iron oxides

Industry

CPC
G11B5/70642

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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

G11B5/70642iron oxides

Industries

Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording medium, magnetic tape cartridge, and magnetic re...
- Patent number 12,131,762
- Issue date Oct 29, 2024
- FUJIFILM Corporation
- Takashi Fujimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having characterized vertical SFD, magnet...
- Patent number 11,894,032
- Issue date Feb 6, 2024
- FUJIFILM Corporation
- Eiki Ozawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of producing magnetic powder and method of producing magneti...
- Patent number 11,830,533
- Issue date Nov 28, 2023
- Sony Corporation
- Natsuki Toyosawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 11,798,588
- Issue date Oct 24, 2023
- Sony Corporation
- Masaru Terakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic tape having characterized coefficient of variation of e-ir...
- Patent number 11,670,333
- Issue date Jun 6, 2023
- FUJIFILM Corporation
- Takashi Fujimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording device and recording method
- Patent number 11,574,652
- Issue date Feb 7, 2023
- The University of Tokyo
- Shin-ichi Ohkoshi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having -iron oxide-containing particles
- Patent number 11,574,651
- Issue date Feb 7, 2023
- Sony Corporation
- Masaru Terakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of producing a magnetic powder and method of producing a mag...
- Patent number 11,521,649
- Issue date Dec 6, 2022
- Sony Corporation
- Atsushi Muramatsu
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording medium, manufacturing method of particles of eps...
- Patent number 11,508,406
- Issue date Nov 22, 2022
- FUJIFILM Corporation
- Takashi Fujimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 11,430,477
- Issue date Aug 30, 2022
- Sony Corporation
- Masaru Terakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
E-iron oxide type ferromagnetic powder, method for manufacturing sa...
- Patent number 11,367,548
- Issue date Jun 21, 2022
- FUJIFILM Corporation
- Takashi Fujimoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Magnetic powder, method for production thereof, and magnetic record...
- Patent number 11,355,270
- Issue date Jun 7, 2022
- Sony Corporation
- Masaru Terakawa
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
E-iron oxide powder, composition including the same, magnetic recor...
- Patent number 11,348,612
- Issue date May 31, 2022
- FUJIFILM Corporation
- Kenji Naoi
- G11 - INFORMATION STORAGE
Information Patent Grant
Core-shell particle, fired product of core-shell particle, manufact...
- Patent number 11,348,711
- Issue date May 31, 2022
- FUJIFILM Corporation
- Kenji Naoi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Recording method, recording device, reproduction method, reproducti...
- Patent number 11,315,595
- Issue date Apr 26, 2022
- The University of Tokyo
- Shin-ichi Ohkoshi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, magnetic recording and reproducing appar...
- Patent number 11,302,356
- Issue date Apr 12, 2022
- FUJIFILM Corporation
- Norihito Kasada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having controlled dimensional variation
- Patent number 11,302,354
- Issue date Apr 12, 2022
- Sony Corporation
- Noboru Sekiguchi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Magnetic recording medium having controlled dimensional variation
- Patent number 11,302,353
- Issue date Apr 12, 2022
- Sony Corporation
- Minoru Yamaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 11,270,729
- Issue date Mar 8, 2022
- Sony Corporation
- Masaru Terakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having controlled coercive force ratio
- Patent number 11,217,277
- Issue date Jan 4, 2022
- Sony Corporation
- Masaru Terakawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic recording medium, manufacturing method of ϵ-type iron oxid...
- Patent number 11,200,913
- Issue date Dec 14, 2021
- FUJIFILM Corporation
- Takashi Fujimoto
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic powder, manufacturing method of magnetic powder, and magne...
- Patent number 11,189,406
- Issue date Nov 30, 2021
- FUJIFILM Corporation
- Takashi Fujimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic powder, method of producing the same, and magnetic recordi...
- Patent number 11,170,813
- Issue date Nov 9, 2021
- Sony Corporation
- Atsushi Muramatsu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Coating-type magnetic recording medium for heat-assisted recording,...
- Patent number 11,100,948
- Issue date Aug 24, 2021
- MAXELL HOLDINGS, LTD.
- Shinji Kawakami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 11,100,949
- Issue date Aug 24, 2021
- FUJIFILM Corporation
- Masashi Shirata
- G11 - INFORMATION STORAGE
Information Patent Grant
Surface-modified iron-based oxide magnetic particle powder
- Patent number 11,097,956
- Issue date Aug 24, 2021
- Dowa Electronics Materials Co., Ltd.
- Kenji Sakane
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
ϵ-iron oxide type ferromagnetic powder and magnetic recording medium
- Patent number 11,090,716
- Issue date Aug 17, 2021
- FUJIFILM Corporation
- Masashi Shirata
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Oriented body, method for producing the same, device for producing...
- Patent number 11,087,792
- Issue date Aug 10, 2021
