FR2409569A1 - Milieu d'enregistrement magnetique - Google Patents
Milieu d'enregistrement magnetiqueInfo
- Publication number
- FR2409569A1 FR2409569A1 FR7832397A FR7832397A FR2409569A1 FR 2409569 A1 FR2409569 A1 FR 2409569A1 FR 7832397 A FR7832397 A FR 7832397A FR 7832397 A FR7832397 A FR 7832397A FR 2409569 A1 FR2409569 A1 FR 2409569A1
- Authority
- FR
- France
- Prior art keywords
- magnetic
- magnetic recording
- approximately
- recording medium
- substrate
- 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.)
- Granted
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
- G11B5/716—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 two or more magnetic layers
- G11B5/718—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 two or more magnetic layers at least one on each side of the base 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
- G11B5/708—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
- G11B5/7085—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 non-magnetic abrasive particles
-
- 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
- G11B5/71—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 lubricant
-
- 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
Abstract
L'INVENTION CONCERNE UN MILIEU D'ENREGISTREMENT MAGNETIQUE. LE MILIEU EST CONSTITUE D'UN SUBSTRAT ET D'UNE COUCHE MAGNETIQUE EPAISSE D'ENVIRON1,0 A 10MM, CONSTITUEE DE PARTICULES MAGNETIQUES ET D'UN LIANT, FORMEE SUR LE SUBSTRAT, ET IL EST CARACTERISE EN CE QUE LA COUCHE MAGNETIQUE EST DE PLUS CONSTITUEE DE A. UN HYDROCARBURE LIQUIDE AYANT UN POINT DE FUSION OU D'ECOULEMENT D'ENVIRON -20 A -60C, DE B. DES PARTICULES D'OXYDE DE FERA AYANT UNE TAILLE DE 0,5 A 2MM ETOU DE C UN ACIDE GRAS SUPERIEUR AYANT UN POINT DE FUSION D'ENVIRON 45C OU PLUS. L'INVENTION S'APPLIQUE A DES MILIEUX D'ENREGISTREMENT MAGNETIQUE AYANT UNE DURABILITE ACCRUE ET EN PARTICULIER A DES CARTOUCHES3, 6 A DISQUE MAGNETIQUE1.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13822277A JPS5470806A (en) | 1977-11-16 | 1977-11-16 | Magnetic recording medium |
JP13822377A JPS5470807A (en) | 1977-11-16 | 1977-11-16 | Magnetic recording medium |
JP13913177A JPS5472011A (en) | 1977-11-19 | 1977-11-19 | Magnetic disk cartridge |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2409569A1 true FR2409569A1 (fr) | 1979-06-15 |
FR2409569B1 FR2409569B1 (fr) | 1982-02-12 |
Family
ID=27317623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7832397A Granted FR2409569A1 (fr) | 1977-11-16 | 1978-11-16 | Milieu d'enregistrement magnetique |
Country Status (5)
Country | Link |
---|---|
US (1) | US4223361A (fr) |
CA (1) | CA1119295A (fr) |
DE (1) | DE2849796C3 (fr) |
FR (1) | FR2409569A1 (fr) |
GB (1) | GB2008307B (fr) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5661035A (en) * | 1979-10-24 | 1981-05-26 | Hitachi Maxell Ltd | Magnetic recording medium |
US4354213A (en) * | 1980-06-02 | 1982-10-12 | Verbatim Corporation | Self-lubricating liner |
US4414597A (en) * | 1981-09-14 | 1983-11-08 | Chicopee | Floppy disc liner |
JPS59178659A (ja) * | 1983-03-29 | 1984-10-09 | Fuji Photo Film Co Ltd | フレキシブル磁気デイスク |
JPS59195322A (ja) * | 1983-04-20 | 1984-11-06 | Toray Ind Inc | 磁気デイスク |
US4626941A (en) * | 1983-05-26 | 1986-12-02 | Fujitsu Limited | Method and apparatus for suppressing the evaporation of lubricant film coated on magnetic disks of a disk storage |
