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G11B5/193
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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
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G11B5/193
the pole pieces being ferrite or other magnetic particles
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Patents Grants
last 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 Applications
last 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