Inventor

OH SANGMUN

US16 patents

⚠️ This page may combine multiple inventors who share the name “OH SANGMUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HGST Netherlands BV

6 patents

US9337415B1May 10, 2016

Perpendicular spin transfer torque (STT) memory cell with double MgO interface and CoFeB layer for enhancement of perpendicular magnetic anisotropy

HGST Netherlands BV66 citations98

US9177575B1Nov 3, 2015

Tunneling magnetoresistive (TMR) read head with reduced gap thickness

HGST Netherlands BV37 citations94

US9177573B1Nov 3, 2015

Tunneling magnetoresistive (TMR) device with magnesium oxide tunneling barrier layer and free layer having insertion layer

HGST Netherlands BV17 citations84

US8958180B1Feb 17, 2015

Capping materials for magnetic read head sensor

HGST Netherlands BV10 citations84

US8619394B1Dec 31, 2013

Magnetic tunnel junction with barrier cooling for magnetic read head

HGST Netherlands BV9 citations84

US9940955B2Apr 10, 2018

Tunnel magnetoresistance magnetic sensor with scissor sensor and multi-seed layer configuration

HGST Netherlands BV0 citations50

WESTERN DIGITAL TECH INC

5 patents

US10867625B1Dec 15, 2020

Spin transfer torque (STT) device with template layer for Heusler alloy magnetic layers

WESTERN DIGITAL TECH INC16 citations85

US10997993B1May 4, 2021

Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head

WESTERN DIGITAL TECH INC5 citations84

US10566015B2Feb 18, 2020

Spin transfer torque (STT) device with template layer for heusler alloy magnetic layers

WESTERN DIGITAL TECH INC8 citations81

US10460752B2Oct 29, 2019

Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head

WESTERN DIGITAL TECH INC5 citations73

US11646052B2May 9, 2023

Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head

WESTERN DIGITAL TECH INC0 citations62

PARK CHANDO

2 patents

US8537502B1Sep 17, 2013

Method and system for providing a magnetic transducer having improved shield-to-shield spacing

PARK CHANDO150 citations98

US8755152B1Jun 17, 2014

Method and system for providing an improved sensor stack for a recording head

PARK CHANDO8 citations83

WESTERN DIGITAL FREMONT LLC

1 patent

US9214168B1Dec 15, 2015

Method and system for providing a magnetic transducer having improved shield-to-shield spacing

WESTERN DIGITAL FREMONT LLC4 citations73

GAO ZHENG

1 patent

US8427791B2Apr 23, 2013

Magnetic tunnel junction having a magnetic insertion layer and methods of producing the same

GAO ZHENG6 citations73

HEADWAY TECH INC

1 patent

US12266384B2Apr 1, 2025

Tunneling magnetoresistance device with magnetically soft high moment free layer

HEADWAY TECH INC0 citations62