US4632250A (en) * | 1983-07-22 | 1986-12-30 | Dynic Corporation | Magnetic shielding members |
US4595640A (en) * | 1983-12-27 | 1986-06-17 | Minnesota Mining And Manufacturing Company | Lubricant system for magnetic recording media containing isomeric acids or alcohols |
US4485421A (en) * | 1984-04-10 | 1984-11-27 | Toyo Bussan Kabushiki Kaisha | Colored floppy diskette |
US4626463A (en) * | 1984-09-26 | 1986-12-02 | Minnesota Mining And Manufacturing Company | Diskette having wear-resistant magnetizable layer |
US4646193A (en) * | 1985-02-21 | 1987-02-24 | Magnetic Peripherals Inc. | Disk cartridge assembly |
KR940005563B1 (ko) * | 1985-03-14 | 1994-06-20 | 히다찌 마구세루 가부시기가이샤 | 디스크 카아트리지 |
JPH0356923Y2 (fr) * | 1985-06-14 | 1991-12-24 | ||
JPH0740423B2 (ja) * | 1986-03-01 | 1995-05-01 | 日立マクセル株式会社 | デイスクカ−トリツジ |
JP2542226B2 (ja) * | 1987-10-31 | 1996-10-09 | 日立マクセル株式会社 | 印字受容層を有する券片 |
KR900002242A (ko) * | 1988-07-14 | 1990-02-28 | 나가이 아쯔시 | 자기디스크 카트리지 |
US5060105B1 (en) * | 1990-04-16 | 1996-12-03 | Int Paper Co | Hybrid nonwoven diskette liner |
US5455109A (en) * | 1993-04-20 | 1995-10-03 | Hollingsworth & Vose Company | Disk lining material |
JP3941441B2 (ja) * | 2001-09-11 | 2007-07-04 | トヨタ自動車株式会社 | 内燃機関の始動時制御装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2060553A5 (fr) * | 1969-09-29 | 1971-06-18 | Ibm | |
US3833412A (en) * | 1967-08-24 | 1974-09-03 | Fuji Photo Film Co Ltd | Magnetic recording medium |
DE2506210A1 (de) * | 1974-02-15 | 1975-09-11 | Fuji Photo Film Co Ltd | Magnetisches aufzeichnungsmaterial |
DE2428690A1 (de) * | 1974-06-14 | 1976-01-02 | Basf Ag | Schichtmagnetogrammtraeger mit vermindertem reibungskoeffizienten |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3790407A (en) * | 1970-12-28 | 1974-02-05 | Ibm | Recording media and method of making |
GB1489436A (en) * | 1973-12-28 | 1977-10-19 | Basf Ag | Magnetic recording medium containing lubricants |
US3919719A (en) * | 1974-04-04 | 1975-11-11 | Iit Res Inst | Surface lubrication of magnetic media |
JPS5270811A (en) * | 1975-12-10 | 1977-06-13 | Fuji Photo Film Co Ltd | Magnetic recording material |
-
1978
- 1978-11-15 GB GB7844571A patent/GB2008307B/en not_active Expired
- 1978-11-16 US US05/961,279 patent/US4223361A/en not_active Expired - Lifetime
- 1978-11-16 FR FR7832397A patent/FR2409569A1/fr active Granted
- 1978-11-16 DE DE2849796A patent/DE2849796C3/de not_active Expired
- 1978-11-16 CA CA000316317A patent/CA1119295A/fr not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3833412A (en) * | 1967-08-24 | 1974-09-03 | Fuji Photo Film Co Ltd | Magnetic recording medium |
FR2060553A5 (fr) * | 1969-09-29 | 1971-06-18 | Ibm | |
DE2506210A1 (de) * | 1974-02-15 | 1975-09-11 | Fuji Photo Film Co Ltd | Magnetisches aufzeichnungsmaterial |
DE2428690A1 (de) * | 1974-06-14 | 1976-01-02 | Basf Ag | Schichtmagnetogrammtraeger mit vermindertem reibungskoeffizienten |
Non-Patent Citations (1)
Title |
---|
ABJP/74 * |
Also Published As
Publication number | Publication date |
---|---|
DE2849796B2 (de) | 1980-11-20 |
GB2008307A (en) | 1979-05-31 |
DE2849796C3 (de) | 1984-01-12 |
DE2849796A1 (de) | 1979-05-17 |
US4223361A (en) | 1980-09-16 |
CA1119295A (fr) | 1982-03-02 |
FR2409569B1 (fr) | 1982-02-12 |
GB2008307B (en) | 1982-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |