DE69211242T2 - Magnetteilchen für magnetische aufzeichnung und magnetische aufzeichnungsträger daraus - Google Patents
Magnetteilchen für magnetische aufzeichnung und magnetische aufzeichnungsträger darausInfo
- Publication number
- DE69211242T2 DE69211242T2 DE69211242T DE69211242T DE69211242T2 DE 69211242 T2 DE69211242 T2 DE 69211242T2 DE 69211242 T DE69211242 T DE 69211242T DE 69211242 T DE69211242 T DE 69211242T DE 69211242 T2 DE69211242 T2 DE 69211242T2
- Authority
- DE
- Germany
- Prior art keywords
- magnetic
- magnetic recording
- carriers
- particles
- recording
- 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
- G11B5/708—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 addition of non-magnetic particles to the 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
- G11B5/70626—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 containing non-metallic substances
- G11B5/70631—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 containing non-metallic substances with a non-magnetic core
-
- 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
- G11B5/70626—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 containing non-metallic substances
- G11B5/70642—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 containing non-metallic substances iron oxides
- G11B5/70678—Ferrites
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3116591 | 1991-02-27 | ||
JP4038267A JPH0582324A (ja) | 1991-02-27 | 1992-02-26 | 磁気記録用磁性粉およびそれを用いた磁気記録媒体 |
PCT/JP1992/000212 WO1992015996A1 (en) | 1991-02-27 | 1992-02-27 | Magnetic powder for magnetic recording and magnetic recording medium made thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69211242D1 DE69211242D1 (de) | 1996-07-11 |
DE69211242T2 true DE69211242T2 (de) | 1996-12-05 |
Family
ID=26369617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69211242T Expired - Fee Related DE69211242T2 (de) | 1991-02-27 | 1992-02-27 | Magnetteilchen für magnetische aufzeichnung und magnetische aufzeichnungsträger daraus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0526661B1 (de) |
JP (1) | JPH0582324A (de) |
KR (1) | KR960009122B1 (de) |
DE (1) | DE69211242T2 (de) |
WO (1) | WO1992015996A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996030318A1 (fr) * | 1995-03-30 | 1996-10-03 | Nippon Sanso Corporation | Matiere carbonee poreuse, procede de production de ladite matiere et utilisation de cette derniere |
JPH10312937A (ja) * | 1997-05-13 | 1998-11-24 | Nippon Sanso Kk | 電気二重層キャパシタ用炭素材の製造方法並びに炭素電極および電気二重層キャパシタ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2509558B2 (ja) * | 1985-08-29 | 1996-06-19 | 株式会社東芝 | 高密度磁気記録用磁性粉およびそれを用いた磁気記録用媒体 |
JP2659940B2 (ja) * | 1986-11-29 | 1997-09-30 | 株式会社 東芝 | 高密度磁気記録用磁性粉およびその製造方法 |
JPS63193507A (ja) * | 1987-02-06 | 1988-08-10 | Toshiba Corp | 高密度磁気記録用磁性粉およびそれを用いた磁気記録用媒体 |
JP2706774B2 (ja) * | 1988-01-29 | 1998-01-28 | 東芝硝子株式会社 | 置換型六方晶系フェライト磁性粉末の製造方法 |
-
1992
- 1992-02-26 JP JP4038267A patent/JPH0582324A/ja active Pending
- 1992-02-27 EP EP92906206A patent/EP0526661B1/de not_active Expired - Lifetime
- 1992-02-27 WO PCT/JP1992/000212 patent/WO1992015996A1/ja active IP Right Grant
- 1992-02-27 DE DE69211242T patent/DE69211242T2/de not_active Expired - Fee Related
- 1992-02-27 KR KR1019920701982A patent/KR960009122B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0526661A1 (de) | 1993-02-10 |
EP0526661B1 (de) | 1996-06-05 |
KR927004274A (ko) | 1992-12-19 |
KR960009122B1 (ko) | 1996-07-13 |
DE69211242D1 (de) | 1996-07-11 |
WO1992015996A1 (en) | 1992-09-17 |
EP0526661A4 (en) | 1993-08-11 |
JPH0582324A (ja) | 1993-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SG49693A1 (en) | Magnetic recording media and processes for manufacture thereof | |
DE69307755D1 (de) | Magnetischer Aufzeichnungsträger | |
DE69331400D1 (de) | Magnetischer Aufzeichnungsträger | |
DE69326124D1 (de) | Magnetischer Aufzeichnungsträger | |
DE69227425T2 (de) | Magnetisches Aufzeichnungsmedium und Herstellungsverfahren | |
DE69209532T2 (de) | Magnetplatte und Magnetplattenvorrichtung | |
DE69332536T2 (de) | Magnetischer aufzeichnungsträger | |
DE69426756T2 (de) | Nichtmagnetische Unterschicht für magnetischer Aufzeichnungsmedium, magnetisches Aufzeichnungsmedium und nichtmagnetische Teilchen | |
DE59205483D1 (de) | Magnetische Aufzeichnungsträger | |
DE69119267D1 (de) | Magnetisches Aufzeichnungs- und Wiedergabesystem | |
DE59305529D1 (de) | Magnetische Aufzeichnungsträger | |
DE68917208T2 (de) | Bindemittel für magnetische Aufzeichnungsträger und magnetische Aufzeichnungsträger. | |
DE69118775T2 (de) | Gerät für magnetische Aufzeichnung und Wiedergabe | |
DE69033356D1 (de) | Gerät für magnetische Aufzeichnung und Wiedergabe | |
DE69219376T2 (de) | Magnetaufzeichnungs- und Wiedergabemethode und Gerät | |
DE69310417D1 (de) | Magnetische Trägerteilchen | |
DE69211242D1 (de) | Magnetteilchen für magnetische aufzeichnung und magnetische aufzeichnungsträger daraus | |
DE59305437D1 (de) | Magnetische Aufzeichnungsträger | |
DE69307283D1 (de) | Magnetisches Aufnahme- und Wiedergabegerät | |
DE69325760T2 (de) | Magnetisches Aufnahme- und Wiedergabegerät | |
DE69317038D1 (de) | Magnetischer Aufzeichnungsträger | |
DE69323128D1 (de) | Magnetischer Aufzeichnungsträger | |
DE69123786D1 (de) | Magnetische Aufzeichnungseinrichtung und magnetische Aufzeichnungs-/Wiedergabeeinrichtung | |
DE69119264T2 (de) | Magnetisches Aufzeichnungs- und Wiedergabesystem | |
DE69325214D1 (de) | Magnetischer Aufzeichnungsträger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |