Inventor
WHITE MATTHEW T
US23 patents
⚠️ This page may combine multiple inventors who share the name “WHITE MATTHEW T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI GLOBAL STORAGE TECH
16 patentsUS7106552B2Sep 12, 2006
Method for secondary-actuator failure detection and recovery in a dual-stage actuator disk drive
HITACHI GLOBAL STORAGE TECH27 citations92
US7079339B1Jul 18, 2006
Dual-stage actuator disk drive with method for secondary-actuator failure detection and recovery using a relative-position sensor while track following
HITACHI GLOBAL STORAGE TECH22 citations92
US7075748B2Jul 11, 2006
Disk drive with a dual-stage actuator and failure detection and recovery system for the secondary actuator
HITACHI GLOBAL STORAGE TECH25 citations92
US7072134B1Jul 4, 2006
Dual-stage actuator disk drive with secondary actuator failure detection and recovery using relative-position signal
HITACHI GLOBAL STORAGE TECH21 citations92
US7012777B1Mar 14, 2006
Disk drive with capacitance sensing of disk vibration and feedforward control for removal of read/write head track misregistration
HITACHI GLOBAL STORAGE TECH28 citations92
US6583964B1Jun 24, 2003
Disk drive with mode canceling actuator
HITACHI GLOBAL STORAGE TECH51 citations92
US7177113B1Feb 13, 2007
Magnetic recording disk drive with switchable rotational vibration cancellation
HITACHI GLOBAL STORAGE TECH26 citations91
US7450335B2Nov 11, 2008
Reducing read/write head track misregistration
HITACHI GLOBAL STORAGE TECH12 citations84
US6977793B2Dec 20, 2005
Magnetic recording disk drive with dual-stage actuator and control system with multiple controllers
HITACHI GLOBAL STORAGE TECH13 citations84
US6934117B2Aug 23, 2005
Technique to compensate for resonances and disturbances on primary actuator through use of a secondary actuator
HITACHI GLOBAL STORAGE TECH13 citations84
US7375916B2May 20, 2008
Magnetic recording disk drive with multiple feedforward controllers for rotational vibration cancellation
HITACHI GLOBAL STORAGE TECH16 citations82
US7345841B2Mar 18, 2008
Disk drive using a disturbance sensor for disturbance frequency-identification and suppression
HITACHI GLOBAL STORAGE TECH17 citations82
US7450339B2Nov 11, 2008
Disk drive with support structure for damping plates and disk-vibration capacitive sensors
HITACHI GLOBAL STORAGE TECH6 citations74
US7292407B2Nov 6, 2007
Disk drive with support structure for disk-vibration capacitive sensors
HITACHI GLOBAL STORAGE TECH7 citations74
US7277258B2Oct 2, 2007
Dual-stage actuator disk drive with optimal location of the movable portion of the secondary actuator
HITACHI GLOBAL STORAGE TECH7 citations74
US7499243B2Mar 3, 2009
Disk drive with support structure for air dams and disk-vibration capacitive sensors
HITACHI GLOBAL STORAGE TECH1 citations63
PROGRESSIVE CASUALTY INSURANCE COMPANY
3 patentsUS10148600B1Dec 4, 2018
Intelligent conversational systems
PROGRESSIVE CASUALTY INSURANCE COMPANY15 citations90
US11438283B1Sep 6, 2022
Intelligent conversational systems
PROGRESSIVE CASUALTY INSURANCE COMPANY10 citations83
US10305826B1May 28, 2019
Intelligent conversational systems
PROGRESSIVE CASUALTY INSURANCE COMPANY1 citations70