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G11B5/70647

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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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Patents Grantslast 30 patents

Information Patent Grant
Tape media having synergistic magnetic recording layer and underlayer
- Patent number 11,749,306
- Issue date Sep 5, 2023
- International Business Machines Corporation
- Richard Bradshaw
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording layer formulation for tape media
- Patent number 11,158,339
- Issue date Oct 26, 2021
- International Business Machines Corporation
- Richard Bradshaw
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Tape media having synergistic magnetic recording layer and underlayer
- Patent number 11,152,027
- Issue date Oct 19, 2021
- International Business Machines Corporation
- Richard Bradshaw
- G11 - INFORMATION STORAGE
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
Hydrophobic treatment of pigments
- Patent number 5,922,121
- Issue date Jul 13, 1999
- Videojet Systems International, Inc.
- Wing Sum Vincent Kwan
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Pigment dispersion
- Patent number 5,855,661
- Issue date Jan 5, 1999
- Videojet Systems International, Inc.
- Wing Sum Vincent Kwan
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for preparing magnetic ink and dry pigment particles used th...
- Patent number 5,849,074
- Issue date Dec 15, 1998
- Videojet Systems International, Inc.
- Wing Sum Vincent Kwan
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Coated granular magnetite particles and process for producing the same
- Patent number 5,648,170
- Issue date Jul 15, 1997
- Toda Kogyo Corporation
- Yoji Okano
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Acicular magnetic iron oxide particles and process for producing th...
- Patent number 5,648,014
- Issue date Jul 15, 1997
- Toda Kogyo Corporation
- Mitsuaki Hatatani
- G11 - INFORMATION STORAGE
Information Patent Grant
Granulated particles for magnetic particles for magnetic recording,...
- Patent number 5,531,922
- Issue date Jul 2, 1996
- Toda Kogyo Corporation
- Kenji Okinaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard disk magnetic recording medium comprising magnetic powder and...
- Patent number 5,180,616
- Issue date Jan 19, 1993
- Hitachi, Ltd.
- Hajime Fukke
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Magnetic iron oxide pigments and a process for their preparation
- Patent number 4,933,014
- Issue date Jun 12, 1990
- Bayer Aktiengeselschaft
- Hendrik Kathrein
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic iron oxide pigments and a process for their preparation
- Patent number 4,923,519
- Issue date May 8, 1990
- Bayer Aktiengesellschaft
- Fritz Rodi
- 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 4,789,591
- Issue date Dec 6, 1988
- Konishiroku Photo Industry Co., Ltd.
- Issei Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for the production of iron oxides epitaxially coated with c...
- Patent number 4,686,142
- Issue date Aug 11, 1987
- Bayer Aktiengesellschaft
- Peter Kiemle
- C30 - CRYSTAL GROWTH
Information Patent Grant
Ferromagnetic recording materials
- Patent number 4,657,816
- Issue date Apr 14, 1987
- Memorex Corporation
- Mohammed Siddiq
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Surface treatment method for magnetic particles
- Patent number 4,620,987
- Issue date Nov 4, 1986
- Ricoh Company, Ltd.
- Hiroshi Yamashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic recording medium
- Patent number 4,572,866
- Issue date Feb 25, 1986
- Konishiroku Photo Industry Co., Ltd.
- Issei Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic powder for magnetic recording medium
- Patent number 4,423,114
- Issue date Dec 27, 1983
- TDK Electronics Co., Ltd.
- Hiroto Saguchi
- 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 protecting magnetic particles with chromium oxide
- Patent number 4,382,982
- Issue date May 10, 1983
- ICI Australia Limited
- Francis D. Whillans
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Readily dispersible silicone-coated finely divided solids
- Patent number 4,369,265
- Issue date Jan 18, 1983
- Bayer Aktiengesellschaft
- Gunter Buxbaum
- C01 - INORGANIC CHEMISTRY
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
Process for the preparation of magnetic beads of vinylaromatic poly...
- Patent number 4,339,337
- Issue date Jul 13, 1982
- Rhone-Poulenc Industries
- Marc Tricot
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Magnetic recording crystals, process for producing same, and magnet...
- Patent number 4,255,492
- Issue date Mar 10, 1981
- Eastman Kodak Company
- Roger G. L. Audran
- 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
Manufacture of acicular, ferrimagnetic iron oxide
- Patent number 4,213,959
- Issue date Jul 22, 1980
- BASF Aktiengesellschaft
- Rudolf Brodt
- 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
Information Patent Grant
Hydrothermal process for producing dense iron oxide pigments
- Patent number 4,140,539
- Issue date Feb 20, 1979
- Bayer Aktiengesellschaft
- Franz Hund
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
TAPE MEDIA HAVING SYNERGISTIC MAGNETIC RECORDING LAYER AND UNDERLAYER
- Publication number 20210390980
- Publication date Dec 16, 2021
- International Business Machines Corporation
- Richard Bradshaw
- G11 - INFORMATION STORAGE
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
Information Patent Application
Ultrafine hexagonal ferrite particles
- Publication number 20030235689
- Publication date Dec 25, 2003
- William Rafaniello
- G11 - INFORMATION STORAGE

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Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Tape media having synergistic magnetic recording layer and underlayer

Magnetic recording layer formulation for tape media

Tape media having synergistic magnetic recording layer and underlayer

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

Hydrophobic treatment of pigments

Pigment dispersion

Method for preparing magnetic ink and dry pigment particles used th...

Coated granular magnetite particles and process for producing the same

Acicular magnetic iron oxide particles and process for producing th...

Granulated particles for magnetic particles for magnetic recording,...

Hard disk magnetic recording medium comprising magnetic powder and...

Magnetic iron oxide pigments and a process for their preparation

Magnetic iron oxide pigments and a process for their preparation

Inorganic powders with improved dispersibility

Magnetic recording medium

Process for the production of iron oxides epitaxially coated with c...

Ferromagnetic recording materials

Surface treatment method for magnetic particles

Magnetic recording medium

Magnetic powder for magnetic recording medium

Method of manufacturing a magnetic recording element

Process for protecting magnetic particles with chromium oxide

Readily dispersible silicone-coated finely divided solids

Process for producing magnetic powder having high coercive force

Process for the preparation of magnetic beads of vinylaromatic poly...

Magnetic recording crystals, process for producing same, and magnet...

Manufacture of acicular ferrimagnetic iron oxides

Manufacture of acicular, ferrimagnetic iron oxide

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

Hydrothermal process for producing dense iron oxide pigments

Patents Applicationslast 30 patents

TAPE MEDIA HAVING SYNERGISTIC MAGNETIC RECORDING LAYER AND UNDERLAYER

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

Ultrafine hexagonal ferrite particles