Inventor
DANG HIEN
US24 patents
⚠️ This page may combine multiple inventors who share the name “DANG HIEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
17 patentsUS5608586AMar 4, 1997
Robust servo for disk-shift compensation in rotating storage system
IBM68 citations96
US7119511B2Oct 10, 2006
Servo system for a two-dimensional micro-electromechanical system (MEMS)-based scanner and method therefor
IBM14 citations93
US6097565AAug 1, 2000
Repeatable runout free servo architecture in direct access storage device
IBM60 citations93
US6574065B1Jun 3, 2003
Method and apparatus for adaptive resonance mode cancellation servo in a rotating storage system
IBM39 citations92
US6487028B1Nov 26, 2002
Servo system for disk-flutter in rotating storage systems
IBM48 citations90
US7741834B2Jun 22, 2010
Method to monitor substrate viability by a sensor mounted to a substrate
IBM23 citations89
US6377418B1Apr 23, 2002
Digital filter, servo control unit, and disk drive
IBM16 citations84
US6339512B1Jan 15, 2002
Disk-flutter servo control in rotating storage system with optimum disk thickness
IBM18 citations81
US7904185B2Mar 8, 2011
System and method for sensor replication for ensemble averaging in micro-electromechanical system (MEMS)
IBM3 citations63
US7426416B2Sep 16, 2008
System and method for sensor replication for ensemble averaging in micro-electromechanical systems (MEMS)
IBM3 citations63
US7394218B2Jul 1, 2008
Servo system for a two-dimensional micro-electromechanical system (MEMS)-based scanner and method therefor
IBM2 citations63
US7321217B2Jan 22, 2008
Servo system for a two-dimensional micro-electromechanical system (MEMS)-based scanner and method therefor
IBM3 citations63
US11245075B2Feb 8, 2022
Optimum warp in organic substrates
IBM0 citations60
US7329948B2Feb 12, 2008
Microelectronic devices and methods
IBM2 citations60
US11817359B2Nov 14, 2023
Warp mitigation using pattern-matched metal layers in organic substrates
IBM0 citations52
US7583044B2Sep 1, 2009
Servo system for a two-dimensional micro-electromechanical system (MEMS)-based scanner and method therefor
IBM0 citations52
US7820488B2Oct 26, 2010
Microelectronic devices and methods
IBM1 citations49
HITACHI GLOBAL STORAGE TECH
7 patentsUS6937432B2Aug 30, 2005
Mounting system for disk drive having a rotary actuator
HITACHI GLOBAL STORAGE TECH58 citations96
US6898046B2May 24, 2005
Method and system for rotational velocity-based algorithm for vibration compensation in disk drives
HITACHI GLOBAL STORAGE TECH23 citations92
US6963463B2Nov 8, 2005
Rotational vibration velocity-based sensor for disk drives
HITACHI GLOBAL STORAGE TECH23 citations91
US7724457B2May 25, 2010
Method and system for time-shift based rotational vibration sensing in disk drives
HITACHI GLOBAL STORAGE TECH8 citations84
US6947243B2Sep 20, 2005
Method and system for time-shift based rotational vibration sensing in disk drives
HITACHI GLOBAL STORAGE TECH9 citations74
US6683745B1Jan 27, 2004
Rotationally free mount system for disk drive having a rotary actuator
HITACHI GLOBAL STORAGE TECH10 citations74
US6707207B1Mar 16, 2004
High bandwidth track following actuator for hard disk drives
HITACHI GLOBAL STORAGE TECH9 citations72