Inventor
HARA TAKEYORI
JP55 patents
⚠️ This page may combine multiple inventors who share the name “HARA TAKEYORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
43 patentsUS10910013B1Feb 2, 2021
Magnetic disk device and write processing method
TOSHIBA KK17 citations86
US10529365B2Jan 7, 2020
Method for correcting position offset of the heads on two dimensional magnetic recording device
TOSHIBA KK7 citations84
US10360930B1Jul 23, 2019
Disk device and method of manufacturing disk device
TOSHIBA KK11 citations84
US10192570B2Jan 29, 2019
Magnetic disk device and write method
TOSHIBA KK10 citations84
US10008227B1Jun 26, 2018
Magnetic disk apparatus
TOSHIBA KK8 citations84
US9947352B1Apr 17, 2018
Magnetic disk apparatus
TOSHIBA KK10 citations84
US9240198B1Jan 19, 2016
Magnetic disk drive and write control method
TOSHIBA KK11 citations84
US8885284B2Nov 11, 2014
Information write apparatus and information write method
TOSHIBA KK9 citations84
US8896959B1Nov 25, 2014
Magnetic disk apparatus and data recording method
TOSHIBA KK11 citations83
US12183375B1Dec 31, 2024
Magnetic disk device and method of controlling magnetic disk device
TOSHIBA KK2 citations73
US10916266B2Feb 9, 2021
Magnetic disk device capable of setting recording condition using servo pattern
TOSHIBA KK2 citations73
US10872631B1Dec 22, 2020
Magnetic disk device and servo read processing method
TOSHIBA KK4 citations73
US10854238B2Dec 1, 2020
Magnetic disk device and linearity error correction method
TOSHIBA KK2 citations73
US10497385B1Dec 3, 2019
Magnetic disk device and method for suppressing disturbance component having harmonic
TOSHIBA KK2 citations73
US9728215B2Aug 8, 2017
Magnetic disk apparatus and data recording method
TOSHIBA KK4 citations73
US9064526B1Jun 23, 2015
Magnetic disk apparatus and off-track detection method
TOSHIBA KK6 citations73
US9959898B1May 1, 2018
Magnetic disk device, controller, and seeking method
TOSHIBA KK2 citations64
US10198188B2Feb 5, 2019
Disk drive that efficiently handles random mixed-R/W command-streams
TOSHIBA KK1 citations63
US11875829B2Jan 16, 2024
Magnetic disk device and reordering method
TOSHIBA KK0 citations62
US11817136B2Nov 14, 2023
Disk device
TOSHIBA KK0 citations62
US11783855B2Oct 10, 2023
Magnetic disk device and method for switching bias voltage and drive voltage of microactuator
TOSHIBA KK0 citations62
US11756580B2Sep 12, 2023
Magnetic disk device, control method, and non-transitory computer-readable storage medium
TOSHIBA KK0 citations62
US11508404B1Nov 22, 2022
Magnetic disk device and method of compensating for harmonic corresponding to harmonic disturbance
TOSHIBA KK0 citations62
US10872630B2Dec 22, 2020
Two-dimensional magnetic recording device capable of positioning the head based on reading of first and second readers
TOSHIBA KK1 citations62
US8902540B2Dec 2, 2014
Disk storage apparatus and method for servo controlling
TOSHIBA KK2 citations62
US10964344B2Mar 30, 2021
Magnetic disk device having two regions of different thicknesses
TOSHIBA KK0 citations59
US12555597B2Feb 17, 2026
Magnetic disk device
TOSHIBA KK0 citations52
US12518792B2Jan 6, 2026
Magnetic disk device and method of controlling the same
TOSHIBA KK0 citations52
US12499906B1Dec 16, 2025
Magnetic disk drive and control method of the same
TOSHIBA KK0 citations52
US12494225B1Dec 9, 2025
Magnetic disk device and method of controlling the same
TOSHIBA KK0 citations52
US12347471B2Jul 1, 2025
Magnetic disk device and method
TOSHIBA KK0 citations52
US12277958B2Apr 15, 2025
Magnetic disk device
TOSHIBA KK0 citations52
US12260888B1Mar 25, 2025
Magnetic disk apparatus and method
TOSHIBA KK0 citations52
US12217769B1Feb 4, 2025
Magnetic disk device and method
TOSHIBA KK0 citations52
US12211530B1Jan 28, 2025
Magnetic disk apparatus and method
TOSHIBA KK0 citations52
US12100423B2Sep 24, 2024
Magnetic disk device and head control method
TOSHIBA KK0 citations52
US11694720B1Jul 4, 2023
Magnetic disk device that corrects position of head by demodulation
TOSHIBA KK0 citations52
US11557312B2Jan 17, 2023
Magnetic disk device and head change processing method
TOSHIBA KK0 citations52
US11011199B2May 18, 2021
Magnetic disk device and control method of servo write
TOSHIBA KK0 citations52
US10678442B2Jun 9, 2020
Disk drive that efficiently handles random mixed-R/W command-streams
TOSHIBA KK0 citations52
US10163458B2Dec 25, 2018
Magnetic disk device and write method
TOSHIBA KK1 citations52
US9824707B2Nov 21, 2017
Disk apparatus, driver circuit, and control method
TOSHIBA KK1 citations52
US8982505B2Mar 17, 2015
Method for generating address data and disk storage apparatus
TOSHIBA KK1 citations52
FUJITSU LTD
7 patentsUS6546296B1Apr 8, 2003
Calibration method for two-stage actuator control system
FUJITSU LTD21 citations92
US6989956B2Jan 24, 2006
Head position control method, disk device, and servo track write method
FUJITSU LTD10 citations74
US7136245B2Nov 14, 2006
Disk device
FUJITSU LTD8 citations71
US6943970B2Sep 13, 2005
Position demodulating method and circuit of disk apparatus
FUJITSU LTD2 citations63
US7515377B2Apr 7, 2009
Storage apparatus and control method for detecting vibration produced during seeking
FUJITSU LTD4 citations62
US5805373ASep 8, 1998
Head position error compensation in disk drives
FUJITSU LTD4 citations62
US7164261B2Jan 16, 2007
Resonance-frequency measuring method determining a resonance frequency by counting the number of off-track occurrences
FUJITSU LTD4 citations61
Showing the top 50 of 55 patents by PatentIndex Score.