the pole pieces being ferrite or other magnetic particles

Industry

CPC
G11B5/193

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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

G11B5/193the pole pieces being ferrite or other magnetic particles

Industries

Patents Grantslast 30 patents

Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 11,881,234
- Issue date Jan 23, 2024
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- 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
Information Patent Grant
Magnetic head and magnetic recording device
- Patent number 11,393,493
- Issue date Jul 19, 2022
- Kabushiki Kaisha Toshiba
- Yuji Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording device having magnetic layers...
- Patent number 11,138,994
- Issue date Oct 5, 2021
- Kabushiki Kaisha Toshiba
- Tazumi Nagasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Spin transfer torque oscillator (STO) with spin torque injection to...
- Patent number 11,043,234
- Issue date Jun 22, 2021
- Headway Technologies, Inc.
- Yan Wu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with stacked body and insulating portion arrangement...
- Patent number 10,943,610
- Issue date Mar 9, 2021
- Kabushiki Kaisha Toshiba
- Naoyuki Narita
- G11 - INFORMATION STORAGE
Information Patent Grant
Spin transfer torque (STT) device with template layer for Heusler a...
- Patent number 10,867,625
- Issue date Dec 15, 2020
- Western Digital Technologies, Inc.
- James Mac Freitag
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording head having a pole tip shield and a pole-shield...
- Patent number 8,810,964
- Issue date Aug 19, 2014
- Seagate Technology LLC
- Kaizhong Gao
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making a multi-channel time based servo tape media
- Patent number 8,542,457
- Issue date Sep 24, 2013
- Advanced Research Corporation
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Grant
Multichannel time based servo tape media
- Patent number 8,437,103
- Issue date May 7, 2013
- Advanced Research Corporation
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making a multi-channel time based servo tape media
- Patent number 8,254,052
- Issue date Aug 28, 2012
- Advanced Research Corporation
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making a multi-channel time based servo tape media
- Patent number 7,948,705
- Issue date May 24, 2011
- Advanced Research Corporation
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making a multi-channel time based servo tape media
- Patent number 7,525,761
- Issue date Apr 28, 2009
- Advanced Research Corporation
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Grant
Memory cell and programmable logic having ferromagnetic structures...
- Patent number 7,379,321
- Issue date May 27, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Dafine Ravelosona
- G11 - INFORMATION STORAGE
Information Patent Grant
Low inductance, ferrite sub-gap substrate structure for surface fil...
- Patent number 6,894,869
- Issue date May 17, 2005
- Advanced Research Corporation
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Grant
Hybrid diffuser for minimizing thermal pole tip protrusion and read...
- Patent number 6,859,343
- Issue date Feb 22, 2005
- Western Digital, Inc.
- Arshad Ahmed Alfoqaha
- G11 - INFORMATION STORAGE
Information Patent Grant
Glass composition, sealing glass for magnetic head and magnetic hea...
- Patent number 6,778,355
- Issue date Aug 17, 2004
- Matsushita Electric Industrial Co., Ltd.
- Shinya Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method of a side core type magnetic head slider
- Patent number 6,553,648
- Issue date Apr 29, 2003
- Minebea Co., Ltd.
- Naomi Kaeriyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Low inductance, ferrite sub-gap substrate structure for surface fil...
- Patent number 6,496,328
- Issue date Dec 17, 2002
- Advanced Research Corporation
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with (411) plane single crystal ferrite medium facing...
- Patent number 6,222,701
- Issue date Apr 24, 2001
- Sony Corporation
- Takashi Tamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having a core portion of polycrystalline MnZn ferrofe...
- Patent number 6,088,198
- Issue date Jul 11, 2000
- U.S. Philips Corporation
- Mark T. Johnson
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having recording medium facing surfaces with tilted c...
- Patent number 6,016,243
- Issue date Jan 18, 2000
- Sony Corporation
- Yukari Nihei
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having a C-type core and an I-type core
- Patent number 5,949,626
- Issue date Sep 7, 1999
- Mitsumi Electric Company, Ltd.
- Masashi Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,945,227
- Issue date Aug 31, 1999
- Alps Electric Co., Ltd.
- Hiroshi Yamagami
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording and/or reproducing device with a magnetic head having an...
- Patent number 5,933,300
- Issue date Aug 3, 1999
- U.S. Philips Corporation
- Ulrich Traxlmayr
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,875,081
- Issue date Feb 23, 1999
- Sony Corporation
- Atsushi Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method for magnetic head
- Patent number 5,867,887
- Issue date Feb 9, 1999
- Sony Corporation
- Seiji Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,856,899
- Issue date Jan 5, 1999
- Alps Electric Co., Ltd.
- Kinya Aoyagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,852,536
- Issue date Dec 22, 1998
- Sony Corporation
- Tohru Matsunaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,475,551
- Issue date Dec 12, 1995
- Sony Corporation
- Junichi Honda
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20230178102
- Publication date Jun 8, 2023
- Kabushiki Kaisha Toshiba
- Yuji NAKAGAWA
- 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
Spin Transfer Torque Oscillator (STO) with Spin Torque Injection to...
- Publication number 20210056987
- Publication date Feb 25, 2021
- HEADWAY TECHNOLOGIES, INC.
- Yan Wu
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE
- Publication number 20200294537
- Publication date Sep 17, 2020
- Kabushiki Kaisha Toshiba
- Tazumi NAGASAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING AND REPRODUCING DEVICE
- Publication number 20200075045
- Publication date Mar 5, 2020
- Kabushiki Kaisha Toshiba
- Naoyuki NARITA
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF MAKING A MULTI-CHANNEL TIME BASED SERVO TAPE MEDIA
- Publication number 20140085751
- Publication date Mar 27, 2014
- Advanced Research Corporation
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Recording Head Having a Pole Tip Shield
- Publication number 20140063657
- Publication date Mar 6, 2014
- SEAGATE TECHNOLOGY LLC
- Kaizhong Gao
- G11 - INFORMATION STORAGE
Information Patent Application
Low inductance, ferrite sub-gap substrate structure for surface fil...
- Publication number 20130242427
- Publication date Sep 19, 2013
- Advanced Research Corporation
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF MAKING A MULTI-CHANNEL TIME BASED SERVO TAPE MEDIA
- Publication number 20130188272
- Publication date Jul 25, 2013
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF MAKING A MULTI-CHANNEL TIME BASED SERVO TAPE MEDIA
- Publication number 20110286126
- Publication date Nov 24, 2011
- ADVANCED RESEARCH CORPORATION
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC WRITE HEAD DESIGN USING PERMANENT MAGNETS AND EXCHANGE SPR...
- Publication number 20110116195
- Publication date May 19, 2011
- Seagate Technology LLC
- Alexandru Cazacu
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF MAKING A MULTI-CHANNEL TIME BASED SERVO TAPE MEDIA
- Publication number 20100002335
- Publication date Jan 7, 2010
- MATTHEW P. DUGAS
- G11 - INFORMATION STORAGE
Information Patent Application
MULTICHANNEL TIME BASED SERVO TAPE MEDIA
- Publication number 20090262452
- Publication date Oct 22, 2009
- MATTHEW P. DUGAS
- G11 - INFORMATION STORAGE
Information Patent Application
LOW INDUCTANCE, FERRITE SUB-GAP SUBSTRATE STRUCTURE FOR SURFACE FIL...
- Publication number 20080024913
- Publication date Jan 31, 2008
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Application
Memory cell and programmable logic having ferromagnetic structures...
- Publication number 20060176620
- Publication date Aug 10, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Dafine Ravelosona
- G11 - INFORMATION STORAGE
Information Patent Application
Low inductance, ferrite sub-gap substrate structure for surface fil...
- Publication number 20050275968
- Publication date Dec 15, 2005
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Application
Glass composition, sealing glass for magnetic head and magnetic head
- Publication number 20030048580
- Publication date Mar 13, 2003
- Shinya Hasegawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Low inductance, ferrite sub-gap substrate structure for surface fil...
- Publication number 20020171974
- Publication date Nov 21, 2002
- Matthew P. Dugas
- G11 - INFORMATION STORAGE
Information Patent Application
MANUFACTURING METHOD OF A SIDE CORE TYPE MAGNETIC HEAD SLIDER
- Publication number 20010001894
- Publication date May 31, 2001
- NAOMI KAERIYAMA
- G11 - INFORMATION STORAGE

