"Composite" pole pieces

Industry

CPC
G11B5/1875

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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

G11B5/1875"Composite" pole pieces

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Heat-assisted magnetic recording (HAMR) head with main pole having...
- Patent number 11,881,231
- Issue date Jan 23, 2024
- Western Digital Technologies, Inc.
- Takuya Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Heat-assisted magnetic recording (HAMR) head with main pole having...
- Patent number 11,532,329
- Issue date Dec 20, 2022
- Western Digital Technologies, Inc.
- Takuya Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Write transducer with recessed portion to improve track shingling p...
- Patent number 11,373,676
- Issue date Jun 28, 2022
- International Business Machines Corporation
- Robert Fontana
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, magnetic recording and reproducing appar...
- Patent number 11,264,054
- Issue date Mar 1, 2022
- FUJIFILM Corporation
- Norihito Kasada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including spin torque oscillator
- Patent number 11,211,082
- Issue date Dec 28, 2021
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Near-field light generator and thermally-assisted magnetic recordin...
- Patent number 11,049,516
- Issue date Jun 29, 2021
- Headway Technologies, Inc.
- Yukinori Ikegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with assisted magnetic recording and method of making...
- Patent number 11,017,801
- Issue date May 25, 2021
- Western Digital Technologies, Inc.
- Venkatesh Chembrolu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with assisted magnetic recording and method of making...
- Patent number 11,017,802
- Issue date May 25, 2021
- Western Digital Technologies, Inc.
- Venkatesh Chembrolu
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording write head with heater and heat si...
- Patent number 10,796,717
- Issue date Oct 6, 2020
- Western Digital Technologies, Inc.
- Suping Song
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording write head with heater and heat si...
- Patent number 10,789,975
- Issue date Sep 29, 2020
- Western Digital Technologies, Inc.
- Suping Song
- G11 - INFORMATION STORAGE
Information Patent Grant
Assisted magnetic recording medium including a pinning layer and ma...
- Patent number 10,360,936
- Issue date Jul 23, 2019
- Showa Denko K.K.
- Kazuya Niwa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic memory device including magn...
- Patent number 10,008,220
- Issue date Jun 26, 2018
- Showa Denko K.K.
- Takayuki Fukushima
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording head having a plurality of shield layers
- Patent number 7,379,276
- Issue date May 27, 2008
- Samsung Electronics Co., Ltd.
- Young-hun Im
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having writer with embedded write gap between wear-re...
- Patent number 7,359,151
- Issue date Apr 15, 2008
- Storage Technology Corporation
- John P. Biesecker
- G11 - INFORMATION STORAGE
Information Patent Grant
Low moment-high moment write pole with non-magnetic layer for estab...
- Patent number 7,038,882
- Issue date May 2, 2006
- Seagate Technology
- Billy W. Crue
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including a pole piece with soft magnetic particles d...
- Patent number 6,134,079
- Issue date Oct 17, 2000
- Fujitsu Limited
- Takao Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic tape head with a high saturation flux density magnetic pol...
- Patent number 5,594,608
- Issue date Jan 14, 1997
- Storage Technology Corporation
- Richard H. Dee
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having separate fusion glass and laminating glass wit...
- Patent number 5,519,556
- Issue date May 21, 1996
- Sony Corporation
- Tadashi Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making a vertical recording head for contact and near con...
- Patent number 5,327,638
- Issue date Jul 12, 1994
- Maxtor Corporation
- William Haines
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for magnetic recording apparatus using a soft magneti...
- Patent number 5,173,823
- Issue date Dec 22, 1992
- Alps Electric Co., Ltd.
- Naoya Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making a composite core transducer
- Patent number 5,029,380
- Issue date Jul 9, 1991
- Ampex Corporation
- Gary T. Smukal
- G11 - INFORMATION STORAGE
Information Patent Grant
Composite core magnetic transducer having a wedge shaped core portion
- Patent number 5,001,588
- Issue date Mar 19, 1991
- Ampex Corporation
- Gary T. Smukal
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with a tape contacting surface having a metal filled...
- Patent number 4,985,796
- Issue date Jan 15, 1991
- Matsushita Electric Industrial Co., Ltd.
- Keita Ihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Extended metal in gap head
- Patent number 4,788,612
- Issue date Nov 29, 1988
- Magnetic Peripherals Inc.
- Craig M. Perlov
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing system with composite magnetic head
- Patent number 4,731,683
- Issue date Mar 15, 1988
- Hitachi, Ltd.
- Shigekazu Otomo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic write head with smooth frequency response
- Patent number 4,670,807
- Issue date Jun 2, 1987
- U.S. Philips Corporation
- Frederik W. Gorter
- G11 - INFORMATION STORAGE
Information Patent Grant
Composite magnetic core assembly having at least one side tip for a...
- Patent number 4,194,227
- Issue date Mar 18, 1980
- Victor Company of Japan, Limited
- Takashi Kitamura
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC HEAD WITH MULTILAYER CONFIGURATION BETWEEN MAGNETIC POLES...
- Publication number 20240296861
- Publication date Sep 5, 2024
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
A MAGNETIC RECORDING SYSTEM FOR RECORDING DATA ON A MAGNETIC MEDIA
- Publication number 20240233756
- Publication date Jul 11, 2024
- International Business Machines Corporation
- Hugo E. Rothuizen
- G11 - INFORMATION STORAGE
Information Patent Application
A MAGNETIC RECORDING SYSTEM FOR RECORDING DATA ON A MAGNETIC MEDIA
- Publication number 20240135963
- Publication date Apr 25, 2024
- International Business Machines Corporation
- Hugo E. Rothuizen
- G11 - INFORMATION STORAGE
Information Patent Application
HEAT-ASSISTED MAGNETIC RECORDING (HAMR) HEAD WITH MAIN POLE HAVING...
- Publication number 20230245681
- Publication date Aug 3, 2023
- Western Digital Technologies, Inc.
- Takuya MATSUMOTO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING AND REPRODUCING APPAR...
- Publication number 20210233565
- Publication date Jul 29, 2021
- FUJIFILM CORPORATION
- Norihito KASADA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD WITH ASSISTED MAGNETIC RECORDING AND METHOD OF MAKING...
- Publication number 20200381012
- Publication date Dec 3, 2020
- SANDISK TECHNOLOGIES LLC
- Venkatesh CHEMBROLU
- G11 - INFORMATION STORAGE
Information Patent Application
ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE
- Publication number 20180261245
- Publication date Sep 13, 2018
- SHOWA DENKO K.K.
- Kazuya NIWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC MEMORY DEVICE
- Publication number 20170365279
- Publication date Dec 21, 2017
- SHOWA DENKO K.K.
- Takayuki FUKUSHIMA
- G11 - INFORMATION STORAGE
Information Patent Application
Fabrication of a Tape Head with a Monobloc Closure
- Publication number 20170236536
- Publication date Aug 17, 2017
- International Business Machines Corporation
- Robert G. BISKEBORN
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording head
- Publication number 20050105214
- Publication date May 19, 2005
- SAMSUNG ELECTRONICS CO., LTD.
- Young-hun Im
- G11 - INFORMATION STORAGE
Information Patent Application
Low moment-high moment write pole with non-magnetic layer
- Publication number 20040066574
- Publication date Apr 8, 2004
- Seagate Technology LLC
- Billy W. Crue
- G11 - INFORMATION STORAGE

