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G11B5/70657

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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

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G11B5/70657with a skin

Industries

Patents Grantslast 30 patents

Information Patent Grant
Ferromagnetic powder, and coating material and magnetic recording m...
- Patent number 7,763,352
- Issue date Jul 27, 2010
- Dowa Electronics Materials Co., Ltd.
- Yoshiyuki Shoji
- G11 - INFORMATION STORAGE
Information Patent Grant
Iron oxide magnetic powder and magnetic recording medium using the...
- Patent number 5,989,703
- Issue date Nov 23, 1999
- Sony Corporation
- Makoto Inoue
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Preparation of acicular cobalt-containing magnetic iron oxide
- Patent number 5,484,628
- Issue date Jan 16, 1996
- BASF Magnetics GmbH
- Ekkehard Schwab
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for preparing barium-ferrite-coated .gamma.FE.sub.2 O.sub.3...
- Patent number 5,366,761
- Issue date Nov 22, 1994
- National Science Council
- Tsung-Shune Chin
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Magnetic particles
- Patent number 5,217,804
- Issue date Jun 8, 1993
- Eastman Kodak Company
- Robert O. James
- G11 - INFORMATION STORAGE
Information Patent Grant
Acicular magnetic iron oxide particles and magnetic recording media...
- Patent number 5,120,604
- Issue date Jun 9, 1992
- Toda Kogyo Corporation
- Tatsuya Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Plate-like composite ferrite particles for magnetic recording and p...
- Patent number 5,075,169
- Issue date Dec 24, 1991
- Toda Kogyo Corp.
- Norimichi Nagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for preparing ferromagnetic iron oxide particles
- Patent number 4,876,022
- Issue date Oct 24, 1989
- Fuji Photo Film Co., Ltd.
- Nobuo Yamazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Inorganic powders with improved dispersibility
- Patent number 4,810,524
- Issue date Mar 7, 1989
- TDK Corporation
- Masatoshi Nakayama
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Magnetic recording medium
- Patent number 4,803,132
- Issue date Feb 7, 1989
- Hitachi Maxell, Ltd.
- Mikio Kishimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Preparation of cobalt-containing, acicular, magnetic iron oxides
- Patent number 4,770,903
- Issue date Sep 13, 1988
- BASF Aktiengesellschaft
- Ekkehard Schwab
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,713,278
- Issue date Dec 15, 1987
- TDK Corporation
- Kuniichi Yoda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for preparing ferromagnetic iron oxide particles
- Patent number 4,713,261
- Issue date Dec 15, 1987
- Fuji Photo Film Co., Ltd.
- Kouichi Masaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic iron oxide pigment and recording media
- Patent number 4,683,167
- Issue date Jul 28, 1987
- Ampex Corporation
- Lawrence M. Scott
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic powders with improved dispersibility
- Patent number 4,619,861
- Issue date Oct 28, 1986
- TDK Corporation
- Masatoshi Nakayama
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for producing magnetic powder and product
- Patent number 4,539,261
- Issue date Sep 3, 1985
- Ishihara Sangyo Kaisha, Ltd.
- Kazuo Nakata
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Acicular ferrimagnetic iron oxide and its preparation
- Patent number 4,457,982
- Issue date Jul 3, 1984
- BASF Aktiengesellschaft
- Peter Rudolf
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Coating iron oxide particles for magnetic recording
- Patent number 4,400,432
- Issue date Aug 23, 1983
- Bayer Aktiengesellschaft
- Gunter Buxbaum
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing a magnetic recording element
- Patent number 4,384,012
- Issue date May 17, 1983
- U.S. Philips Corporation
- Hendrikus F. Huisman
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing magnetic powder having high coercive force
- Patent number 4,363,831
- Issue date Dec 14, 1982
- TDK Electronics Co., Ltd.
- Shinji Umeki
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of preparing a FeOOH pigment
- Patent number 4,349,385
- Issue date Sep 14, 1982
- U.S. Philips Corporation
- Hendrikus F. Huisman
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for producing magnetic particles for magnetic recording medium
- Patent number 4,348,430
- Issue date Sep 7, 1982
- TDK Electronics Company, Ltd.
- Yasumichi Tokuoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Coating iron oxide particles for magnetic recording
- Patent number 4,323,596
- Issue date Apr 6, 1982
- Bayer Aktiengesellschaft
- Gunter Buxbaum
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic powder for magnetic recording medium
- Patent number 4,321,303
- Issue date Mar 23, 1982
- TDK Electronics Co., Ltd.
- Haruyuki Morita
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacture of acicular cobalt-containing magnetic iron oxide
- Patent number 4,296,149
- Issue date Oct 20, 1981
- BASF Aktiengesellschaft
- Peter Rudolf
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacture of acicular cobalt-containing magnetic iron oxide
- Patent number 4,287,233
- Issue date Sep 1, 1981
- BASF Aktiengesellschaft
- Peter Rudolf
- G11 - INFORMATION STORAGE
Information Patent Grant
Particles for magnetic recording
- Patent number 4,268,540
- Issue date May 19, 1981
- Ampex Corporation
- Lawrence M. Scott
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacture of acicular magnetic iron oxide
- Patent number 4,259,368
- Issue date Mar 31, 1981
- BASF Aktiengesellschaft
- Peter Rudolf
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing acicular goethite
- Patent number 4,255,409
- Issue date Mar 10, 1981
- TDK Electronics Company Limited
- Toshihiro Hamabata
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Improving the magnetic properties of gamma-iron (III) oxide
- Patent number 4,212,903
- Issue date Jul 15, 1980
- BASF Aktiengesellschaft
- Georg Schnell
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Ferromagnetic powder, and coating material and magnetic recording m...
- Publication number 20070059557
- Publication date Mar 15, 2007
- Yoshiyuki Shoji
- G11 - INFORMATION STORAGE

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Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Ferromagnetic powder, and coating material and magnetic recording m...

Iron oxide magnetic powder and magnetic recording medium using the...

Preparation of acicular cobalt-containing magnetic iron oxide

Method for preparing barium-ferrite-coated .gamma.FE.sub.2 O.sub.3...

Magnetic particles

Acicular magnetic iron oxide particles and magnetic recording media...

Plate-like composite ferrite particles for magnetic recording and p...

Method for preparing ferromagnetic iron oxide particles

Inorganic powders with improved dispersibility

Magnetic recording medium

Preparation of cobalt-containing, acicular, magnetic iron oxides

Magnetic recording medium

Method for preparing ferromagnetic iron oxide particles

Magnetic iron oxide pigment and recording media

Magnetic powders with improved dispersibility

Process for producing magnetic powder and product

Acicular ferrimagnetic iron oxide and its preparation

Coating iron oxide particles for magnetic recording

Method of manufacturing a magnetic recording element

Process for producing magnetic powder having high coercive force

Method of preparing a FeOOH pigment

Process for producing magnetic particles for magnetic recording medium

Coating iron oxide particles for magnetic recording

Magnetic powder for magnetic recording medium

Manufacture of acicular cobalt-containing magnetic iron oxide

Manufacture of acicular cobalt-containing magnetic iron oxide

Particles for magnetic recording

Manufacture of acicular magnetic iron oxide

Process for producing acicular goethite

Improving the magnetic properties of gamma-iron (III) oxide

Patents Applicationslast 30 patents

Ferromagnetic powder, and coating material and magnetic recording m...