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G11B5/23
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Parent Industries
G
PHYSICS
G11
Information storage
G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B5/00
Recording by magnetisation or demagnetisation of a record carrier Reproducing by magnetic means Record carriers therefor
Current Industry
G11B5/23
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic disk device with magnetic disk overwrite characteristics a...
Patent number
11,984,143
Issue date
May 14, 2024
Kabushiki Kaisha Toshiba
Hiroshi Isokawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording head with assisting electric current in trailing...
Patent number
11,900,971
Issue date
Feb 13, 2024
Western Digital Technologies, Inc.
Alexander Goncharov
G11 - INFORMATION STORAGE
Information
Patent Grant
Spin torque oscillator with enhanced spin polarizer
Patent number
11,881,236
Issue date
Jan 23, 2024
Western Digital Technologies, Inc.
James Mac Freitag
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
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
Magnetic head and magnetic recording/reproducing device
Patent number
11,817,135
Issue date
Nov 14, 2023
Kabushiki Kaisha Toshiba
Gaku Koizumi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head including multiple magnetic layers and magnetic recor...
Patent number
11,810,601
Issue date
Nov 7, 2023
Kabushiki Kaisha Toshiba
Yuji Nakagawa
G11 - INFORMATION STORAGE
Information
Patent Grant
MAMR recording head with SAF trailing shield notch and/or bump
Patent number
11,769,522
Issue date
Sep 26, 2023
Western Digital Technologies, Inc.
Alexander Goncharov
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
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
Tape head design having a null shield for same gap verify
Patent number
11,682,421
Issue date
Jun 20, 2023
Western Digital Technologies, Inc.
David J. Seagle
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 disk device with magnetic head size arrangement
Patent number
11,651,782
Issue date
May 16, 2023
Kabushiki Kaisha Toshiba
Hiroshi Isokawa
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
Tape head design having an antiferromagnetic coupling (AFC) null sh...
Patent number
11,646,054
Issue date
May 9, 2023
Western Digital Technologies, Inc.
Quang Le
G11 - INFORMATION STORAGE
Information
Patent Grant
Tape head design having same gap verify capabilities
Patent number
11,646,053
Issue date
May 9, 2023
Western Digital Technologies, Inc.
David J. Seagle
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording head having a magnetic pole and a write shield
Patent number
11,636,874
Issue date
Apr 25, 2023
TDK Corporation
Zhenyao Tang
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with stacked body having specified compositions of ma...
Patent number
11,626,130
Issue date
Apr 11, 2023
Kabushiki Kaisha Toshiba
Naoyuki Narita
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk drive biasing two write assist elements using three terminal c...
Patent number
11,615,804
Issue date
Mar 28, 2023
Western Digital Technologies, Inc.
Joey M. Poss
G11 - INFORMATION STORAGE
Information
Patent Grant
Energy-assisted magnetic recording head with protective cap
Patent number
11,605,397
Issue date
Mar 14, 2023
Western Digital Technologies, Inc.
John Pierre Herber
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
Magnetic recording device and magnetic recording method utilizing a...
Patent number
11,568,890
Issue date
Jan 31, 2023
Kabushiki Kaisha Toshiba
Hirofumi Suto
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic flux guiding device with spin torque oscillator (STO) film...
Patent number
11,568,891
Issue date
Jan 31, 2023
Headway Technologies, Inc.
Wenyu Chen
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
Energy assisted magnetic recording head having improved areal densi...
Patent number
11,557,315
Issue date
Jan 17, 2023
Western Digital Technologies, Inc.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Grant
Writer with laterally graded spin layer MsT
Patent number
11,545,175
Issue date
Jan 3, 2023
Headway Technologies, Inc.
Ying Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head including main pole having top surface including firs...
Patent number
11,514,931
Issue date
Nov 29, 2022
Headway Technologies, Inc.
Hironori Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording head having same-gap read-after-write
Patent number
11,514,929
Issue date
Nov 29, 2022
Western Digital Technologies, Inc.
Robert G. Biskeborn
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
Magnetic head and magnetic recording device having magnetic layers...
