reference clock frequency and disk drive using same
SAMSUNG ELECTRONICS CO LTD4 citations62
US7619848B2Nov 17, 2009
Method of searching to find a servo pattern corresponding to a servo pattern copy process
SAMSUNG ELECTRONICS CO LTD3 citations62
US7583465B2Sep 1, 2009
Disk drive adaptive resonance compensation method and apparatus
SAMSUNG ELECTRONICS CO LTD5 citations62
US7432673B2Oct 7, 2008
Method, medium, and apparatus controlling current gain change of a spindle motor driver
SAMSUNG ELECTRONICS CO LTD3 citations62
US7369352B2May 6, 2008
Apparatus, medium, and method with seek servo control considering temperature change
SAMSUNG ELECTRONICS CO LTD2 citations62
US7342739B2Mar 11, 2008
Method, medium, and apparatus compensating for torque variations based on temperature
SAMSUNG ELECTRONICS CO LTD4 citations62
US7336438B2Feb 26, 2008
Write control method of hard disk drive, hard disk drive adapting the method and recording medium thereof
SAMSUNG ELECTRONICS CO LTD4 citations62
US7333292B2Feb 19, 2008
Seek servo control method for adapting to supply voltage variation and disk drive using the same
SAMSUNG ELECTRONICS CO LTD2 citations62
US7400466B2Jul 15, 2008
Method and apparatus for driving spindle motor using adaptive feedforward control
SAMSUNG ELECTRONICS CO LTD4 citations61
US7145743B2Dec 5, 2006
Apparatus and method for unlatching a head within a data storage device
SAMSUNG ELECTRONICS CO LTD3 citations61
US7116515B2Oct 3, 2006
Method and apparatus for compensating for torque change in seek servo
SAMSUNG ELECTRONICS CO LTD4 citations61
US7031098B2Apr 18, 2006
Method of measuring compensation value for short track seeking in hard disc drive and method of compensating for bias using the same
SAMSUNG ELECTRONICS CO LTD0 citations52
US7489467B2Feb 10, 2009
Method for measuring track width of hard disk drive
SAMSUNG ELECTRONICS CO LTD0 citations40
KOREA INST MACH & MATERIALS
5 patentsUS10001165B2Jun 19, 2018
Thrust magnetic bearing for bias compensation
KOREA INST MACH & MATERIALS2 citations71
US10973620B2Apr 13, 2021
Biomimetic artificial muscle module, biomimetic artificial muscle assembly having the same, and method of controlling the same
KOREA INST MACH & MATERIALS1 citations58
US12491626B2Dec 9, 2025
Soft actuator having cooler, wearable robot having the same, massage device having the same, and method for controlling the same
KOREA INST MACH & MATERIALS0 citations46
US10632739B2Apr 28, 2020
Roller module with magnetic bearings and permanent magnets
KOREA INST MACH & MATERIALS0 citations41
US10792806B2Oct 6, 2020
Device for driving artificial muscle module and method for driving artificial muscle module
KOREA INST MACH & MATERIALS0 citations39
KOREA MACH & MATERIALS INST
4 patentsUS9273723B2Mar 1, 2016
Composite magnetic bearing having auxiliary bearing coupled thereto
KOREA MACH & MATERIALS INST4 citations70
US9181977B2Nov 10, 2015
Air-foil bearing
KOREA MACH & MATERIALS INST2 citations59
US9157473B2Oct 13, 2015
Thrust bearing and combo bearing
KOREA MACH & MATERIALS INST3 citations59
US8998493B2Apr 7, 2015
Split combo bearing
KOREA MACH & MATERIALS INST2 citations59