Yongchul Ahn

Person

Eagon, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Spintronic devices with self-cooling function
- Patent number 11,925,120
- Issue date Mar 5, 2024
- Western Digital Technologies, Inc.
- Susumu Okamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Spin torque oscillator with multilayer seed for improved performanc...
- Patent number 11,862,205
- Issue date Jan 2, 2024
- Western Digital Technologies, Inc.
- James Mac Freitag
- G11 - INFORMATION STORAGE
Information Patent Grant
BiSb topological insulator with seed layer or interlayer to prevent...
- Patent number 11,489,108
- Issue date Nov 1, 2022
- Western Digital Technologies, Inc.
- Quang Le
- G11 - INFORMATION STORAGE
Information Patent Grant
SOT-based spin torque oscillators for oscillatory neural networks
- Patent number 11,393,516
- Issue date Jul 19, 2022
- Western Digital Technologies, Inc.
- Thao A. Nguyen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus and methods for magnetic memory devices with magnetic ass...
- Patent number 11,283,008
- Issue date Mar 22, 2022
- Western Digital Technologies, Inc.
- Thao A. Nguyen
- G11 - INFORMATION STORAGE
Information Patent Grant
Spintronic devices with narrow spin polarization layers
- Patent number 10,943,611
- Issue date Mar 9, 2021
- Western Digital Technologies, Inc.
- James Mac Freitag
- G11 - INFORMATION STORAGE
Information Patent Grant
Reversed mode spin torque oscillator with shaped field generation l...
- Patent number 10,872,627
- Issue date Dec 22, 2020
- Western Digital Technologies, Inc.
- Quang Le
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic sensors with effectively shaped side shields
- Patent number 10,839,845
- Issue date Nov 17, 2020
- Western Digital Technologies, Inc.
- Quang Le
- G11 - INFORMATION STORAGE
Information Patent Grant
Reversed mode spin torque oscillator with shaped field generation l...
- Patent number 10,762,917
- Issue date Sep 1, 2020
- Western Digital Technologies, Inc.
- Quang Le
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic sensor using spin hall effect
- Patent number 10,720,570
- Issue date Jul 21, 2020
- Western Digital Technologies, Inc.
- Quang Le
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic sensors with effectively shaped side shields
- Patent number 10,381,032
- Issue date Aug 13, 2019
- Western Digital Technologies, Inc.
- Quang Le
- G11 - INFORMATION STORAGE
Information Patent Grant
Anisotropy field induced self pinned recessed antiferromagnetic reader
- Patent number 10,311,901
- Issue date Jun 4, 2019
- Western Digital Technologies, Inc.
- Quang Le
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic read sensor with independently extended pinned layer and s...
- Patent number 9,053,721
- Issue date Jun 9, 2015
- HGST Netherlands B.V.
- Yongchul Ahn
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic bias structure for magnetoresistive sensor having a scisso...
- Patent number 8,907,666
- Issue date Dec 9, 2014
- HGST Netherlands B.V.
- Quang Le
- G01 - MEASURING TESTING
Information Patent Grant
Patterning embedded control lines for vertically stacked semiconduc...
- Patent number 8,896,070
- Issue date Nov 25, 2014
- Seagate Technology LLC
- Hyung-Kyu Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Shape enhanced pin read head magnetic transducer with stripe height...
- Patent number 8,836,059
- Issue date Sep 16, 2014
- HGST Netherlands B.V.
- Yongchul Ahn
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic sensor having hard bias structure for optimized hard bias...
- Patent number 8,797,694
- Issue date Aug 5, 2014
- HGST Netherlands B.V.
- Quang Le
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Non-volatile resistive sense memory with improved switching
- Patent number 8,686,388
- Issue date Apr 1, 2014
- Seagater Technology LLC
- Andreas Roelofs
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for manufacturing a magnetic sensor using two step ion milling
- Patent number 8,615,868
- Issue date Dec 31, 2013
- HGST Netherlands B.V.
- Yongchul Ahn
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Non-volatile resistive sense memory with praseodymium calcium manga...
- Patent number 8,227,783
- Issue date Jul 24, 2012
- Seagate Technology LLC
- Andreas Roelofs
- G11 - INFORMATION STORAGE
Information Patent Grant
nvSRAM having variable magnetic resistors
- Patent number 8,194,438
- Issue date Jun 5, 2012
- Seagate Technology LLC
- Yongchul Ahn
- G11 - INFORMATION STORAGE
Information Patent Grant
Conductive via plug formation
- Patent number 8,193,089
- Issue date Jun 5, 2012
- Seagate Technology LLC
- Antoine Khoueir
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Patterning embedded control lines for vertically stacked semiconduc...
- Patent number 8,183,126
- Issue date May 22, 2012
- Seagate Technology LLC
- Hyung-Kyu Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Isolation technology for submicron semiconductor devices
- Patent number 8,030,172
- Issue date Oct 4, 2011
- Cypress Semiconductor Corporation
- Yongchul Ahn
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of fabricating a magnetic stack design with decreased substr...
- Patent number 7,998,758
- Issue date Aug 16, 2011
- Seagate Technology LLC
- Yongchul Ahn
- G11 - INFORMATION STORAGE
Information Patent Grant
Active protection device for resistive random access memory (RRAM)...
- Patent number 7,965,538
- Issue date Jun 21, 2011
- Seagate Technology LLC
- Yongchul Ahn
- G11 - INFORMATION STORAGE
Information Patent Grant
Methods of forming semiconductor structures, and articles and devic...
- Patent number 6,770,566
- Issue date Aug 3, 2004
- Cypress Semiconductor Corporation
- Yongchul Ahn
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Isolation technology for submicron semiconductor devices
- Patent number 6,727,161
- Issue date Apr 27, 2004
- Cypress Semiconductor Corp.
- Yongchul Ahn
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Spin Torque Oscillator with Multilayer Seed for Improved Performanc...
- Publication number 20230410840
- Publication date Dec 21, 2023
- Western Digital Technologies, Inc.
- James Mac FREITAG
- G11 - INFORMATION STORAGE
Information Patent Application
SPINTRONIC DEVICES WITH SELF-COOLING FUNCTION
- Publication number 20230030248
- Publication date Feb 2, 2023
- Western Digital Technologies, Inc.
- Susumu OKAMURA
- G11 - INFORMATION STORAGE
Information Patent Application
BiSb Topological Insulator with Seed Layer or Interlayer to Prevent...
- Publication number 20230027086
- Publication date Jan 26, 2023
- Western Digital Technologies, Inc.
- Quang LE
- G11 - INFORMATION STORAGE
Information Patent Application
SOT-BASED SPIN TORQUE OSCILLATORS FOR OSCILLATORY NEURAL NETWORKS
- Publication number 20220122647
- Publication date Apr 21, 2022
- Western Digital Technologies, Inc.
- Thao A. Nguyen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
APPARATUS AND METHODS FOR MAGNETIC MEMORY DEVICES WITH MAGNETIC ASS...
- Publication number 20220069202
- Publication date Mar 3, 2022
- Western Digital Technologies, Inc.
- Thao A. Nguyen
- G11 - INFORMATION STORAGE
Information Patent Application
MATRIX-VECTOR MULTIPLICATION USING SOT-BASED NON-VOLATILE MEMORY CELLS
- Publication number 20220044103
- Publication date Feb 10, 2022
- Western Digital Technologies, Inc.
- Thao A. Nguyen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
BiSb Topological Insulator with Seed Layer or Interlayer to Prevent...
- Publication number 20210336127
- Publication date Oct 28, 2021
- Western Digital Technologies, Inc.
- Quang LE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
REVERSED MODE SPIN TORQUE OSCILLATOR WITH SHAPED FIELD GENERATION L...
- Publication number 20200372929
- Publication date Nov 26, 2020
- Western Digital Technologies, Inc.
- Quang LE
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC SENSORS WITH EFFECTIVELY SHAPED SIDE SHIELDS
- Publication number 20190333534
- Publication date Oct 31, 2019
- Western Digital Technologies, Inc.
- Quang Le
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC SENSORS WITH EFFECTIVELY SHAPED SIDE SHIELDS
- Publication number 20190221232
- Publication date Jul 18, 2019
- Western Digital Technologies, Inc.
- Quang Le
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC SENSOR USING SPIN HALL EFFECT
- Publication number 20180358543
- Publication date Dec 13, 2018
- Western Digital Technologies, Inc.
- Quang Le
- G11 - INFORMATION STORAGE
Information Patent Application
LOW RESISTANCE MAGNETIC SENSOR WITH EXTENDED PINNED LAYER STRUCTURE
- Publication number 20150118520
- Publication date Apr 30, 2015
- HGST NETHERLANDS B.V.
- Yongchul Ahn
- G11 - INFORMATION STORAGE
Information Patent Application
SHAPE ENHANCED PIN READ HEAD MAGNETIC TRANSDUCER WITH STRIPE HEIGHT...
- Publication number 20140175576
- Publication date Jun 26, 2014
- HGST NETHERLANDS B.V.
- Yongchul AHN
- B82 - NANO-TECHNOLOGY
Information Patent Application
MAGNETIC SENSOR HAVING HARD BIAS STRUCTURE FOR OPTIMIZED HARD BIAS...
- Publication number 20130163121
- Publication date Jun 27, 2013
- Hitachi Global Storage Technologies Netherlands B.V.
- Quang Le
- B82 - NANO-TECHNOLOGY
Information Patent Application
METHOD FOR MANUFACTURING A MAGNETIC SENSOR USING TWO STEP ION MILLING
- Publication number 20130135772
- Publication date May 30, 2013
- Hitachi Global Storage Technologies Netherlands B.V.
- Yongchul Ahn
- B82 - NANO-TECHNOLOGY
Information Patent Application
MAGNETIC BIAS STRUCTURE FOR MAGNETORESISTIVE SENSOR HAVING A SCISSO...
- Publication number 20130082696
- Publication date Apr 4, 2013
- Hitachi Global Storage Technologies Netherlands B.V.
- Quang Le
- G01 - MEASURING TESTING
Information Patent Application
MAGNETIC BIAS STRUCTURE FOR MAGNETORESISTIVE SENSOR
- Publication number 20130083432
- Publication date Apr 4, 2013
- Hitachi Global Storage Technologies Netherlands B.V.
- Quang Le
- G01 - MEASURING TESTING
Information Patent Application
NON-VOLATILE RESISTIVE SENSE MEMORY WITH IMPROVED SWITCHING
- Publication number 20120273744
- Publication date Nov 1, 2012
- Seagate Technology LLC
- Andreas Roelofs
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD FOR MANUFACTURING AN ADVANCED MAGNETIC READ SENSOR
- Publication number 20120231296
- Publication date Sep 13, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Quang Le
- G01 - MEASURING TESTING
Information Patent Application
Patterning Embedded Control Lines for Vertically Stacked Semiconduc...
- Publication number 20120199915
- Publication date Aug 9, 2012
- Seagate Technology LLC
- Hyung-Kyu Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VERTICAL TRANSISTOR MEMORY ARRAY
- Publication number 20120080725
- Publication date Apr 5, 2012
- Seagate Technology LLC
- Peter Nicholas Manos
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Active Protection Device for Resistive Random Access Memory (RRAM)...
- Publication number 20110007552
- Publication date Jan 13, 2011
- Seagate Technology LLC
- Yongchul Ahn
- G11 - INFORMATION STORAGE
Information Patent Application
Patterning Embedded Control Lines for Vertically Stacked Semiconduc...
- Publication number 20110006377
- Publication date Jan 13, 2011
- Seagate Technology LLC
- Hyung-Kyu Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NON-VOLATILE RESISTIVE SENSE MEMORY
- Publication number 20110006275
- Publication date Jan 13, 2011
- Seagate Technology LLC
- Andreas Roelofs
- G11 - INFORMATION STORAGE
Information Patent Application
Low Temperature Deposition of Amorphous Thin Films
- Publication number 20110005920
- Publication date Jan 13, 2011
- Seagate Technology LLC
- Ivan Petrov Ivanov
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Conductive Via Plug Formation
- Publication number 20110006436
- Publication date Jan 13, 2011
- Seagate Technology LLC
- Antoine Khoueir
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CELL PATTERNING WITH MULTIPLE HARD MASKS
- Publication number 20100327248
- Publication date Dec 30, 2010
- Seagate Technology LLC
- Antoine Khoueir
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
nvSRAM HAVING VARIABLE MAGNETIC RESISTORS
- Publication number 20100202191
- Publication date Aug 12, 2010
- Seagate Technology LLC
- Yongchul Ahn
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC STACK DESIGN WITH DECREASED SUBSTRATE STRESS
- Publication number 20100109107
- Publication date May 6, 2010
- Seagate Technology LLC
- Yongchul Ahn
- G11 - INFORMATION STORAGE
Information Patent Application
MEMORY DEVICE DESIGN
- Publication number 20100109085
- Publication date May 6, 2010
- Seagate Technology LLC
- Jinyoung Kim
- H01 - BASIC ELECTRIC ELEMENTS

Yongchul Ahn

Person

Patents Grantslast 30 patents

Spintronic devices with self-cooling function

Spin torque oscillator with multilayer seed for improved performanc...

BiSb topological insulator with seed layer or interlayer to prevent...

SOT-based spin torque oscillators for oscillatory neural networks

Apparatus and methods for magnetic memory devices with magnetic ass...

Spintronic devices with narrow spin polarization layers

Reversed mode spin torque oscillator with shaped field generation l...

Magnetic sensors with effectively shaped side shields

Reversed mode spin torque oscillator with shaped field generation l...

Magnetic sensor using spin hall effect

Magnetic sensors with effectively shaped side shields

Anisotropy field induced self pinned recessed antiferromagnetic reader

Magnetic read sensor with independently extended pinned layer and s...

Magnetic bias structure for magnetoresistive sensor having a scisso...

Patterning embedded control lines for vertically stacked semiconduc...

Shape enhanced pin read head magnetic transducer with stripe height...

Magnetic sensor having hard bias structure for optimized hard bias...

Non-volatile resistive sense memory with improved switching

Method for manufacturing a magnetic sensor using two step ion milling

Non-volatile resistive sense memory with praseodymium calcium manga...

nvSRAM having variable magnetic resistors

Conductive via plug formation

Patterning embedded control lines for vertically stacked semiconduc...

Isolation technology for submicron semiconductor devices

Method of fabricating a magnetic stack design with decreased substr...

Active protection device for resistive random access memory (RRAM)...

Methods of forming semiconductor structures, and articles and devic...

Isolation technology for submicron semiconductor devices

Patents Applicationslast 30 patents

Spin Torque Oscillator with Multilayer Seed for Improved Performanc...

SPINTRONIC DEVICES WITH SELF-COOLING FUNCTION

BiSb Topological Insulator with Seed Layer or Interlayer to Prevent...

SOT-BASED SPIN TORQUE OSCILLATORS FOR OSCILLATORY NEURAL NETWORKS

APPARATUS AND METHODS FOR MAGNETIC MEMORY DEVICES WITH MAGNETIC ASS...

MATRIX-VECTOR MULTIPLICATION USING SOT-BASED NON-VOLATILE MEMORY CELLS

BiSb Topological Insulator with Seed Layer or Interlayer to Prevent...

REVERSED MODE SPIN TORQUE OSCILLATOR WITH SHAPED FIELD GENERATION L...

MAGNETIC SENSORS WITH EFFECTIVELY SHAPED SIDE SHIELDS

MAGNETIC SENSORS WITH EFFECTIVELY SHAPED SIDE SHIELDS

MAGNETIC SENSOR USING SPIN HALL EFFECT

LOW RESISTANCE MAGNETIC SENSOR WITH EXTENDED PINNED LAYER STRUCTURE

SHAPE ENHANCED PIN READ HEAD MAGNETIC TRANSDUCER WITH STRIPE HEIGHT...

MAGNETIC SENSOR HAVING HARD BIAS STRUCTURE FOR OPTIMIZED HARD BIAS...

METHOD FOR MANUFACTURING A MAGNETIC SENSOR USING TWO STEP ION MILLING

MAGNETIC BIAS STRUCTURE FOR MAGNETORESISTIVE SENSOR HAVING A SCISSO...

MAGNETIC BIAS STRUCTURE FOR MAGNETORESISTIVE SENSOR

NON-VOLATILE RESISTIVE SENSE MEMORY WITH IMPROVED SWITCHING

METHOD FOR MANUFACTURING AN ADVANCED MAGNETIC READ SENSOR

Patterning Embedded Control Lines for Vertically Stacked Semiconduc...

VERTICAL TRANSISTOR MEMORY ARRAY

Active Protection Device for Resistive Random Access Memory (RRAM)...

Patterning Embedded Control Lines for Vertically Stacked Semiconduc...

NON-VOLATILE RESISTIVE SENSE MEMORY

Low Temperature Deposition of Amorphous Thin Films

Conductive Via Plug Formation

CELL PATTERNING WITH MULTIPLE HARD MASKS

nvSRAM HAVING VARIABLE MAGNETIC RESISTORS

MAGNETIC STACK DESIGN WITH DECREASED SUBSTRATE STRESS

MEMORY DEVICE DESIGN