by non-optical methods

Industry

CPC
G11B7/0914

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Parent Industries

GPHYSICS G11Information storage G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER G11B7/00Recording or reproducing by optical means

Current Industry

G11B7/0914by non-optical methods

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for position control of optical system, and st...
- Patent number 6,608,801
- Issue date Aug 19, 2003
- Sony Corporation
- Isao Ichimura
- G11 - INFORMATION STORAGE
Information Patent Grant
BEAM IRRADIATION APPARATUS, OPTICAL APPARATUS HAVING BEAM IRRADIATI...
- Patent number 6,442,110
- Issue date Aug 27, 2002
- Sony Corporation
- Masanobu Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Near-field optical recording/reading apparatus
- Patent number 6,438,092
- Issue date Aug 20, 2002
- Minolta Co., Ltd.
- Takayuki Hoshino
- G11 - INFORMATION STORAGE
Information Patent Grant
Position controller and position control method of optical system a...
- Patent number 6,404,710
- Issue date Jun 11, 2002
- Sony Corporation
- Isao Ichimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Mechanism for controlling spacing between optical head and storage...
- Patent number 6,396,783
- Issue date May 28, 2002
- TeraStor Corporation
- Bernard W. Bell
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical head and drive device for optical recording medium
- Patent number 6,307,689
- Issue date Oct 23, 2001
- Sony Corporation
- Isao Ichimura
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Apparatus for reading and/or writing information from/on a recordin...
- Patent number 6,262,953
- Issue date Jul 17, 2001
- U.S. Philips Corporation
- Josephus A. H. M. Kahlman
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical tape cartridge having improved tape movement mechanism
- Patent number 5,587,993
- Issue date Dec 24, 1996
- Discovision Associates
- David P. Gregg
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium
- Patent number 5,453,884
- Issue date Sep 26, 1995
- Sharp Kabushiki Kaisha
- Kenji Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for measuring the clearance of recording transducer, and...
- Patent number 5,153,785
- Issue date Oct 6, 1992
- Hitachi, Ltd.
- Fumitaka Muranushi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for preventing head crashes in a disk system
- Patent number 4,954,904
- Issue date Sep 4, 1990
- Goor Associates, Inc.
- Dan Goor
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for maintaining constant flying height via mag...
- Patent number 4,814,907
- Issue date Mar 21, 1989
- Goor Associates, Inc.
- Dan Goor
- G11 - INFORMATION STORAGE
Information Patent Grant
Opto-electronic apparatus for inscribing and/or reading recording t...
- Patent number 4,561,081
- Issue date Dec 24, 1985
- U.S. Philips Corporation
- Peter J. M. Janssen
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Compensation apparatus for a servo system with periodic command sig...
- Patent number 4,300,226
- Issue date Nov 10, 1981
- RCA Corporation
- William E. Barnette
- G11 - INFORMATION STORAGE
Information Patent Grant
Capacitance distance sensor apparatus for video disc player/recorder
- Patent number 4,183,060
- Issue date Jan 8, 1980
- RCA Corporation
- William E. Barnette
- G11 - INFORMATION STORAGE
Information Patent Grant
Automatic focusing apparatus
- Patent number 4,153,341
- Issue date May 8, 1979
- Hitachi, Ltd.
- Yoshio Kawamura
- G02 - OPTICS
Information Patent Grant
Focus control system with movable mirror
- Patent number 4,051,529
- Issue date Sep 27, 1977
- Sony Corporation
- Senri Miyaoka
- G11 - INFORMATION STORAGE
Information Patent Grant
3873763
- Patent number 3,873,763
- Issue date Mar 25, 1975
- G11 - INFORMATION STORAGE
Information Patent Grant
3861786
- Patent number 3,861,786
- Issue date Jan 21, 1975
- G11 - INFORMATION STORAGE
Information Patent Grant
3825323
- Patent number 3,825,323
- Issue date Jul 23, 1974
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Focus-detecting emitter for a data storage device
- Publication number 20040213098
- Publication date Oct 28, 2004
- Daniel R. Marshall
- G11 - INFORMATION STORAGE
Information Patent Application
Apparatus and method for position control of optical system, and st...
- Publication number 20010021145
- Publication date Sep 13, 2001
- Isao Ichimura
- B82 - NANO-TECHNOLOGY

by non-optical methods

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Apparatus and method for position control of optical system, and st...

BEAM IRRADIATION APPARATUS, OPTICAL APPARATUS HAVING BEAM IRRADIATI...

Near-field optical recording/reading apparatus

Position controller and position control method of optical system a...

Mechanism for controlling spacing between optical head and storage...

Optical head and drive device for optical recording medium

Apparatus for reading and/or writing information from/on a recordin...

Optical tape cartridge having improved tape movement mechanism

Magneto-optical recording medium

Apparatus for measuring the clearance of recording transducer, and...

Method and apparatus for preventing head crashes in a disk system

Method and apparatus for maintaining constant flying height via mag...

Opto-electronic apparatus for inscribing and/or reading recording t...

Compensation apparatus for a servo system with periodic command sig...

Capacitance distance sensor apparatus for video disc player/recorder

Automatic focusing apparatus

Focus control system with movable mirror

3873763

3861786

3825323

Patents Applicationslast 30 patents

Focus-detecting emitter for a data storage device

Apparatus and method for position control of optical system, and st...