Inventor
YAMADA KENICHIRO
JP105 patents
⚠️ This page may combine multiple inventors who share the name “YAMADA KENICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
20 patentsUS7957098B2Jun 7, 2011
Magnetic recording head and magnetic recording apparatus
TOSHIBA KK128 citations99
US10236021B2Mar 19, 2019
Magnetic recording apparatus having magnetic flux control part and magnetic recording head having magnetic flux control part
TOSHIBA KK82 citations98
US10186284B2Jan 22, 2019
Magnetic head and magnetic recording and reproducing device
TOSHIBA KK82 citations98
US7791829B2Sep 7, 2010
Apparatus for assisting write operation using high frequency magnetic field in disk drive
TOSHIBA KK65 citations98
US9978404B2May 22, 2018
Magnetic recording head and disk device with the same
TOSHIBA KK7 citations84
US9589581B2Mar 7, 2017
Microwave-assisted magnetic recording head and magnetic recording apparatus including the same
TOSHIBA KK10 citations84
US9349389B2May 24, 2016
Magnetic recording head and magnetic recording and reproducing device
TOSHIBA KK7 citations84
US9330691B1May 3, 2016
Microwave assisted magnetic head
TOSHIBA KK18 citations84
US9275660B1Mar 1, 2016
Magnetic head having first magnetic shield, stack, side shield, antiferromagnetic layer, and second magnetic shield, magnetic head assembly, magnetic recording and reproducing apparatus, and manufacturing method of magnetic head
TOSHIBA KK8 citations84
US9076463B2Jul 7, 2015
Magnetic recording head and disk device with the same
TOSHIBA KK11 citations84
US8995085B2Mar 31, 2015
Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method
TOSHIBA KK4 citations84
US8810954B1Aug 19, 2014
Disk storage apparatus, write control apparatus and write control method
TOSHIBA KK14 citations84
US8614861B1Dec 24, 2013
Magnetic recording head including a high-frequency oscillator and disk drive with the same
TOSHIBA KK11 citations84
US8027118B2Sep 27, 2011
Method and apparatus for controlling head with spin-torque oscillator in a disk drive
TOSHIBA KK11 citations83
US9111552B1Aug 18, 2015
High-frequency oscillation device, magnetic recording head including the same, and disk device
TOSHIBA KK7 citations80
US11710501B2Jul 25, 2023
Magnetic head and magnetic recording device
TOSHIBA KK2 citations73
US10809321B2Oct 20, 2020
Magnetic sensor and testing device
TOSHIBA KK2 citations73
US9824703B2Nov 21, 2017
Magnetic recording and reproducing device having magnetic head with first and second reproducing element portions and magnetic reproducing method
TOSHIBA KK6 citations73
US9653103B2May 16, 2017
Magnetic head including spin valve element with first to third terminals in which first current flows between the second terminal and the third terminal, and second current flows to the first terminal and is lower than the first current, magnetic recording and reproducing apparatus, and method of manufacturing magnetic head
TOSHIBA KK4 citations73
US9583134B2Feb 28, 2017
Magnetic recording and reproducing device
TOSHIBA KK5 citations73
YAMADA KENICHIRO
9 patentsUS8139322B2Mar 20, 2012
Magnetic recording head with protruding spin torque oscillator
YAMADA KENICHIRO45 citations94
US8767346B2Jul 1, 2014
Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method
YAMADA KENICHIRO18 citations93
US8547662B2Oct 1, 2013
Magnetic recording head and magnetic recording apparatus
YAMADA KENICHIRO16 citations92
US8472140B2Jun 25, 2013
Spin oscillator or magnetic recorder including multiple injection layers in the magnetic recording head
YAMADA KENICHIRO24 citations92
US8400734B2Mar 19, 2013
Magnetic recording head and magnetic recording apparatus
YAMADA KENICHIRO30 citations92
US8295009B2Oct 23, 2012
Magnetic recording head and magnetic recording apparatus
YAMADA KENICHIRO18 citations92
US8238060B2Aug 7, 2012
Magnetic recording head and magnetic recording apparatus
YAMADA KENICHIRO24 citations92
US8687321B2Apr 1, 2014
Magnetic head assembly
YAMADA KENICHIRO13 citations84
US8553359B2Oct 8, 2013
Magnetic recording head and magnetic recording/reproducing apparatus using the same
YAMADA KENICHIRO7 citations84
FUJITSU LTD
5 patentsUS6829122B2Dec 7, 2004
Magnetic head of a magnetoresistance type having an underlying layer having a laminated structure of a tungsten-group metal layer formed on a tantalum-group metal layer
FUJITSU LTD27 citations92
US6094325AJul 25, 2000
Spin valve head reducing barkhausen noise
FUJITSU LTD20 citations92
US6046890AApr 4, 2000
Method for protecting a magnetoresistive head from damage due to electrostatic discharge
FUJITSU LTD33 citations92
US6876524B2Apr 5, 2005
Magnetoresistive transducer having stronger longitudinal bias field
FUJITSU LTD8 citations74
US6123780ASep 26, 2000
Spin valve magnetoresistive head and manufacturing method therefor
FUJITSU LTD11 citations74
IWASAKI HITOSHI
3 patentsUS8320079B2Nov 27, 2012
Magnetic head assembly and magnetic recording/reproducing apparatus
IWASAKI HITOSHI72 citations97
US8564904B2Oct 22, 2013
Magnetic head with stacked magnetic layers, magnetic head assembly, and magnetic recording/reproducing apparatus
IWASAKI HITOSHI16 citations83
US8467148B2Jun 18, 2013
Spin torque oscillator, magnetic recording head, magnetic head assembly and magnetic recording apparatus
IWASAKI HITOSHI16 citations83
TAKAGISHI MASAYUKI
3 patentsUS8164854B2Apr 24, 2012
Magnetic recording head with spin oscillation device and magnetic recording apparatus including the magnetic recording head
TAKAGISHI MASAYUKI45 citations93
US8446691B2May 21, 2013
Magnetic recording device
TAKAGISHI MASAYUKI16 citations83
US8120875B2Feb 21, 2012
Magnetic recording apparatus utilizing a spin torque oscillator which interacts with an antenna layer in the magnetic recording medium
TAKAGISHI MASAYUKI11 citations83
ZHANG KUNLIANG
2 patentsFUNAYAMA TOMOMI
2 patentsSHIMIZU MARIKO
2 patentsTAKASHITA MASAHIRO
1 patentKOUI KATSUHIKO
1 patentAKIYAMA JUNICHI
1 patentHITACHI HIGH TECH CORP
1 patentShowing the top 50 of 105 patents by PatentIndex Score.