JPS5133758A - - Google Patents

Info

Publication number
JPS5133758A
JPS5133758A JP49106901A JP10690174A JPS5133758A JP S5133758 A JPS5133758 A JP S5133758A JP 49106901 A JP49106901 A JP 49106901A JP 10690174 A JP10690174 A JP 10690174A JP S5133758 A JPS5133758 A JP S5133758A
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP49106901A
Inventor
Masashi Aonuma
Hiroshi Ogawa
Yasuo Tamai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP49106901A priority Critical patent/JPS5133758A/ja
Priority to US05/614,274 priority patent/US4063000A/en
Priority to CA235,681A priority patent/CA1065651A/en
Publication of JPS5133758A publication Critical patent/JPS5133758A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/061—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder with a protective layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G11B5/70615—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys containing Fe metal or alloys
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G11B5/70621—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys containing Co metal or alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
JP49106901A 1974-09-17 1974-09-17 Pending JPS5133758A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP49106901A JPS5133758A (ja) 1974-09-17 1974-09-17
US05/614,274 US4063000A (en) 1974-09-17 1975-09-17 Process for production of ferromagnetic powder
CA235,681A CA1065651A (en) 1974-09-17 1975-09-17 Process for production of ferromagnetic powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49106901A JPS5133758A (ja) 1974-09-17 1974-09-17

Publications (1)

Publication Number Publication Date
JPS5133758A true JPS5133758A (ja) 1976-03-23

Family

ID=14445351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49106901A Pending JPS5133758A (ja) 1974-09-17 1974-09-17

Country Status (3)

Country Link
US (1) US4063000A (ja)
JP (1) JPS5133758A (ja)
CA (1) CA1065651A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS538798A (en) * 1976-07-13 1978-01-26 Hitachi Maxell Metallic magnetic powder for magnetic recording which has excellent oxidation stability and method of manufacture thereof
JPS57205461A (en) * 1981-06-13 1982-12-16 Toho Chem Ind Co Ltd Magnetic material and production thereof
JPS60242467A (ja) * 1984-05-17 1985-12-02 Konishiroku Photo Ind Co Ltd 金属磁性粉の処理方法