the pole pieces being ferrite or other magnetic particles

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Magnetic head and magnetic recording device

Magnetic head and magnetic recording device having magnetic layers...

Magnetic head and magnetic recording device

Magnetic head and magnetic recording device having magnetic layers...

Spin transfer torque oscillator (STO) with spin torque injection to...

Magnetic head with stacked body and insulating portion arrangement...

Spin transfer torque (STT) device with template layer for Heusler a...

Magnetic recording head having a pole tip shield and a pole-shield...

Method of making a multi-channel time based servo tape media

Multichannel time based servo tape media

Method of making a multi-channel time based servo tape media

Method of making a multi-channel time based servo tape media

Method of making a multi-channel time based servo tape media

Memory cell and programmable logic having ferromagnetic structures...

Low inductance, ferrite sub-gap substrate structure for surface fil...

Hybrid diffuser for minimizing thermal pole tip protrusion and read...

Glass composition, sealing glass for magnetic head and magnetic hea...

Manufacturing method of a side core type magnetic head slider

Low inductance, ferrite sub-gap substrate structure for surface fil...

Magnetic head with (411) plane single crystal ferrite medium facing...

Magnetic head having a core portion of polycrystalline MnZn ferrofe...

Magnetic head having recording medium facing surfaces with tilted c...

Magnetic head having a C-type core and an I-type core

Magnetic head

Recording and/or reproducing device with a magnetic head having an...

Magnetic head

Manufacturing method for magnetic head

Magnetic head

Magnetic head

Magnetic head

Patents Applicationslast 30 patents

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

Spin Transfer Torque Oscillator (STO) with Spin Torque Injection to...

MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING AND REPRODUCING DEVICE

METHOD OF MAKING A MULTI-CHANNEL TIME BASED SERVO TAPE MEDIA

Magnetic Recording Head Having a Pole Tip Shield

Low inductance, ferrite sub-gap substrate structure for surface fil...

METHOD OF MAKING A MULTI-CHANNEL TIME BASED SERVO TAPE MEDIA

METHOD OF MAKING A MULTI-CHANNEL TIME BASED SERVO TAPE MEDIA

MAGNETIC WRITE HEAD DESIGN USING PERMANENT MAGNETS AND EXCHANGE SPR...

METHOD OF MAKING A MULTI-CHANNEL TIME BASED SERVO TAPE MEDIA

MULTICHANNEL TIME BASED SERVO TAPE MEDIA

LOW INDUCTANCE, FERRITE SUB-GAP SUBSTRATE STRUCTURE FOR SURFACE FIL...

Memory cell and programmable logic having ferromagnetic structures...

Low inductance, ferrite sub-gap substrate structure for surface fil...

Glass composition, sealing glass for magnetic head and magnetic head

Low inductance, ferrite sub-gap substrate structure for surface fil...

MANUFACTURING METHOD OF A SIDE CORE TYPE MAGNETIC HEAD SLIDER