Inventor
Quang Le
Inventor
San Jose, CA, US
Overview
Patents· 109 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer47%
Y10TTechnical subjects covered by former us classification22%
B82YSpecific uses or applications of nanostructures5%
G01RMeasuring electric variables5%
H01FMagnets5%
H10NElectric solid-state devices not otherwise provided for4%
H01LSemiconductor devices3%
G11CStatic stores2%
H10BElectronic memory devices2%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h101%
PatentTitleYear
11,049,512Areal density capability improvement with a main pole skin202111,049,513Magnetic recording head with non-magnetic conductive structure surrounding a main pole and contacting a spin torque oscillator202110,878,841Dual writer for advanced magnetic recording202010,872,627Reversed mode spin torque oscillator with shaped field generation layer202010,872,625Helical coils design and process for dual writer magnetic recording202010,862,022Spin-transfer torque MRAM with magnetically coupled assist layers and methods of operating the same202010,839,831Dual writer designs with SOT and STT assisted recording202010,839,845Magnetic sensors with effectively shaped side shields202010,839,828Magnetic write head with current guiding layer202010,811,596Spin transfer torque MRAM with a spin torque oscillator stack and methods of making the same202010,797,227Spin-transfer torque MRAM with a negative magnetic anisotropy assist layer and methods of operating the same202010,762,918MAMR write head with thermal dissipation conductive guide202010,762,917Reversed mode spin torque oscillator with shaped field generation layer202010,734,014Areal density capability improvement with a main pole skin202010,726,892Metallic magnetic memory devices for cryogenic operation and methods of operating the same202010,720,570Magnetic sensor using spin hall effect202010,636,439MAMR write head with thermal dissipation conductive guide202010,410,658Magnetic recording write head with spin-torque oscillator (STO) and extended seed layer201910,381,032Magnetic sensors with effectively shaped side shields201910,311,901Anisotropy field induced self pinned recessed antiferromagnetic reader201910,157,632Areal density capability improvement with spin-orbit torque based structures surrounding main pole tip20189,947,347Magnetic sensor using inverse spin hall effect20189,940,955Tunnel magnetoresistance magnetic sensor with scissor sensor and multi-seed layer configuration20189,679,591'Magnetic scissor sensor with closed-loop side shield'20179,472,215'T-shape scissor sensor and method of making the same'20169,406,320'Scissor unidirectional biasing with hard bias stabilized soft bias'20169,280,992'Hybrid longitudinal-field bias side shield for a scissor magnetic sensor and methods of making the same'20169,230,576'Scissor reader with side shield decoupled from bias material'20169,202,482'Magnetic sensor having an extended pinned layer with stitched antiferromagnetic pinning layer'20159,153,258'Scissor magnetic read sensor with novel multi-layer bias structure for uniform free layer biasing'20159,099,122'Scissor sensor with back edge bias structure and novel dielectric layer'20159,076,468'Scissor magnetic read sensor with shape enhanced soft magnetic side shield for improved stability'20159,053,721'Magnetic read sensor with independently extended pinned layer and seed layer'20159,047,893'Magnetic sensor having narrow trackwidth and small read gap'20159,042,062'Magnetic sensor with recessed AFM shape enhanced pinning and soft magnetic bias'20158,941,954'Magnetic sensor with extended pinned layer and partial wrap around shield'20158,907,666'Magnetic bias structure for magnetoresistive sensor having a scissor structure'20148,842,395'Magnetic sensor having an extended pinned layer and shape enhanced bias structure'20148,836,059'Shape enhanced pin read head magnetic transducer with stripe height defined first and method of making same'20148,797,694'Magnetic sensor having hard bias structure for optimized hard bias field and hard bias coercivity'20148,778,198'Method for manufacturing a magnetoresistive sensor using simultaneously formed hard bias and electrical lapping guide'20148,749,926'Scissor magnetic read head with wrap-around magnetic shield'20148,634,162'Perpendicular write head having a stepped flare structure and method of manufacture thereof'20148,615,868'Method for manufacturing a magnetic sensor using two step ion milling'20138,553,371'TMR reader without DLC capping structure'20138,500,916'Method for aligning wafers within wafer processing equipment'20138,333,898'Method for manufacturing a magnetic tape head using a TMR sensor'20128,296,930'Method for manufacturing a magnetoresistive sensor having a flat shield'20128,259,413'Write head with self-align layer and a method for making the same'20128,252,516'Manufacturing a narrow track read head'20128,137,570'Additive write pole process for wrap around shield'20128,136,227'Method for making a magnetic head having a non-GMR shunt'20128,099,855'Methods for fabricating perpendicular recording heads with controlled separation regions'20128,048,281'Method for producing tight pitched coil with reduced processing steps'20118,031,434'Hybrid, self aligned magnetic write head with a partially plated pole and method of producing same'20118,021,535'Methods for plating write pole shield structures with ultra-thin metal gap seed layers'20118,011,084'Method for fabricating narrow magnetic read width TMR/CPP sensors'20117,978,430'Apparatus for providing a reverse air bearing surface head with trailing shield design for perpendicular