"Composite" pole pieces

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Heat-assisted magnetic recording (HAMR) head with main pole having...

Heat-assisted magnetic recording (HAMR) head with main pole having...

Write transducer with recessed portion to improve track shingling p...

Magnetic recording medium, magnetic recording and reproducing appar...

Magnetic head including spin torque oscillator

Near-field light generator and thermally-assisted magnetic recordin...

Magnetic head with assisted magnetic recording and method of making...

Magnetic head with assisted magnetic recording and method of making...

Perpendicular magnetic recording write head with heater and heat si...

Perpendicular magnetic recording write head with heater and heat si...

Assisted magnetic recording medium including a pinning layer and ma...

Magnetic recording medium and magnetic memory device including magn...

Magnetic recording head having a plurality of shield layers

Magnetic head having writer with embedded write gap between wear-re...

Low moment-high moment write pole with non-magnetic layer for estab...

Magnetic head including a pole piece with soft magnetic particles d...

Magnetic tape head with a high saturation flux density magnetic pol...

Magnetic head having separate fusion glass and laminating glass wit...

Method of making a vertical recording head for contact and near con...

Magnetic head for magnetic recording apparatus using a soft magneti...

Method of making a composite core transducer

Composite core magnetic transducer having a wedge shaped core portion

Magnetic head with a tape contacting surface having a metal filled...

Extended metal in gap head

Magnetic recording and reproducing system with composite magnetic head

Magnetic write head with smooth frequency response

Composite magnetic core assembly having at least one side tip for a...

Patents Applicationslast 30 patents

MAGNETIC HEAD WITH MULTILAYER CONFIGURATION BETWEEN MAGNETIC POLES...

A MAGNETIC RECORDING SYSTEM FOR RECORDING DATA ON A MAGNETIC MEDIA

A MAGNETIC RECORDING SYSTEM FOR RECORDING DATA ON A MAGNETIC MEDIA

HEAT-ASSISTED MAGNETIC RECORDING (HAMR) HEAD WITH MAIN POLE HAVING...

MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING AND REPRODUCING APPAR...

MAGNETIC HEAD WITH ASSISTED MAGNETIC RECORDING AND METHOD OF MAKING...

ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE

MAGNETIC RECORDING MEDIUM AND MAGNETIC MEMORY DEVICE

Fabrication of a Tape Head with a Monobloc Closure

Magnetic recording head

Low moment-high moment write pole with non-magnetic layer