Patent number
11,462,239
Issue date
Oct 4, 2022
Kabushiki Kaisha Toshiba
Tazumi Nagasawa
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Magnetic Recording Head With Assisting Electric Current In Trailing...
Publication number
20240144964
Publication date
May 2, 2024
Western Digital Technologies, Inc.
Alexander GONCHAROV
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING/REPRODUCING DEVICE
Publication number
20230245678
Publication date
Aug 3, 2023
Kabushiki Kaisha Toshiba
Gaku Koizumi
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC DISK DEVICE
Publication number
20230245679
Publication date
Aug 3, 2023
Kabushiki Kaisha Toshiba
Hiroshi ISOKAWA
G11 - INFORMATION STORAGE
Information
Patent Application
GLASS FOR MAGNETIC RECORDING MEDIUM SUBSTRATE OR FOR GLASS SPACER T...
Publication number
20230192530
Publication date
Jun 22, 2023
Hoya Corporation
Koichi SATO
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic Flux Guiding Device With Spin Torque Oscillator (STO) Film...
Publication number
20230178103
Publication date
Jun 8, 2023
HEADWAY TECHNOLOGIES, INC.
Wenyu Chen
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
Tape Head Design Having Same Gap Verify Capabilities
Publication number
20220415355
Publication date
Dec 29, 2022
Western Digital Technologies, Inc.
David J. SEAGLE
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
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
Publication number
20220335968
Publication date
Oct 20, 2022
Kabushiki Kaisha Toshiba
Naoyuki NARITA
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic Recording Head Having Same-Gap Read-After-Write
Publication number
20220319540
Publication date
Oct 6, 2022
Western Digital Technologies, Inc.
Robert G. BISKEBORN
G11 - INFORMATION STORAGE
Information
Patent Application
Writer with Laterally Graded Spin Layer MsT
Publication number
20220199113
Publication date
Jun 23, 2022
HEADWAY TECHNOLOGIES, INC.
Ying Liu
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
Energy Assisted Magnetic Recording Head Having Improved Areal Densi...
Publication number
20220108715
Publication date
Apr 7, 2022
Western Digital Technologies, Inc.
Suping SONG
G11 - INFORMATION STORAGE
Information
Patent Application
Method to Reduce Baseline Shift for a SOT Differential Reader
Publication number
20220013139
Publication date
Jan 13, 2022
Western Digital Technologies, Inc.
Quang LE
G11 - INFORMATION STORAGE
Information
Patent Application
ENERGY-ASSISTED MAGNETIC RECORDING HEAD WITH PROTECTIVE CAP
Publication number
20210407535
Publication date
Dec 30, 2021
Western Digital Technologies, Inc.
John Pierre Herber
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
20210375308
Publication date
Dec 2, 2021
Kabushiki Kaisha Toshiba
Tazumi NAGASAWA
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
SERVO SIGNAL VERIFYING DEVICE, SERVO WRITER, METHOD OF PRODUCING MA...
Publication number
20210233558
Publication date
Jul 29, 2021
SONY CORPORATION
Hiroshi MORITA
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
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
Writer with Narrower High Moment Trailing Shield
Publication number
20210090594
Publication date
Mar 25, 2021
HEADWAY TECHNOLOGIES, INC.
Yuhui Tang
G11 - INFORMATION STORAGE
Information
Patent Application
SPIN ORBITAL TORQUE BASED MICROWAVE ASSISTED MAGNETIC RECORDING WIT...
Publication number
20210082458
Publication date
Mar 18, 2021
Western Digital Technologies, Inc.
Zhanjie LI
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
MAMR Writer With Low Resistance MAMR Stack
Publication number
20200349968
Publication date
Nov 5, 2020
Western Digital Technologies, Inc.
Michael Kuok San HO
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC WRITE HEAD WITH WRITE-FIELD ENHANCEMENT STRUCTURE INCLUDIN...
Publication number
20200342899
Publication date
Oct 29, 2020
Western Digital Technologies, Inc.
James Terrence OLSON
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING WRITE HEAD WITH SELECTED WRITE GAP CURRENT DIREC...
Publication number
20200327900
Publication date
Oct 15, 2020
Western Digital Technologies, Inc.
Zhigang BAI
G11 - INFORMATION STORAGE