where the dimensions of the effective gap are controlled

Industry

CPC
G11B5/2452

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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

G11B5/2452where the dimensions of the effective gap are controlled

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic head with rectangular-shaped planar spiral coil and leadin...
- Patent number 7,457,079
- Issue date Nov 25, 2008
- Sony Corporation
- Kazushi Ogawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-resistance effect element with magnetism sensitive region c...
- Patent number 7,075,755
- Issue date Jul 11, 2006
- Kabushiki Kaisha Toshiba
- Shigeru Haneda
- G11 - INFORMATION STORAGE
Information Patent Grant
Write head having first pole piece with frequency dependent variabl...
- Patent number 6,826,014
- Issue date Nov 30, 2004
- International Business Machines Corporation
- Quan-chiu Harry Lam
- G11 - INFORMATION STORAGE
Information Patent Grant
First pole piece with frequency dependent variable effective throat...
- Patent number 6,785,098
- Issue date Aug 31, 2004
- International Business Machines Corporation
- Wenchein Hsiao
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head, magnetic recording and reproducing apparatus, method...
- Patent number 6,728,080
- Issue date Apr 27, 2004
- Hitachi, Ltd.
- Kenchi Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head, magnetic recording and reproducing apparatus, method...
- Patent number 6,690,526
- Issue date Feb 10, 2004
- Hitachi, Ltd.
- Kenchi Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording system providing a magnetic head having opposite...
- Patent number 5,933,299
- Issue date Aug 3, 1999
- Kabushiki Kaisha Toshiba
- Tsutomu Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Two-gap magnetic read/write head
- Patent number 5,729,413
- Issue date Mar 17, 1998
- Ampex Corporation
- Beverley R. Gooch
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording system providing a magnetic head having opposite...
- Patent number 5,659,446
- Issue date Aug 19, 1997
- Kabushiki Kaisha Toshiba
- Tsutomu Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording system providing a magnetic head having opposite...
- Patent number 5,396,391
- Issue date Mar 7, 1995
- Kabushiki Kaisha Toshiba
- Tsutomu Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic read/write head having a reduced thickness closure core
- Patent number 5,345,354
- Issue date Sep 6, 1994
- TDK Corporation
- Tomio Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Magnetic read/write having a reduced thickness closure core
- Patent number 5,229,904
- Issue date Jul 20, 1993
- TDK Corporation
- Tomio Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Scanning transducer having transverse information and control flux...
- Patent number 5,227,939
- Issue date Jul 13, 1993
- Ampex Corporation
- Beverley R. Gooch
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic control of a transducer signal transfer zone to effect tra...
- Patent number 5,189,572
- Issue date Feb 23, 1993
- Ampex Corporation
- Beverley R. Gooch
- G11 - INFORMATION STORAGE
Information Patent Grant
Adaptive-gap magnetic recording and reading head
- Patent number 5,173,821
- Issue date Dec 22, 1992
- Unisys Corporation
- William T. Maloney
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for transferring information between two magne...
- Patent number 5,153,796
- Issue date Oct 6, 1992
- Ampex Corporation
- Beverley R. Gooch
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic saturation controlled scanning magnetic transducer
- Patent number 5,119,255
- Issue date Jun 2, 1992
- Ampex Corporation
- Beverley R. Gooch
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetostrictive head with d.c. bias magnetic field
- Patent number 5,117,320
- Issue date May 26, 1992
- International Business Machines Corporation
- Kenji Ogasawara
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head with wide recording area and narrow reprodu...
- Patent number 5,097,372
- Issue date Mar 17, 1992
- Matsushita Electric Industrial Co., Ltd.
- Toshio Fukazawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic read/write head having a magnetic short circuit
- Patent number 5,057,957
- Issue date Oct 15, 1991
- TDK Corporation
- Tomio Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Magnetic head for high density recording
- Patent number 5,029,032
- Issue date Jul 2, 1991
- TDK Corporation
- Taiki Yamada
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin-film magnetic head device for recording and reproducing
- Patent number 5,025,342
- Issue date Jun 18, 1991
- Matsushita Electric Industrial Co., Ltd.
- Yuji Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head
- Patent number 5,014,149
- Issue date May 7, 1991
- Alps Electric Co., Ltd.
- Atsushi Ibaraki
- G11 - INFORMATION STORAGE
Information Patent Grant
Wide-write, narrow-read, single-gap magnetic head
- Patent number 5,012,375
- Issue date Apr 30, 1991
- Mitsubishi Denki K.K.
- Masaru Nishimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic transducer head structure with reduced leakage between cor...
- Patent number 4,954,921
- Issue date Sep 4, 1990
- Irwin Magnetic Systems, Inc.
- Michael L. Bolt
- G11 - INFORMATION STORAGE
Information Patent Grant
Transducer head core structure with recessed magnetic closures
- Patent number 4,849,841
- Issue date Jul 18, 1989
- Irwin Magnetic Systems, Inc.
- Edmund L. Sokolik
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic transducer head structure
- Patent number 4,819,107
- Issue date Apr 4, 1989
- Irwin Magnetic Systems, Inc.
- Michael L. Bolt
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for recording and reproduction
- Patent number 4,646,184
- Issue date Feb 24, 1987
- Ye Data Inc.
- Tadahiko Goto
- G11 - INFORMATION STORAGE
Information Patent Grant
Integrated magnetic transducer
- Patent number 4,422,118
- Issue date Dec 20, 1983
- Compagnie Internationale Pour l'Informatique
- Michel Helle
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for recording and reading magnetic data with variable...
- Patent number 4,405,959
- Issue date Sep 20, 1983
- L.C.C.-C.I.C.E. Compagnie Europeenne de Composants Electroniques
- Jacques Chabrolle
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic head assembly and magnetic tape drive unit and magnetic di...
- Publication number 20040070871
- Publication date Apr 15, 2004
- Kazushi Ogawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-resistance effect element
- Publication number 20040061980
- Publication date Apr 1, 2004
- Kabushiki Kaisha Toshiba
- Shigeru Haneda
- G01 - MEASURING TESTING
Information Patent Application
First pole piece with frequency dependent variable effective throat...
- Publication number 20030067721
- Publication date Apr 10, 2003
- Wenchein Hsiao
- G11 - INFORMATION STORAGE
Information Patent Application
Write head having first pole piece with frequency dependent variabl...
- Publication number 20030058583
- Publication date Mar 27, 2003
- International Business Machines Corporation
- Quan-Chiu Harry Lam
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head, magnetic recording and reproducing apparatus, method...
- Publication number 20020015251
- Publication date Feb 7, 2002
- Kenchi Ito
- B82 - NANO-TECHNOLOGY
Information Patent Application
Magnetic head, magnetic recording and reproducing apparatus, method...
- Publication number 20020012205
- Publication date Jan 31, 2002
- Kenchi Ito
- B82 - NANO-TECHNOLOGY

