Inventor
HAAPALA KENNETH
US11 patents
Patents
11 patentsUS9142246B1Sep 22, 2015
Apparatus and methods to reduce hard disk drive manufacturing test time
SEAGATE TECHNOLOGY LLC63 citations95
US10431246B2Oct 1, 2019
Dual actuator storage device utilizing multiple disk zones
SEAGATE TECHNOLOGY LLC16 citations94
US9361919B1Jun 7, 2016
Disk drive with parallel head actuation
SEAGATE TECHNOLOGY LLC47 citations92
US8638349B1Jan 28, 2014
Head-medium contact detection using introduced heat oscillation
SEAGATE TECHNOLOGY LLC18 citations92
US10629238B1Apr 21, 2020
Managing storage device media data rates
SEAGATE TECHNOLOGY LLC7 citations84
US10964345B1Mar 30, 2021
Parallel servo control in a data storage device
SEAGATE TECHNOLOGY LLC9 citations83
US9311940B1Apr 12, 2016
Multiple head control using common and differential position error signals
SEAGATE TECHNOLOGY LLC9 citations82
US10783910B2Sep 22, 2020
Dual actuator storage device utilizing multiple disk zones
SEAGATE TECHNOLOGY LLC4 citations73
US9502063B1Nov 22, 2016
Apparatus and method for measuring slider fly height relative to bit patterned media
SEAGATE TECHNOLOGY LLC3 citations73
US9495995B1Nov 15, 2016
Adjusting laser power to achieve equivalent track spacing for paired heads that simultaneously write to a heat-assisted recording medium
SEAGATE TECHNOLOGY LLC5 citations73
US9047898B2Jun 2, 2015
Head-medium contact detection using introduced heat oscillation
SEAGATE TECHNOLOGY LLC5 citations72