by modulating only the magnetic field at the transducer

Industry

CPC
G11B11/10508

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Parent Industries

GPHYSICS G11Information storage G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER G11B11/00Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00 Record carriers therefor

Current Industry

G11B11/10508by modulating only the magnetic field at the transducer

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Optical recording medium and disc cartridge
- Patent number 7,454,771
- Issue date Nov 18, 2008
- Sony Corporation
- Naohiro Netsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Enhanced data storage and retrieval devices and systems and methods...
- Patent number 7,408,729
- Issue date Aug 5, 2008
- GR Intellectual Reserve, LLC
- Juliana H. J. Brooks
- G11 - INFORMATION STORAGE
Information Patent Grant
Stray field equalization for improved domain expansion reading
- Patent number 7,385,883
- Issue date Jun 10, 2008
- Koninklijke Philips Electronics N.V.
- Coen Adrianus Verschuren
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk apparatus and method for recording data by utilizing a...
- Patent number 7,385,882
- Issue date Jun 10, 2008
- Sony Corporation
- Masatoshi Nishino
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, magnetic recording device, and method of...
- Patent number 7,357,996
- Issue date Apr 15, 2008
- Sharp Kabushiki Kaisha
- Junichi Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Control means and method of controlling a current through a coil
- Patent number 7,352,522
- Issue date Apr 1, 2008
- Koninklijke Philips Electronics N.V.
- Rudolf Johan Maria Vullers
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin-film coil, coil driving circuit and magnetic head
- Patent number 7,324,411
- Issue date Jan 29, 2008
- Fujitsu Limited
- Tsuyoshi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and disc cartridge
- Patent number 7,305,689
- Issue date Dec 4, 2007
- Sony Corporation
- Naohiro Netsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical disk recording/reproducing device
- Patent number 7,206,262
- Issue date Apr 17, 2007
- Matsushita Electric Industrial Co., Ltd.
- Makoto Takasima
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for recording and reproduction on a magneto-optical recordin...
- Patent number 7,113,453
- Issue date Sep 26, 2006
- Hitachi Maxell, Ltd.
- Katsusuke Shimazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording and reproducing apparatus for recording and reproducing i...
- Patent number 7,110,328
- Issue date Sep 19, 2006
- Sony Corporation
- Minoru Tobita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording for improved domain expansion reading
- Patent number 7,027,365
- Issue date Apr 11, 2006
- Koninklijke Philips Electronics N.V.
- Coen Adrianus Verschuren
- G11 - INFORMATION STORAGE
Information Patent Grant
Domain wall displacement type magneto-optical recording medium and...
- Patent number 6,980,491
- Issue date Dec 27, 2005
- Canon Kabushiki Kaisha
- Tsutomu Shiratori
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for reproducing information data from a magneto-optical stor...
- Patent number 6,944,100
- Issue date Sep 13, 2005
- Sony Corporation
- Tetsuhiro Sakamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk, optical reproduction device, and optical recording de...
- Patent number 6,909,677
- Issue date Jun 21, 2005
- Sharp Kabushiki Kaisha
- Jun Akiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk apparatus and method for recording data by utilizing a...
- Patent number 6,888,781
- Issue date May 3, 2005
- Sony Corporation
- Masatoshi Nishino
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of thermally-assisted data recording and a recording apparatus
- Patent number 6,873,576
- Issue date Mar 29, 2005
- Koninklijke Philips Electronics N.V.
- Hans Willem Van Kesteren
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for driving magnetic head and driving circuit of magneto-opt...
- Patent number 6,856,582
- Issue date Feb 15, 2005
- Fujitsu Limited
- Michio Matsuura
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for recording magnetized mark utilizing magnet...
- Patent number 6,826,129
- Issue date Nov 30, 2004
- Fujitsu Limited
- Michio Matsuura
- G11 - INFORMATION STORAGE
Information Patent Grant
Near-field hybrid magnetic-optical head system
- Patent number 6,807,131
- Issue date Oct 19, 2004
- Research Investment Network, Inc.
- Lambertus Hesselink
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording apparatus using same
- Patent number 6,804,822
- Issue date Oct 12, 2004
- Sharp Kabushiki Kaisha
- Junichi Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Read-only optical recording medium and disc cartridge
- Patent number 6,785,222
- Issue date Aug 31, 2004
- Sony Corporation
- Naohiro Netsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical recording medium and disc cartridge
- Patent number 6,747,943
- Issue date Jun 8, 2004
- Sony Corporation
- Naohiro Netsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical recording medium and optical recording and reproduction app...
- Patent number 6,741,549
- Issue date May 25, 2004
- Sharp Kabushiki Kaisha
- Junji Tominaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording device having optical and magnetic heads...
- Patent number 6,683,824
- Issue date Jan 27, 2004
- Fujitsu Limited
- Hideki Nishimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium having a magnetic flux formed layer
- Patent number 6,678,219
- Issue date Jan 13, 2004
- Sharp Kabushiki Kaisha
- Junji Hirokane
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording apparatus and method including method for...
- Patent number 6,646,968
- Issue date Nov 11, 2003
- Canon Kabushiki Kaisha
- Yasuyuki Miyaoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium comprising four magnetic layers
- Patent number 6,630,252
- Issue date Oct 7, 2003
- Fujitsu Limited
- Toshio Sugimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for recording magnetic domain having an arc sh...
- Patent number 6,614,731
- Issue date Sep 2, 2003
- Canon Kabushiki Kaisha
- Kazuyoshi Ishii
- G11 - INFORMATION STORAGE
Information Patent Grant
Drive circuit for magnetic head and winding configuration of magnet...
- Patent number 6,570,725
- Issue date May 27, 2003
- Fujitsu Limited
- Michio Matsuura
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL RECORDING MEDIUM AND DISC CARTRIDGE
- Publication number 20080098416
- Publication date Apr 24, 2008
- SONY CORPORATION
- Naohiro NETSU
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Control means and method of controlling a current thorugh a coil
- Publication number 20070053132
- Publication date Mar 8, 2007
- Koninklijke Philips Electronics N.V.
- Rudolf Johan Maira Vullers
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information processing apparatus
- Publication number 20060140066
- Publication date Jun 29, 2006
- FUJITSU LIMITED
- Nobuhide Aoyama
- G11 - INFORMATION STORAGE
Information Patent Application
Enhanced data storage and retrieval devices and systems and methods...
- Publication number 20060132952
- Publication date Jun 22, 2006
- Juliana H. J. Brooks
- G11 - INFORMATION STORAGE
Information Patent Application
Thin-film coil, coil driving circuit and magnetic head
- Publication number 20060072385
- Publication date Apr 6, 2006
- FUJITSU LIMITED
- Tsuyoshi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
Stray field equalization for improved domain expansion reading
- Publication number 20050219961
- Publication date Oct 6, 2005
- Koninklijke Philips Electronics N.V.
- Coen Adrianus Verschuren
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk apparatus and method for recording data by utilizing a...
- Publication number 20050135201
- Publication date Jun 23, 2005
- Masatoshi Nishino
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical recording/reproducing apparatus and magneto-optical...
- Publication number 20050068853
- Publication date Mar 31, 2005
- FUJITSU LIMITED
- Akihiro Itakura
- G11 - INFORMATION STORAGE
Information Patent Application
Near-field hybrid magnetic-optical head system
- Publication number 20050030883
- Publication date Feb 10, 2005
- Lambertus Hesselink
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk recording/reproducing device
- Publication number 20040233796
- Publication date Nov 25, 2004
- Makoto Takasima
- G11 - INFORMATION STORAGE
Information Patent Application
Optical recording medium and disc cartridge
- Publication number 20040228263
- Publication date Nov 18, 2004
- Naohiro Netsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
NEAR-FIELD HYBRID MAGNETIC-OPTICAL HEAD SYSTEM
- Publication number 20040202054
- Publication date Oct 14, 2004
- Lambertus Hesselink
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, magnetic recording device, and method of...
- Publication number 20040131893
- Publication date Jul 8, 2004
- Junichi Sato
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical recording/reproducing method, disc recording medium...
- Publication number 20030214886
- Publication date Nov 20, 2003
- SONY CORPORATION
- Tetsuhiro Sakamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Domain wall displacement type magneto-optical recording medium and...
- Publication number 20030203243
- Publication date Oct 30, 2003
- Tsutomu Shiratori
- G11 - INFORMATION STORAGE
Information Patent Application
Recording and reproducing apparatus for recording and reproducing i...
- Publication number 20030185109
- Publication date Oct 2, 2003
- Sony Corporation
- Minoru Tobita
- G11 - INFORMATION STORAGE
Information Patent Application
Method for driving magnetic head and driving circuit of magneto-opt...
- Publication number 20030007427
- Publication date Jan 9, 2003
- FUJITSU LIMITED
- Michio Matsuura
- G11 - INFORMATION STORAGE
Information Patent Application
Optical storage device having optical head and magnetic head
- Publication number 20030002396
- Publication date Jan 2, 2003
- Fujitsu Limited
- Hideki Nishimoto
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical recording for improved domain expansion reading
- Publication number 20020191497
- Publication date Dec 19, 2002
- Koninklijke Philips Electronics N.V.
- Coen Adrianus Verschuren
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic recording apparatus using same
- Publication number 20020186506
- Publication date Dec 12, 2002
- Sharp Kabushiki Kaisha
- Junichi Sato
- G11 - INFORMATION STORAGE
Information Patent Application
Optical recording medium and disc cartridge
- Publication number 20020071383
- Publication date Jun 13, 2002
- Naohiro Netsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical recording medium and disc cartridge
- Publication number 20020071382
- Publication date Jun 13, 2002
- Naohiro Netsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical recording medium and optical recording and reproduction app...
- Publication number 20020067690
- Publication date Jun 6, 2002
- Junji Tominaga
- B82 - NANO-TECHNOLOGY
Information Patent Application
Optical recording medium and disc cartridge
- Publication number 20020060981
- Publication date May 23, 2002
- Naohiro Netsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical recording medium and disc cartridge
- Publication number 20020054566
- Publication date May 9, 2002
- Naohiro Netsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical disk, magneto-optical disk, and disk apparatus therefor and...
- Publication number 20020031055
- Publication date Mar 14, 2002
- Masatoshi Nishino
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording method, apparatus and information reproducing...
- Publication number 20010048644
- Publication date Dec 6, 2001
- Kazuyoshi Ishii
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for recording data on a disk, and recording me...
- Publication number 20010038506
- Publication date Nov 8, 2001
- Masatoshi Nishino
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk apparatus and optical disk
- Publication number 20010036132
- Publication date Nov 1, 2001
- Sony Corporation
- Seiji Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head capable of correctly reproducing signal by domain enl...
- Publication number 20010024342
- Publication date Sep 27, 2001
- SANYO ELECTRIC CO., LTD.
- Kenichiro Mitani
- G11 - INFORMATION STORAGE