where the dimensions of the effective gap are controlled

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Magnetic head with rectangular-shaped planar spiral coil and leadin...

Magneto-resistance effect element with magnetism sensitive region c...

Write head having first pole piece with frequency dependent variabl...

First pole piece with frequency dependent variable effective throat...

Magnetic head, magnetic recording and reproducing apparatus, method...

Magnetic head, magnetic recording and reproducing apparatus, method...

Magnetic recording system providing a magnetic head having opposite...

Two-gap magnetic read/write head

Magnetic recording system providing a magnetic head having opposite...

Magnetic recording system providing a magnetic head having opposite...

Magnetic read/write head having a reduced thickness closure core

Magnetic read/write having a reduced thickness closure core

Scanning transducer having transverse information and control flux...

Magnetic control of a transducer signal transfer zone to effect tra...

Adaptive-gap magnetic recording and reading head

Method and apparatus for transferring information between two magne...

Magnetic saturation controlled scanning magnetic transducer

Magnetostrictive head with d.c. bias magnetic field

Thin film magnetic head with wide recording area and narrow reprodu...

Magnetic read/write head having a magnetic short circuit

Magnetic head for high density recording

Thin-film magnetic head device for recording and reproducing

Thin film magnetic head

Wide-write, narrow-read, single-gap magnetic head

Magnetic transducer head structure with reduced leakage between cor...

Transducer head core structure with recessed magnetic closures

Magnetic transducer head structure

Magnetic head for recording and reproduction

Integrated magnetic transducer

Magnetic head for recording and reading magnetic data with variable...

Patents Applicationslast 30 patents

Magnetic head assembly and magnetic tape drive unit and magnetic di...

Magneto-resistance effect element

First pole piece with frequency dependent variable effective throat...

Write head having first pole piece with frequency dependent variabl...

Magnetic head, magnetic recording and reproducing apparatus, method...

Magnetic head, magnetic recording and reproducing apparatus, method...