- The University of Tokyo
- Shin-ichi Ohkoshi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic recording medium having a recording layer including epsilo...
- Patent number 11,031,034
- Issue date Jun 8, 2021
- Sony Corporation
- Masaru Terakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic powder, manufacturing method of magnetic powder, and magne...
- Patent number 10,971,182
- Issue date Apr 6, 2021
- FUJIFILM Corporation
- Takashi Fujimoto
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20230290375
- Publication date Sep 14, 2023
- FUJIFILM CORPORATION
- Eiki OZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20230290376
- Publication date Sep 14, 2023
- FUJIFILM CORPORATION
- Takashi FUJIMOTO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20230238026
- Publication date Jul 27, 2023
- FUJIFILM CORPORATION
- Eiki OZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20230238025
- Publication date Jul 27, 2023
- FUJIFILM CORPORATION
- Eiki OZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20230108104
- Publication date Apr 6, 2023
- FUJIFILM CORPORATION
- Eiki OZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20230100028
- Publication date Mar 30, 2023
- FUJIFILM CORPORATION
- Takashi FUJIMOTO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM
- Publication number 20230075546
- Publication date Mar 9, 2023
- SONY GROUP CORPORATION
- Takeshi TAKAHASHI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC POWDER, MANUFACTURING METHOD OF MAGNETIC POWDER, AND MAGNE...
- Publication number 20220005634
- Publication date Jan 6, 2022
- FUJIFILM CORPORATION
- Takashi FUJIMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RECORDING DEVICE AND RECORDING METHOD
- Publication number 20210375314
- Publication date Dec 2, 2021
- THE UNIVERSITY OF TOKYO
- Shin-ichi OHKOSHI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20210287708
- Publication date Sep 16, 2021
- FUJIFILM CORPORATION
- Eiki OZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20210287707
- Publication date Sep 16, 2021
- FUJIFILM CORPORATION
- Norihito Kasada
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND...
- Publication number 20210287710
- Publication date Sep 16, 2021
- FUJIFILM CORPORATION
- Takashi Fujimoto
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND...
- Publication number 20210287711
- Publication date Sep 16, 2021
- FUJIFILM CORPORATION
- Takashi Fujimoto
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20210287713
- Publication date Sep 16, 2021
- FUJIFILM CORPORATION
- Norihito Kasada
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20210287706
- Publication date Sep 16, 2021
- FUJIFILM CORPORATION
- Megumi NAKANO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND...
- Publication number 20210287709
- Publication date Sep 16, 2021
- FUJIFILM CORPORATION
- Takashi Fujimoto
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...
- Publication number 20210287705
- Publication date Sep 16, 2021
- FUJIFILM CORPORATION
- Norihito Kasada
- G11 - INFORMATION STORAGE
Information Patent Application
RECORDING METHOD, RECORDING DEVICE, REPRODUCTION METHOD, REPRODUCTI...
- Publication number 20210027806
- Publication date Jan 28, 2021
- THE UNIVERSITY OF TOKYO
- Shin-ichi OHKOSHI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM
- Publication number 20200365177
- Publication date Nov 19, 2020
- SONY CORPORATION
- Masaru Terakawa
- G11 - INFORMATION STORAGE
Information Patent Application
E-IRON OXIDE POWDER, COMPOSITION INCLUDING THE SAME, MAGNETIC RECOR...
- Publication number 20200312359
- Publication date Oct 1, 2020
- FUJIFILM CORPORATION
- Kenji NAOI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC POWDER, METHOD FOR PRODUCTION THEREOF, AND MAGNETIC RECORD...
- Publication number 20200303104
- Publication date Sep 24, 2020
- SONY CORPORATION
- MASARU TERAKAWA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
MAGNETIC RECORDING MEDIUM
- Publication number 20190362753
- Publication date Nov 28, 2019
- SONY CORPORATION
- Masaru Terakawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MANUFACTURING METHOD OF PARTICLES OF EPS...
- Publication number 20190304496
- Publication date Oct 3, 2019
- FUJIFILM CORPORATION
- Takashi FUJIMOTO
- C01 - INORGANIC CHEMISTRY
Information Patent Application
CORE-SHELL PARTICLE, FIRED PRODUCT OF CORE-SHELL PARTICLE, MANUFACT...
- Publication number 20190096551
- Publication date Mar 28, 2019
- FUJIFILM CORPORATION
- Kenji NAOI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
MAGNETIC RECORDING MEDIUM
- Publication number 20190066723
- Publication date Feb 28, 2019
- SONY CORPORATION
- Eiji NAKASHIO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM
- Publication number 20180358044
- Publication date Dec 13, 2018
- FUJIFILM CORPORATION
- Masashi SHIRATA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM
- Publication number 20180226093
- Publication date Aug 9, 2018
- SONY CORPORATION
- Masaru Terakawa
- G11 - INFORMATION STORAGE
Information Patent Application
E-IRON OXIDE TYPE FERROMAGNETIC POWDER
- Publication number 20180186654
- Publication date Jul 5, 2018
- FUJIFILM CORPORATION
- Takao MIZOGUCHI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
MAGNETIC RECORDING MEDIUM
- Publication number 20170162220
- Publication date Jun 8, 2017
- SONY CORPORATION
- Eiji NAKASHIO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM
- Publication number 20150111066
- Publication date Apr 23, 2015
- SONY CORPORATION
- Masaru Terakawa
- G11 - INFORMATION STORAGE

