Inventor
TAKAHASHI KEISHI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI KEISHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
9 patentsUS6163440ADec 19, 2000
Inertial latch mechanism for actuator of disk drive device
IBM50 citations92
US6137658AOct 24, 2000
Apparatus for guiding and locking a rotary actuator
IBM22 citations92
US5760997AJun 2, 1998
Flexible cable structure for magnetic disk drives
IBM31 citations92
US6532137B2Mar 11, 2003
Head assembly, disk drive apparatus, hard disk drive and method for manufacturing disk drive apparatus
IBM15 citations84
US6362936B2Mar 26, 2002
Suspension assembly with integral projections having a coating of elastic material
IBM14 citations83
US5896242AApr 20, 1999
Spindle motor with stress alleviating groove provided in hub cylindrical protrusion portion
IBM13 citations74
US5671104ASep 23, 1997
System and method for locking a disk actuator in vertical and horizontal directions
IBM11 citations74
US6593855B2Jul 15, 2003
Shock measurement apparatus and shock measurement method
IBM8 citations71
US4691258ASep 1, 1987
Temperature compensating mechanism for positioning of a magnetic head of a magnetic disk drive
IBM9 citations68
HITACHI GLOBAL STORAGE TECH
7 patentsUS6639758B2Oct 28, 2003
Disk drive apparatus including a load/unload ramp with different angles for standard and depopulated versions
HITACHI GLOBAL STORAGE TECH13 citations84
US6643087B1Nov 4, 2003
Disk drive with improved retract circuit and method
HITACHI GLOBAL STORAGE TECH14 citations81
US7542223B2Jun 2, 2009
Magnetic disk drive using load/unload area for data storage
HITACHI GLOBAL STORAGE TECH7 citations73
US7457065B2Nov 25, 2008
Systems and methods for hard disk drive optimization and manufacturing
HITACHI GLOBAL STORAGE TECH2 citations63
US7426088B2Sep 16, 2008
Magnetic disk drive with function assignment and manufacturing method therefor
HITACHI GLOBAL STORAGE TECH2 citations63
US6900956B2May 31, 2005
Disk device and data-erasing method
HITACHI GLOBAL STORAGE TECH6 citations63
US7620740B2Nov 17, 2009
Storage devices and method of transferring file between the devices
HITACHI GLOBAL STORAGE TECH5 citations62