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2460049A1 (de) * 1974-04-15 1975-10-23 Ibm Verfahren zum herstellen von fe tief 3 0 tief 4
JPS5816248B2 (ja) * 1975-11-05 1983-03-30 富士写真フイルム株式会社 シンキナジキキロクタイ
JPS6044805B2 (ja) * 1976-08-27 1985-10-05 日本ビクター株式会社 磁気記録媒体の製造方法
US4137342A (en) * 1976-10-29 1979-01-30 Minnesota Mining And Manufacturing Company Cobalt-doped acicular hyper-magnetite particles
JPS5376957A (en) * 1976-12-20 1978-07-07 Hitachi Maxell Magnetic metal iron powder and said manufacturing process
NL7704183A (nl) * 1977-04-18 1978-10-20 Philips Nv Magnetisch registreermedium waarin als disper- geermiddel een n-acylsarcosine derivaat wordt toegepast.
JPS5424000A (en) * 1977-07-22 1979-02-22 Fuji Photo Film Co Ltd High density magnetograph substance
JPS5813008B2 (ja) * 1977-10-06 1983-03-11 日本ビクター株式会社 磁性鉄粉の製造方法
JPS54121269A (en) * 1978-03-14 1979-09-20 Tdk Corp Manufacture of ferromagnetic metal powder
JPS54121268A (en) * 1978-03-14 1979-09-20 Tdk Corp Manufacture of ferromagnetic metal powder
JPS54122663A (en) * 1978-03-16 1979-09-22 Kanto Denka Kogyo Kk Production of magnetic powder for magnetic recording based on iron
DE2815712A1 (de) * 1978-04-12 1979-10-25 Bayer Ag Eisenoxide zur magnetischen signalaufzeichnung und verfahren zu deren herstellung
US4247597A (en) * 1978-06-28 1981-01-27 Pitney Bowes, Inc. Electroscopic carrier particles having a carboxylic acid surface treatment
US4305752A (en) * 1979-07-30 1981-12-15 Pfizer Inc. Metallic iron particles for magnetic recording
US4256484A (en) * 1979-07-30 1981-03-17 Pfizer Inc. Metallic iron particles for magnetic recording
JPS5677926A (en) * 1979-11-28 1981-06-26 Tdk Corp Magnetic recording medium using cobalt adhesion type iron oxide
NL8100014A (nl) * 1981-01-06 1982-08-02 Philips Nv Magnetisch registratie element alsmede methoden voor de vervaardiging ervan.
JPS57154618A (en) * 1981-03-19 1982-09-24 Sony Corp Magnetic recording medium
US4514216A (en) * 1983-04-30 1985-04-30 Toda Kogyo Corp. Acicular ferromagnetic alloy particles for magnetic recording and process for producing the same
US4562117A (en) * 1983-05-26 1985-12-31 Konishiroku Photo Industry Co., Ltd. Magnetic recording medium and a process of fabricating such magnetic recording medium
JPS6043217A (ja) * 1983-08-19 1985-03-07 Toshiba Corp 磁気記録媒体
KR870011582A (ko) * 1986-05-27 1987-12-24 시노하라 아끼라 자기 기록 매체
JPH0775062B2 (ja) * 1986-06-06 1995-08-09 日本電気株式会社 磁気記録媒体
NL8601635A (nl) * 1986-06-27 1988-01-18 Vmei Lenin Nis Hittebestendig amorf ferromagnetisch poeder alsmede een werkwijze en inrichting voor de bereiding ervan.
US4822409A (en) * 1986-09-30 1989-04-18 Vmei Lenin, Quartal Darvenitza Method for the manufacture of a thermostable amorphous ferromagnetic powder
DE3826770A1 (de) * 1988-08-06 1990-02-08 Bayer Ag Nadelfoermige legierungspulver auf eisenbasis, verfahren zu ihrer herstellung sowie deren verwendung
EP0361698B1 (en) * 1988-09-05 1993-06-23 Mitsubishi Petrochemical Company Limited Carbon-containing magnetic metal powder
US5683615A (en) * 1996-06-13 1997-11-04 Lord Corporation Magnetorheological fluid
US6262129B1 (en) * 1998-07-31 2001-07-17 International Business Machines Corporation Method for producing nanoparticles of transition metals
US7282710B1 (en) 2002-01-02 2007-10-16 International Business Machines Corporation Scanning probe microscopy tips composed of nanoparticles and methods to form same
US6897650B2 (en) * 2002-02-11 2005-05-24 International Business Machines Corporation Magnetic-field sensor device
US7850760B2 (en) * 2004-04-30 2010-12-14 Sumitomo Electric Industries, Ltd. Process for production of chain metal powders, chain metal powders produced thereby, and anisotropic conductive film formed using the powders
DE102006024289A1 (de) * 2006-05-24 2007-11-29 Merck Patent Gmbh Partikel
CN110648815B (zh) * 2019-09-29 2020-07-07 南京航空航天大学 一种精确控制磁性粒子轴向分布的磁流变弹性体及其制备方法
EP4137250A4 (en) * 2021-01-21 2023-09-20 Resonac Corporation COMPOUND WITH AGGLOMERATED CORE, MOLDED BODY AND CONDITIONED CORE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139354A (en) * 1961-03-31 1964-06-30 Rca Corp Magnetic recording element containing magnetic particles treated with werner-type complex compound and method of manufacture thereof
JPS4320116Y1 (ja) * 1966-05-10 1968-08-23
US3567525A (en) * 1968-06-25 1971-03-02 Du Pont Heat treated ferromagnetic particles
US3756866A (en) * 1970-06-30 1973-09-04 Ibm Method and manufacturing magnetic alloy particles having selective coercivity
US3663318A (en) * 1970-10-05 1972-05-16 Du Pont Process for making ferromagnetic metal powders

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS538798A (en) * 1976-07-13 1978-01-26 Hitachi Maxell Metallic magnetic powder for magnetic recording which has excellent oxidation stability and method of manufacture thereof
JPS609322B2 (ja) * 1976-07-13 1985-03-09 日立マクセル株式会社 磁気記録用金属磁性粉末の製造法
JPS57205461A (en) * 1981-06-13 1982-12-16 Toho Chem Ind Co Ltd Magnetic material and production thereof
JPH0123922B2 (ja) * 1981-06-13 1989-05-09 Toho Chem Ind Co Ltd
JPS60242467A (ja) * 1984-05-17 1985-12-02 Konishiroku Photo Ind Co Ltd 金属磁性粉の処理方法
JPH0340923B2 (ja) * 1984-05-17 1991-06-20

Also Published As

Publication number Publication date
US4063000A (en) 1977-12-13
CA1065651A (en) 1979-11-06

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