DE60004142D1 - Magnetisches aufzeichnungsmedium und magnetisches pulver, und herstellungsverfahren - Google Patents
Magnetisches aufzeichnungsmedium und magnetisches pulver, und herstellungsverfahrenInfo
- Publication number
- DE60004142D1 DE60004142D1 DE60004142T DE60004142T DE60004142D1 DE 60004142 D1 DE60004142 D1 DE 60004142D1 DE 60004142 T DE60004142 T DE 60004142T DE 60004142 T DE60004142 T DE 60004142T DE 60004142 D1 DE60004142 D1 DE 60004142D1
- Authority
- DE
- Germany
- Prior art keywords
- recording medium
- production method
- magnetic
- magnetic recording
- magnetic powder
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
- C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
-
- 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
-
- 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
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
-
- 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
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
-
- 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.]
Landscapes
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
- Paints Or Removers (AREA)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3301899 | 1999-02-10 | ||
JP3301899 | 1999-02-10 | ||
JP15720299 | 1999-06-04 | ||
JP15720299 | 1999-06-04 | ||
JP29028399 | 1999-10-12 | ||
JP29028399 | 1999-10-12 | ||
PCT/JP2000/000661 WO2000048210A1 (fr) | 1999-02-10 | 2000-02-08 | Support d'enregistrement magnetique, poudre magnetique et procede d'elaboration |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60004142D1 true DE60004142D1 (de) | 2003-09-04 |
DE60004142T2 DE60004142T2 (de) | 2004-04-22 |
Family
ID=27287940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60004142T Expired - Fee Related DE60004142T2 (de) | 1999-02-10 | 2000-02-08 | Magnetisches aufzeichnungsmedium und magnetisches pulver, und herstellungsverfahren |
Country Status (5)
Country | Link |
---|---|
US (1) | US6517934B1 (de) |
EP (1) | EP1071102B1 (de) |
AU (1) | AU2327300A (de) |
DE (1) | DE60004142T2 (de) |
WO (1) | WO2000048210A1 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001254103A (ja) * | 2000-03-13 | 2001-09-18 | Sanei Kasei Kk | ナノコンポジット構造を有する金属粒子及び自己組織化によるその製造方法 |
US20020045531A1 (en) * | 2000-10-18 | 2002-04-18 | Toru Suzuki | Oriented sintered ceramic product and manufacturing method thereof |
US20030113573A1 (en) * | 2001-12-19 | 2003-06-19 | Pepin John Graeme | Thick film composition yielding magnetic properties |
JP4089808B2 (ja) * | 2001-12-25 | 2008-05-28 | ケミテック株式会社 | 上消し可能なマイクロカプセル磁気泳動表示シート |
US7291409B2 (en) | 2002-03-18 | 2007-11-06 | Hitachi Maxell, Ltd. | Magnetic recording medium using magnetic powder having a core portion and an outer layer portion including a rare earth element and magnetic recording cassette |
US6964811B2 (en) | 2002-09-20 | 2005-11-15 | Hitachi Maxell, Ltd. | Magnetic powder, method for producing the same and magnetic recording medium comprising the same |
DE112004000008T5 (de) * | 2003-02-19 | 2005-06-16 | Hitachi Maxell, Ltd, Ibaraki | Magnetaufzeichnungsmedium |
US20050079132A1 (en) * | 2003-04-08 | 2005-04-14 | Xingwu Wang | Medical device with low magnetic susceptibility |
US20050244337A1 (en) * | 2003-04-08 | 2005-11-03 | Xingwu Wang | Medical device with a marker |
US20050155779A1 (en) * | 2003-04-08 | 2005-07-21 | Xingwu Wang | Coated substrate assembly |
US20050119725A1 (en) * | 2003-04-08 | 2005-06-02 | Xingwu Wang | Energetically controlled delivery of biologically active material from an implanted medical device |
US20050261763A1 (en) * | 2003-04-08 | 2005-11-24 | Xingwu Wang | Medical device |
US20050240100A1 (en) * | 2003-04-08 | 2005-10-27 | Xingwu Wang | MRI imageable medical device |
US20050025797A1 (en) * | 2003-04-08 | 2005-02-03 | Xingwu Wang | Medical device with low magnetic susceptibility |
US20050278020A1 (en) * | 2003-04-08 | 2005-12-15 | Xingwu Wang | Medical device |
US20050149002A1 (en) * | 2003-04-08 | 2005-07-07 | Xingwu Wang | Markers for visualizing interventional medical devices |
US20060102871A1 (en) * | 2003-04-08 | 2006-05-18 | Xingwu Wang | Novel composition |
JP4717331B2 (ja) * | 2003-04-17 | 2011-07-06 | Tdk株式会社 | 磁気記録媒体 |
US20070027532A1 (en) * | 2003-12-22 | 2007-02-01 | Xingwu Wang | Medical device |
