Shield layers on both sides of the main pole

Industry

CPC
G11B5/315

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Parent Industries

GPHYSICS G11Information storage G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER G11B5/00Recording by magnetisation or demagnetisation of a record carrier Reproducing by magnetic means Record carriers therefor

Current Industry

G11B5/315Shield layers on both sides of the main pole

Industries

Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording head with trailing shield having multiple throat...
- Patent number 11,894,028
- Issue date Feb 6, 2024
- Western Digital Technologies, Inc.
- Quan-Chiu Harry Lam
- G11 - INFORMATION STORAGE
Information Patent Grant
Cross track current design for energy assisted magnetic recording
- Patent number 11,881,237
- Issue date Jan 23, 2024
- Western Digital Technologies, Inc.
- Muhammad Asif Bashir
- G11 - INFORMATION STORAGE
Information Patent Grant
Leading shield for magnetic recording heads
- Patent number 11,881,235
- Issue date Jan 23, 2024
- Western Digital Technologies, Inc.
- Alexander Goncharov
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording devices having external alternating current sources
- Patent number 11,869,548
- Issue date Jan 9, 2024
- Western Digital Technologies, Inc.
- Muhammad Asif Bashir
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording devices using virtual side shields for improved...
- Patent number 11,854,581
- Issue date Dec 26, 2023
- Western Digital Technologies, Inc.
- Suping Song
- G11 - INFORMATION STORAGE
Information Patent Grant
Anti-parallel coupled writer shields with stable magnetic domain co...
- Patent number 11,848,034
- Issue date Dec 19, 2023
- Western Digital Technologies, Inc.
- Yingjian Chen
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording (PMR) writer with improved trailin...
- Patent number 11,790,940
- Issue date Oct 17, 2023
- Headway Technologies, Inc.
- Sanghyun Lim
- G11 - INFORMATION STORAGE
Information Patent Grant
SOT film stack for differential reader
- Patent number 11,776,567
- Issue date Oct 3, 2023
- Western Digital Technologies, Inc.
- Cherngye Hwang
- G11 - INFORMATION STORAGE
Information Patent Grant
Spin injection assisted magnetic recording
- Patent number 11,756,577
- Issue date Sep 12, 2023
- Headway Technologies, Inc.
- Yan Wu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording devices using virtual side shields for improved...
- Patent number 11,749,299
- Issue date Sep 5, 2023
- Western Digital Technologies, Inc.
- Suping Song
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device including a stacked bod...
- Patent number 11,705,152
- Issue date Jul 18, 2023
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Areal density capability improvement with a main pole skin
- Patent number 11,682,418
- Issue date Jun 20, 2023
- Western Digital Technologies, Inc.
- Suping Song
- G11 - INFORMATION STORAGE
Information Patent Grant
Sampled-data polydyne feedforward position control
- Patent number 11,676,629
- Issue date Jun 13, 2023
- Western Digital Technologies, Inc.
- Takehiko Eguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording head with stable magnetization of shields
- Patent number 11,676,627
- Issue date Jun 13, 2023
- Western Digital Technologies, Inc.
- Quan-Chiu Harry Lam
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording devices having negative polarization layer to en...
- Patent number 11,657,836
- Issue date May 23, 2023
- Western Digital Technologies, Inc.
- James Mac Freitag
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording head with trailing shield having multiple throat...
- Patent number 11,657,837
- Issue date May 23, 2023
- Western Digital Technologies, Inc.
- Quan-Chiu Harry Lam
- G11 - INFORMATION STORAGE
Information Patent Grant
Spin-torque oscillator with multilayer seed layer between the write...
- Patent number 11,646,052
- Issue date May 9, 2023
- Western Digital Technologies, Inc.
- James Mac Freitag
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording writer with improved main pole shape
- Patent number 11,636,873
- Issue date Apr 25, 2023
- Headway Technologies, Inc.
- Ying Liu
- G11 - INFORMATION STORAGE
Information Patent Grant
Plating based side shield define and application in magnetic head
- Patent number 11,626,129
- Issue date Apr 11, 2023
- Western Digital Technologies, Inc.
- Jinqiu Zhang
- G11 - INFORMATION STORAGE
Information Patent Grant
Three terminal magnetic recording head
- Patent number 11,600,293
- Issue date Mar 7, 2023
- Western Digital Technologies, Inc.
- Terence Lam
- G11 - INFORMATION STORAGE
Information Patent Grant
Write heads having conducting side gap for directing current
- Patent number 11,557,314
- Issue date Jan 17, 2023
- Western Digital Technologies, Inc.
- Muhammad Asif Bashir
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device with recording head including spin torque osci...
- Patent number 11,508,400
- Issue date Nov 22, 2022
- Kabushiki Kaisha Toshiba
- Takuya Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic recording devices having cross-track current flow to facil...
- Patent number 11,508,401
- Issue date Nov 22, 2022
- Western Digital Technologies, Inc.
- Muhammad Asif Bashir
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording device including a magnetic head including a sta...
- Patent number 11,495,250
- Issue date Nov 8, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method for magnetic head for perpendicular magnetic r...
- Patent number 11,495,251
- Issue date Nov 8, 2022
- Headway Technologies, Inc.
- Yukinori Ikegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Evaluation method of magnetic head and evaluation device of magneti...
- Patent number 11,488,623
- Issue date Nov 1, 2022
- Kabushiki Kaisha Toshiba
- Hirofumi Suto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device including a stacked bod...
- Patent number 11,443,762
- Issue date Sep 13, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device with stacked body mater...
- Patent number 11,437,059
- Issue date Sep 6, 2022
- Kabushiki Kaisha Toshiba
- Hitoshi Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Areal density capability improvement with a main pole skin
- Patent number 11,437,058
- Issue date Sep 6, 2022
- Western Digital Technologies, Inc.
- Suping Song
- G11 - INFORMATION STORAGE
Information Patent Grant
Dual writer for advanced magnetic recording
- Patent number 11,430,469
- Issue date Aug 30, 2022
- Western Digital Technologies, Inc.
- Thao A. Nguyen
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Method to Enhance Spin Torque Layer Performance in a Spintronic Device
- Publication number 20240135966
- Publication date Apr 25, 2024
- Western Digital Technologies, Inc.
- Muhammad ASIF BASHIR
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular Magnetic Recording Writer With Tunable Pole Side Brid...
- Publication number 20240135965
- Publication date Apr 25, 2024
- HEADWAY TECHNOLOGIES, INC.
- Yue Liu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Recording Devices Having External Alternating Current Sources
- Publication number 20240112694
- Publication date Apr 4, 2024
- Western Digital Technologies, Inc.
- Muhammad ASIF BASHIR
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING HEAD WITH STABLE MAGNETIZATION OF SHIELDS
- Publication number 20230274761
- Publication date Aug 31, 2023
- Western Digital Technologies, Inc.
- Quan-Chiu Harry LAM
- G11 - INFORMATION STORAGE
Information Patent Application
Leading Shield For Magnetic Recording Heads
- Publication number 20230267953
- Publication date Aug 24, 2023
- Western Digital Technologies, Inc.
- Alexander GONCHAROV
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Recording Head with Trailing Shield Having Multiple Throat...
- Publication number 20230118634
- Publication date Apr 20, 2023
- Western Digital Technologies, Inc.
- Quan-Chiu Harry LAM
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20230062839
- Publication date Mar 2, 2023
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Recording Head with Stable Magnetization of Shields
- Publication number 20230044051
- Publication date Feb 9, 2023
- Western Digital Technologies, Inc.
- Quan-Chiu Harry LAM
- G11 - INFORMATION STORAGE
Information Patent Application
AREAL DENSITY CAPABILITY IMPROVEMENT WITH A MAIN POLE SKIN
- Publication number 20220358957
- Publication date Nov 10, 2022
- Western Digital Technologies, Inc.
- Suping SONG
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Recording Devices Using Virtual Side Shields for Improved...
- Publication number 20220343944
- Publication date Oct 27, 2022
- Western Digital Technologies, Inc.
- Suping SONG
- G11 - INFORMATION STORAGE
Information Patent Application
WRITER WITH ADAPTIVE SIDE GAP
- Publication number 20220165300
- Publication date May 26, 2022
- HEADWAY TECHNOLOGIES, INC.
- Ying Liu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Recording Devices Having Negative Polarization Layer To En...
- Publication number 20220148619
- Publication date May 12, 2022
- Western Digital Technologies, Inc.
- James Mac FREITAG
- G11 - INFORMATION STORAGE
Information Patent Application
EVALUATION METHOD OF MAGNETIC HEAD AND EVALUATION DEVICE OF MAGNETI...
- Publication number 20220122632
- Publication date Apr 21, 2022
- Kabushiki Kaisha Toshiba
- Hirofumi SUTO
- G11 - INFORMATION STORAGE
Information Patent Application
Spin Injection Assisted Magnetic Recording
- Publication number 20220084545
- Publication date Mar 17, 2022
- HEADWAY TECHNOLOGIES, INC.
- Yan Wu
- G11 - INFORMATION STORAGE
Information Patent Application
SOT Film Stack For Differential Reader
- Publication number 20220013138
- Publication date Jan 13, 2022
- Western Digital Technologies, Inc.
- Cherngye HWANG
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING DEVICES HAVING NEGATIVE POLARIZATION LAYER TO EN...
- Publication number 20210407534
- Publication date Dec 30, 2021
- Western Digital Technologies, Inc.
- James Mac FREITAG
- G11 - INFORMATION STORAGE
Information Patent Application
Dual Writer For Advanced Magnetic Recording
- Publication number 20210390976
- Publication date Dec 16, 2021
- Western Digital Technologies, Inc.
- Thao A. NGUYEN
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20210375309
- Publication date Dec 2, 2021
- Kabushiki Kaisha Toshiba
- Hitoshi IWASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
Areal Density Capability Improvement With A Main Pole Skin
- Publication number 20210280208
- Publication date Sep 9, 2021
- Western Digital Technologies, Inc.
- Suping SONG
- G11 - INFORMATION STORAGE
Information Patent Application
Spin-Torque Oscillator With Multilayer Seed Layer Between The Write...
- Publication number 20210233560
- Publication date Jul 29, 2021
- Western Digital Technologies, Inc.
- James Mac FREITAG
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING DEVICE
- Publication number 20210166724
- Publication date Jun 3, 2021
- Kabushiki Kaisha Toshiba
- Masayuki TAKAGISHI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND WRITE PROCESSING METHOD
- Publication number 20210166725
- Publication date Jun 3, 2021
- Kabushiki Kaisha Toshiba
- Yusuke Tomoda
- G11 - INFORMATION STORAGE
Information Patent Application
DUAL WRITER FOR ADVANCED MAGNETIC RECORDING
- Publication number 20210158839
- Publication date May 27, 2021
- Western Digital Technologies, Inc.
- Thao A. NGUYEN
- G11 - INFORMATION STORAGE
Information Patent Application
WRITE TRANSDUCER WITH SYMMETRIC YOKE STRUCTURE
- Publication number 20210142822
- Publication date May 13, 2021
- International Business Machines Corporation
- Robert Fontana
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20210142821
- Publication date May 13, 2021
- Kabushiki Kaisha Toshiba
- Hitoshi IWASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Recording Devices Using Virtual Side Shields for Improved...
- Publication number 20210074322
- Publication date Mar 11, 2021
- Western Digital Technologies, Inc.
- Suping SONG
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20210074320
- Publication date Mar 11, 2021
- Kabushiki Kaisha Toshiba
- Masayuki TAKAGISHI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20210074319
- Publication date Mar 11, 2021
- Kabushiki Kaisha Toshiba
- Masayuki TAKAGISHI
- G11 - INFORMATION STORAGE
Information Patent Application
Writer with HMTS (HIgh Moment Trailing Shield) Aligned with Spin Layer
- Publication number 20210012794
- Publication date Jan 14, 2021
- HEADWAY TECHNOLOGIES, INC.
- Yuhui Tang
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING DEVICES AND METHODS USING A WRITE-FIELD-ENHANCEM...
- Publication number 20200349967
- Publication date Nov 5, 2020
- Western Digital Technologies, Inc.
- Gonçalo Marcos Baião DE ALBUQUERQUE
- G11 - INFORMATION STORAGE

Shield layers on both sides of the main pole

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Magnetic recording head with trailing shield having multiple throat...

Cross track current design for energy assisted magnetic recording

Leading shield for magnetic recording heads

Magnetic recording devices having external alternating current sources

Magnetic recording devices using virtual side shields for improved...

Anti-parallel coupled writer shields with stable magnetic domain co...

Perpendicular magnetic recording (PMR) writer with improved trailin...

SOT film stack for differential reader

Spin injection assisted magnetic recording

Magnetic recording devices using virtual side shields for improved...

Magnetic head and magnetic recording device including a stacked bod...

Areal density capability improvement with a main pole skin

Sampled-data polydyne feedforward position control

Magnetic recording head with stable magnetization of shields

Magnetic recording devices having negative polarization layer to en...

Magnetic recording head with trailing shield having multiple throat...

Spin-torque oscillator with multilayer seed layer between the write...

Magnetic recording writer with improved main pole shape

Plating based side shield define and application in magnetic head

Three terminal magnetic recording head

Write heads having conducting side gap for directing current

Magnetic disk device with recording head including spin torque osci...

Magnetic recording devices having cross-track current flow to facil...

Magnetic recording device including a magnetic head including a sta...

Manufacturing method for magnetic head for perpendicular magnetic r...

Evaluation method of magnetic head and evaluation device of magneti...

Magnetic head and magnetic recording device including a stacked bod...

Magnetic head and magnetic recording device with stacked body mater...

Areal density capability improvement with a main pole skin

Dual writer for advanced magnetic recording

Patents Applicationslast 30 patents

Method to Enhance Spin Torque Layer Performance in a Spintronic Device

Perpendicular Magnetic Recording Writer With Tunable Pole Side Brid...

Magnetic Recording Devices Having External Alternating Current Sources

MAGNETIC RECORDING HEAD WITH STABLE MAGNETIZATION OF SHIELDS

Leading Shield For Magnetic Recording Heads

Magnetic Recording Head with Trailing Shield Having Multiple Throat...

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

Magnetic Recording Head with Stable Magnetization of Shields

AREAL DENSITY CAPABILITY IMPROVEMENT WITH A MAIN POLE SKIN

Magnetic Recording Devices Using Virtual Side Shields for Improved...

WRITER WITH ADAPTIVE SIDE GAP

Magnetic Recording Devices Having Negative Polarization Layer To En...

EVALUATION METHOD OF MAGNETIC HEAD AND EVALUATION DEVICE OF MAGNETI...

Spin Injection Assisted Magnetic Recording

SOT Film Stack For Differential Reader

MAGNETIC RECORDING DEVICES HAVING NEGATIVE POLARIZATION LAYER TO EN...

Dual Writer For Advanced Magnetic Recording

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

Areal Density Capability Improvement With A Main Pole Skin

Spin-Torque Oscillator With Multilayer Seed Layer Between The Write...

MAGNETIC RECORDING DEVICE

MAGNETIC DISK DEVICE AND WRITE PROCESSING METHOD

DUAL WRITER FOR ADVANCED MAGNETIC RECORDING

WRITE TRANSDUCER WITH SYMMETRIC YOKE STRUCTURE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

Magnetic Recording Devices Using Virtual Side Shields for Improved...

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

Writer with HMTS (HIgh Moment Trailing Shield) Aligned with Spin Layer

MAGNETIC RECORDING DEVICES AND METHODS USING A WRITE-FIELD-ENHANCEM...