iron oxides

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Magnetic recording medium, magnetic tape cartridge, and magnetic re...

Magnetic recording medium having characterized vertical SFD, magnet...

Method of producing magnetic powder and method of producing magneti...

Magnetic recording medium

Magnetic tape having characterized coefficient of variation of e-ir...

Recording device and recording method

Magnetic recording medium having -iron oxide-containing particles

Method of producing a magnetic powder and method of producing a mag...

Magnetic recording medium, manufacturing method of particles of eps...

Magnetic recording medium

E-iron oxide type ferromagnetic powder, method for manufacturing sa...

Magnetic powder, method for production thereof, and magnetic record...

E-iron oxide powder, composition including the same, magnetic recor...

Core-shell particle, fired product of core-shell particle, manufact...

Recording method, recording device, reproduction method, reproducti...

Magnetic recording medium, magnetic recording and reproducing appar...

Magnetic recording medium having controlled dimensional variation

Magnetic recording medium having controlled dimensional variation

Magnetic recording medium

Magnetic recording medium having controlled coercive force ratio

Magnetic recording medium, manufacturing method of ϵ-type iron oxid...

Magnetic powder, manufacturing method of magnetic powder, and magne...

Magnetic powder, method of producing the same, and magnetic recordi...

Coating-type magnetic recording medium for heat-assisted recording,...

Magnetic recording medium

Surface-modified iron-based oxide magnetic particle powder

ϵ-iron oxide type ferromagnetic powder and magnetic recording medium

Oriented body, method for producing the same, device for producing...

Magnetic recording medium having a recording layer including epsilo...

Magnetic powder, manufacturing method of magnetic powder, and magne...

Patents Applicationslast 30 patents

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC RECORDING MEDIUM

MAGNETIC POWDER, MANUFACTURING METHOD OF MAGNETIC POWDER, AND MAGNE...

RECORDING DEVICE AND RECORDING METHOD

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND...

MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND...

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RECORDING AND...

MAGNETIC RECORDING MEDIUM, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC RE...

RECORDING METHOD, RECORDING DEVICE, REPRODUCTION METHOD, REPRODUCTI...

MAGNETIC RECORDING MEDIUM

E-IRON OXIDE POWDER, COMPOSITION INCLUDING THE SAME, MAGNETIC RECOR...

MAGNETIC POWDER, METHOD FOR PRODUCTION THEREOF, AND MAGNETIC RECORD...

MAGNETIC RECORDING MEDIUM

MAGNETIC RECORDING MEDIUM, MANUFACTURING METHOD OF PARTICLES OF EPS...

CORE-SHELL PARTICLE, FIRED PRODUCT OF CORE-SHELL PARTICLE, MANUFACT...

MAGNETIC RECORDING MEDIUM

MAGNETIC RECORDING MEDIUM

MAGNETIC RECORDING MEDIUM

E-IRON OXIDE TYPE FERROMAGNETIC POWDER

MAGNETIC RECORDING MEDIUM

MAGNETIC RECORDING MEDIUM