Non-stoechiometric ferro-ferrioxydes

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CPC
G11B5/70694

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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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G11B5/70694Non-stoechiometric ferro-ferrioxydes

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Processes for producing hydrated iron oxide and ferromagnetic iron...
- Patent number 5,911,905
- Issue date Jun 15, 1999
- Titan Kogyo Kabushiki Kaisha
- Hideaki Tokunaga
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Magnetic iron oxide particles and method of producing the same
- Patent number 5,582,914
- Issue date Dec 10, 1996
- Toda Kogyo Corp.
- Atsushi Takedoi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,496,614
- Issue date Mar 5, 1996
- Konica Corporation
- Yasushi Nakano
- G11 - INFORMATION STORAGE
Information Patent Grant
Low coercive iron oxide pigments and a process for their preparation
- Patent number 5,480,570
- Issue date Jan 2, 1996
- Toda Kogyo Corp.
- Karl-Heinz van Bonn
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Superparamagnetic fine particles of iron oxide and magnetic recordi...
- Patent number 5,368,933
- Issue date Nov 29, 1994
- Toda Kogyo Corp.
- Koso Aoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic iron oxide particles and method of producing same
- Patent number 5,314,750
- Issue date May 24, 1994
- Toda Kogyo Corp.
- Atsushi Takedoi
- G11 - INFORMATION STORAGE
Information Patent Grant
Superparamagnetic fine particles of iron oxide and magnetic recordi...
- Patent number 5,236,783
- Issue date Aug 17, 1993
- Toda Kogyo Corp.
- Koso Aoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for the preparation of isometric magnetic iron oxide
- Patent number 5,202,043
- Issue date Apr 13, 1993
- Bayer Aktiengesellschaft
- Jurgen Wiese
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Acicular cobalt-modified iron oxides and their preparation
- Patent number 5,183,709
- Issue date Feb 2, 1993
- BASF Aktiengesellschaft
- Ekkehard Schwab
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for the preparation of magnetic iron oxides and the pigment...
- Patent number 5,116,419
- Issue date May 26, 1992
- Hendrik Kathrein
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Highly-coercive isometric iron oxides, a process for the production...
- Patent number 5,002,751
- Issue date Mar 26, 1991
- Bayer Aktiengesellschaft
- Jurgen Wiese
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Cobalt-containing iron oxide magnetic particles and method for the...
- Patent number 4,857,417
- Issue date Aug 15, 1989
- Hitachi Maxell, Ltd.
- Susumu Kitaoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Highly magnetic iron oxide powder
- Patent number 4,822,509
- Issue date Apr 18, 1989
- Eltech Systems Corporation
- Jeries I. Bishara
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording medium
- Patent number 4,791,021
- Issue date Dec 13, 1988
- Fuji Photo Film Co., Ltd.
- Kunihiko Honda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for preparing cobalt-containing iron oxide magnetic particles
- Patent number 4,741,921
- Issue date May 3, 1988
- Hitachi Maxell, Ltd.
- Susumu Kitaoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Preparation of acicular, ferrimagnetic iron oxides
- Patent number 4,497,723
- Issue date Feb 5, 1985
- BASF Aktiengesellschaft
- Manfred Ohlinger
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording medium
- Patent number 4,465,735
- Issue date Aug 14, 1984
- Hitachi Maxell, Ltd.
- Fumio Togawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Preparation of acicular, ferrimagnetic iron oxides
- Patent number 4,448,761
- Issue date May 15, 1984
- BASF Aktiengesellschaft
- Wilhelm Sarnecki
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Magnetic recording medium
- Patent number 4,302,510
- Issue date Nov 24, 1981
- TDK Electronics Co., Ltd.
- Shinji Umeki
- G11 - INFORMATION STORAGE
Information Patent Grant
Production of cobalt-doped ferrimagnetic iron oxides
- Patent number 4,297,395
- Issue date Oct 27, 1981
- Bayer Aktiengesellschaft
- Gunter Buxbaum
- G11 - INFORMATION STORAGE
Information Patent Grant
Cobalt modified magnetic iron oxide
- Patent number 4,276,183
- Issue date Jun 30, 1981
- Pfizer Inc.
- David M. Wilson
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing cobalt-containing ferromagnetic iron oxide po...
- Patent number 4,267,207
- Issue date May 12, 1981
- Fuji Photo Film Co., Ltd.
- Koji Sasazawa
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Cobalt-doped acicular hyper-magnetite particles
- Patent number 4,226,909
- Issue date Oct 7, 1980
- Minnesota Mining and Manufacturing Company
- Thomas M. Kanten
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Manufacture of acicular ferrimagnetic iron oxides
- Patent number 4,221,776
- Issue date Sep 9, 1980
- BASF Aktiengesellschaft
- Horst Autzen
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for producing nonstoichiometric ferroso-ferric oxides
- Patent number 4,209,412
- Issue date Jun 24, 1980
- Hercules Incorporated
- Guy C. Marcot
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacture of acicular cobalt-modified magnetic iron oxide
- Patent number 4,188,302
- Issue date Feb 12, 1980
- BASF Aktiengesellschaft
- Hans-Juergen Becker
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Cobalt-doped acicular hyper-magnetite particles
- Patent number 4,137,342
- Issue date Jan 30, 1979
- Minnesota Mining and Manufacturing Company
- Thomas M. Kanten
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing ferromagnetic iron oxide
- Patent number 4,108,787
- Issue date Aug 22, 1978
- Fuji Photo Film Co., Ltd.
- Kouichi Masaki
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for producing cobalt- and iron-containing ferromagnetic pow...
- Patent number 4,066,564
- Issue date Jan 3, 1978
- Fuji Photo Film Co., Ltd.
- Koji Sasazawa
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for stabilization of ferromagnetic material and magnetic re...
- Patent number 4,015,030
- Issue date Mar 29, 1977
- Fuji Photo Film Co., Ltd.
- Koji Sasazawa
- G11 - INFORMATION STORAGE

Non-stoechiometric ferro-ferrioxydes

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Processes for producing hydrated iron oxide and ferromagnetic iron...

Magnetic iron oxide particles and method of producing the same

Magnetic recording medium

Low coercive iron oxide pigments and a process for their preparation

Superparamagnetic fine particles of iron oxide and magnetic recordi...

Magnetic iron oxide particles and method of producing same

Superparamagnetic fine particles of iron oxide and magnetic recordi...

Process for the preparation of isometric magnetic iron oxide

Acicular cobalt-modified iron oxides and their preparation

Process for the preparation of magnetic iron oxides and the pigment...

Highly-coercive isometric iron oxides, a process for the production...

Cobalt-containing iron oxide magnetic particles and method for the...

Highly magnetic iron oxide powder

Magnetic recording medium

Method for preparing cobalt-containing iron oxide magnetic particles

Preparation of acicular, ferrimagnetic iron oxides

Magnetic recording medium

Preparation of acicular, ferrimagnetic iron oxides

Magnetic recording medium

Production of cobalt-doped ferrimagnetic iron oxides

Cobalt modified magnetic iron oxide

Process for producing cobalt-containing ferromagnetic iron oxide po...

Cobalt-doped acicular hyper-magnetite particles

Manufacture of acicular ferrimagnetic iron oxides

Process for producing nonstoichiometric ferroso-ferric oxides

Manufacture of acicular cobalt-modified magnetic iron oxide

Cobalt-doped acicular hyper-magnetite particles

Process for producing ferromagnetic iron oxide

Process for producing cobalt- and iron-containing ferromagnetic pow...

Process for stabilization of ferromagnetic material and magnetic re...

Patents Applicationslast 30 patents