recording'20117,969,684'Write head design and method for reducing adjacent track interference at very narrow track widths'20117,950,137'Method for manufacturing a magnetic write head'20117,748,104'Structure and method for reduced corrosion of auxiliary poles during the fabrication of perpendicular write heads'20107,742,258'Magnetic transducer with milling mask'20107,715,147'Magnetic write head having a shield that extends below the leading edge of the write pole'20107,649,712'Self aligned wrap around shield for perpendicular magnetic recording'20107,639,450'Flux shunt structure for reducing return pole corner fields in a perpendicular magnetic recording head'20097,587,810'High milling resistance write pole fabrication method for perpendicular recording'20097,574,791'Method to fabricate side shields for a magnetic sensor'20097,572,499'Contact magnetic transfer template'20097,565,732'Method of manufacturing a write pole'20097,563,381'High milling resistance write pole fabrication method for perpendicular recording'20097,558,019'Perpendicular magnetic recording write head with flux-conductor contacting write pole'20097,551,396'Perpendicular magnetic write head having a studded trailing shield compatible with read/write offset'20097,515,381'Method for fabricating a side shield for a flux guide layer for perpendicular magnetic recording'20097,506,428'Ion mill process with sacrificial mask layer to fabricate pole tip for perpendicular recording'20097,467,461'Additive gap process to define trailing and side shield gap for a perpendicular write head'20087,464,458'Method for manufacturing a self-aligned, notched trailing shield for perpendicular recording'20087,464,457'Method for forming a write head having an air bearing surface (ABS)'20087,446,980'Method for manufacturing a stitched “floating†trailing shield for a perpendicular recording head'20087,440,230'Perpendicular recording head with floating-trailing shield extending around first and second sides of main pole piece'20087,398,592'Manufacturable CMP assisted liftoff process to fabricate write pole for perpendicular recording heads'20087,388,732'Perpendicular recording magnetic head with a write shield megnetically coupled to a first pole piece'20087,362,543'Magnetoresistive/inductive write head assembly formed with seed layers having a uniform thickness'20087,313,858'Method for manufacturing a magnetic head coil structure and/or pole tip structure'20087,304,821'Magnetic head coil structure and method for manufacturing the same'20077,296,338'Method and apparatus for providing a reverse air bearing surface head with trailing shield design for perpendicular recording'20077,272,883'Methods of forming an electrical connection in a magnetic head using a damascene process'20077,265,941'Self-aligned, notched trailing shield for perpendicular recording'20077,251,878'Method and apparatus for defining leading edge taper of a write pole tip'20077,228,619'Method of manufacturing a magnetic head with common seed layer for coil and pedestal'20077,212,379'Perpendicular magnetic recording head with flare and taper configurations'20077,196,871'Head for perpendicular recording with a floating trailing shield'20077,194,798'Method for use in making a write coil of magnetic head'20077,186,348'Method for fabricating a pole tip in a magnetic transducer'20077,159,302'Method for manufacturing a perpendicular write head'20077,160,477'Method for making a contact magnetic transfer template'20077,120,988'Method for forming a write head having air bearing surface (ABS)'20067,079,355'Magnetic transducer with a write head having a multi-layer coil'20067,075,750'Apparatus for patterning a self-aligned coil using a damascene process'20067,070,698'Methods of fabricating magnetic write heads with side and trailing shield structures'20067,037,847'Methods for fabricating read sensor for magnetic heads with reduced read track width'20067,031,121'Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece'20067,024,756'Method of making a perpendicular recording magnetic head pole tip with an etchable adhesion CMP stop layer'20067,022,248'Method for patterning a self-aligned coil using a damascene process'20067,014,530'Slider fabrication system for sliders with integrated electrical lapping guides'20067,009,812'Magnetic transducer for perpendicular magnetic recording with single pole write head with trailing shield'20067,002,775'Head for perpendicular magnetic recording with a shield structure connected to the return pole piece'20066,948,231'Method of depositing material into high aspect ratio features'20056,901,653'Process for manufacturing a magnetic head coil structure'20056,804,879'Method of fabricating a magnetic transducer with a write head having a multi-layer coil'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2010Patents assigned to HITACHI GLOBAL STORAGE TECH (47)· patent assignee history
2004–2021Based in San Jose, CA, US· patent location history
2011–2012Patents assigned to HITACHI GLOBAL STORAGE TECH NL (13)· patent assignee history
2012–2018Patents assigned to HGST Netherlands BV (25)· patent assignee history
2012–2014Patents assigned to LE QUANG (14)· patent assignee history
2018–2021Patents assigned to WESTERN DIGITAL TECH INC (19)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI GLOBAL STORAGE TECH | 47 | 2004–2010 |
| HGST Netherlands BV | 25 | 2012–2018 |
| WESTERN DIGITAL TECH INC | 19 | 2018–2021 |
| LE QUANGself | 14 | 2012–2014 |
| HITACHI GLOBAL STORAGE TECH NL | 13 | 2011–2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Jose, California, US | 109 | 2004–2021 |