by modulating only the magnetic field at the transducer

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Optical recording medium and disc cartridge

Enhanced data storage and retrieval devices and systems and methods...

Stray field equalization for improved domain expansion reading

Optical disk apparatus and method for recording data by utilizing a...

Magnetic recording medium, magnetic recording device, and method of...

Control means and method of controlling a current through a coil

Thin-film coil, coil driving circuit and magnetic head

Optical recording medium and disc cartridge

Optical disk recording/reproducing device

Method for recording and reproduction on a magneto-optical recordin...

Recording and reproducing apparatus for recording and reproducing i...

Magneto-optical recording for improved domain expansion reading

Domain wall displacement type magneto-optical recording medium and...

Method for reproducing information data from a magneto-optical stor...

Optical disk, optical reproduction device, and optical recording de...

Optical disk apparatus and method for recording data by utilizing a...

Method of thermally-assisted data recording and a recording apparatus

Method for driving magnetic head and driving circuit of magneto-opt...

Method and apparatus for recording magnetized mark utilizing magnet...

Near-field hybrid magnetic-optical head system

Magnetic recording medium and magnetic recording apparatus using same

Read-only optical recording medium and disc cartridge

Optical recording medium and disc cartridge

Optical recording medium and optical recording and reproduction app...

Magneto-optical recording device having optical and magnetic heads...

Magneto-optical recording medium having a magnetic flux formed layer

Magneto-optical recording apparatus and method including method for...

Magneto-optical recording medium comprising four magnetic layers

Method and apparatus for recording magnetic domain having an arc sh...

Drive circuit for magnetic head and winding configuration of magnet...

Patents Applicationslast 30 patents

OPTICAL RECORDING MEDIUM AND DISC CARTRIDGE

Control means and method of controlling a current thorugh a coil

Optical information processing apparatus

Enhanced data storage and retrieval devices and systems and methods...

Thin-film coil, coil driving circuit and magnetic head

Stray field equalization for improved domain expansion reading

Optical disk apparatus and method for recording data by utilizing a...

Magneto-optical recording/reproducing apparatus and magneto-optical...

Near-field hybrid magnetic-optical head system

Optical disk recording/reproducing device

Optical recording medium and disc cartridge

NEAR-FIELD HYBRID MAGNETIC-OPTICAL HEAD SYSTEM

Magnetic recording medium, magnetic recording device, and method of...

Magneto-optical recording/reproducing method, disc recording medium...

Domain wall displacement type magneto-optical recording medium and...

Recording and reproducing apparatus for recording and reproducing i...

Method for driving magnetic head and driving circuit of magneto-opt...

Optical storage device having optical head and magnetic head

Magneto-optical recording for improved domain expansion reading

Magnetic recording medium and magnetic recording apparatus using same

Optical recording medium and disc cartridge

Optical recording medium and disc cartridge

Optical recording medium and optical recording and reproduction app...

Optical recording medium and disc cartridge

Optical recording medium and disc cartridge

Optical disk, magneto-optical disk, and disk apparatus therefor and...

Information recording method, apparatus and information reproducing...

Method and apparatus for recording data on a disk, and recording me...

Optical disk apparatus and optical disk

Magnetic head capable of correctly reproducing signal by domain enl...