JP2006054000A (ja) * | 2004-08-12 | 2006-02-23 | Hitachi Maxell Ltd | 磁気記録媒体 |
US20060118758A1 (en) * | 2004-09-15 | 2006-06-08 | Xingwu Wang | Material to enable magnetic resonance imaging of implantable medical devices |
JP4070147B1 (ja) * | 2006-09-27 | 2008-04-02 | 日立マクセル株式会社 | 磁気記録媒体 |
WO2009117718A1 (en) * | 2008-03-20 | 2009-09-24 | Northeastern University | Direct chemical synthesis of rare earth-transition metal alloy magnetic materials |
US8968590B2 (en) | 2009-09-10 | 2015-03-03 | Northeastern University | Cobalt carbide-based nanoparticle permanent magnet materials |
JP5676910B2 (ja) * | 2010-04-27 | 2015-02-25 | キヤノン株式会社 | セラミクスの製造方法および圧電材料 |
DE102012214729A1 (de) * | 2012-08-20 | 2014-02-20 | Siemens Aktiengesellschaft | Verfahren zur Herstellung von Magnetwerkstoffen |
US10327332B2 (en) * | 2016-10-06 | 2019-06-18 | Microsoft Technology Licensing, Llc | Connecting a flexible circuit to other structures |
GB2555608A (en) * | 2016-11-04 | 2018-05-09 | Rolls Royce Plc | A magnetic material and a method of sythesising the same |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4020236A (en) * | 1975-07-22 | 1977-04-26 | Fuji Photo Film Co., Ltd. | Process for producing a magnetic material and magnetic recording medium containing the same |
JPS55135629A (en) | 1979-04-09 | 1980-10-22 | Fuji Photo Film Co Ltd | Supercalender |
JPS6050323A (ja) | 1983-08-31 | 1985-03-20 | Matsushita Electric Works Ltd | 温水暖房装置 |
US4952444A (en) | 1986-03-14 | 1990-08-28 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
JPH0693297B2 (ja) | 1987-01-30 | 1994-11-16 | 富士写真フイルム株式会社 | 磁気記録媒体 |
JPS63191315A (ja) | 1987-02-04 | 1988-08-08 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
US5252380A (en) | 1988-10-31 | 1993-10-12 | Hitachi Maxell, Ltd. | Acicular alloy containing magnetic recording medium |
DE68918836T2 (de) * | 1989-01-27 | 1995-02-23 | Toda Kogyo Corp | Nadelförmige magnetische Teilchen aus einer Eisenlegierung für magnetische Aufzeichnung und Verfahren zu ihrer Herstellung. |
JP2744114B2 (ja) | 1990-05-11 | 1998-04-28 | 株式会社東芝 | 多周波重畳磁気記録方式および多周波重畳磁気ヘッド記録用磁気記録媒体 |
US5645917A (en) | 1991-04-25 | 1997-07-08 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
US5380905A (en) | 1991-10-09 | 1995-01-10 | Minnesota Mining And Manufacturing Company | Magnetic recording medium having radiation curable binder with α-methylstyrene unsaturation |
JPH05152115A (ja) * | 1991-11-25 | 1993-06-18 | Mitsubishi Materials Corp | 磁気記録粉末の製造法 |
JPH05234064A (ja) | 1992-02-25 | 1993-09-10 | Sony Corp | 磁気記録媒体 |
JPH05347017A (ja) * | 1992-04-14 | 1993-12-27 | Konica Corp | 磁気記録媒体 |
JP2566096B2 (ja) | 1992-04-14 | 1996-12-25 | 富士写真フイルム株式会社 | 磁気記録媒体 |
JPH06199525A (ja) * | 1992-07-02 | 1994-07-19 | Kinya Adachi | 希土類−遷移金属系化合物超微粒子の製造と応用 |
JP2869257B2 (ja) | 1992-07-06 | 1999-03-10 | 三洋電機株式会社 | 分離型空気調和機 |
JP3268830B2 (ja) | 1992-07-10 | 2002-03-25 | 関東電化工業株式会社 | 金属磁性粉末及びその製造方法 |
JP2946262B2 (ja) | 1992-10-22 | 1999-09-06 | 富士写真フイルム株式会社 | 磁気記録媒体 |
US5474623A (en) * | 1993-05-28 | 1995-12-12 | Rhone-Poulenc Inc. | Magnetically anisotropic spherical powder and method of making same |
JPH09194911A (ja) * | 1996-01-10 | 1997-07-29 | Kawasaki Teitoku Kk | 成形性の良好な永久磁石用原料粉末の製造方法 |
JPH09251910A (ja) * | 1996-03-15 | 1997-09-22 | Tokin Corp | 磁気記録用磁性粉末、それを用いた磁気記録媒体、それらの製造方法及び磁気記録の読み取り方法 |
EP0817176B1 (de) * | 1996-07-01 | 2001-11-07 | Fuji Photo Film Co., Ltd. | Plattenförmiges magnetisches Aufzeichnungsmedium |
US5872501A (en) * | 1996-07-07 | 1999-02-16 | Toda Kogyo Corporation | Rare earth bonded magnet and rare earth-iron-boron type magnet alloy |
-
2000
- 2000-02-03 AU AU23273/00A patent/AU2327300A/en not_active Abandoned
- 2000-02-08 US US09/673,028 patent/US6517934B1/en not_active Expired - Fee Related
- 2000-02-08 EP EP00902127A patent/EP1071102B1/de not_active Expired - Lifetime
- 2000-02-08 DE DE60004142T patent/DE60004142T2/de not_active Expired - Fee Related
- 2000-02-08 WO PCT/JP2000/000661 patent/WO2000048210A1/ja active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP1071102A4 (de) | 2001-12-12 |
DE60004142T2 (de) | 2004-04-22 |
WO2000048210A1 (fr) | 2000-08-17 |
AU2327300A (en) | 2000-08-29 |
EP1071102B1 (de) | 2003-07-30 |
US6517934B1 (en) | 2003-02-11 |
EP1071102A1 (de) | 2001-01-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |