DE3038646C2 - - Google Patents

Info

Publication number
DE3038646C2
DE3038646C2 DE3038646A DE3038646A DE3038646C2 DE 3038646 C2 DE3038646 C2 DE 3038646C2 DE 3038646 A DE3038646 A DE 3038646A DE 3038646 A DE3038646 A DE 3038646A DE 3038646 C2 DE3038646 C2 DE 3038646C2
Authority
DE
Germany
Prior art keywords
magnetic
group
recording material
magnetic recording
magnetizable particles
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
Application number
DE3038646A
Other languages
German (de)
English (en)
Other versions
DE3038646A1 (de
Inventor
Kouichi Yokohama Kanagawa Jp Kawasumi
Haruo Yokohama Kanagawa Jp Watanabe
Junetsu Yokohama Kanagawa Jp Seto
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of DE3038646A1 publication Critical patent/DE3038646A1/de
Application granted granted Critical
Publication of DE3038646C2 publication Critical patent/DE3038646C2/de
Granted legal-status Critical Current

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
    • G11B5/71—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
    • 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
    • G11B5/712—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 surface treatment or coating of magnetic 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
    • 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

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
DE19803038646 1979-10-13 1980-10-13 Magnetaufzeichnungsmaterial Granted DE3038646A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13219679A JPS5658135A (en) 1979-10-13 1979-10-13 Magnetic recording medium

Publications (2)

Publication Number Publication Date
DE3038646A1 DE3038646A1 (de) 1981-04-23
DE3038646C2 true DE3038646C2 (enExample) 1993-09-16

Family

ID=15075637

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803038646 Granted DE3038646A1 (de) 1979-10-13 1980-10-13 Magnetaufzeichnungsmaterial

Country Status (4)

Country Link
US (1) US4330600A (enExample)
JP (1) JPS5658135A (enExample)
DE (1) DE3038646A1 (enExample)
FR (1) FR2467459A1 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688471A (en) * 1979-12-20 1981-07-17 Mitsui Toatsu Chem Inc Magnetic paint composition
JPS57111829A (en) * 1980-12-27 1982-07-12 Konishiroku Photo Ind Co Ltd Magnetic recording medium
US4397751A (en) * 1981-05-04 1983-08-09 International Business Machines Corporation Magnetic disk coatings
JPS57210439A (en) * 1981-06-20 1982-12-24 Hitachi Maxell Ltd Magnetic recording medium
JPS57210440A (en) * 1981-06-20 1982-12-24 Hitachi Maxell Ltd Magnetic recording medium
JPS57210437A (en) * 1981-06-20 1982-12-24 Hitachi Maxell Ltd Magnetic recording medium
JPS57210442A (en) * 1981-06-20 1982-12-24 Hitachi Maxell Ltd Magnetic recording medium
JPS5982633A (ja) * 1982-11-02 1984-05-12 Sumitomo Chem Co Ltd 親油性表面を有する磁気記録用研磨剤
US4584243A (en) * 1982-11-01 1986-04-22 Sumitomo Chemical Company, Limited Abrasive, production thereof and use thereof in magnetic recording medium
JP2557615B2 (ja) * 1983-09-16 1996-11-27 ティーディーケイ株式会社 磁気記録媒体及びその製造方法
JPS6070518A (ja) * 1983-09-28 1985-04-22 Toshiba Corp 磁気記録媒体
JPS60107731A (ja) * 1983-11-16 1985-06-13 Kao Corp 磁気記録媒体
US4687705A (en) * 1984-05-08 1987-08-18 Fuji Photo Film Co., Ltd. Magnetic recording medium
CA1288881C (en) 1985-10-04 1991-09-10 Ismael Colon Phosphorylated reaction products and compositions incorporating such products
CA1278399C (en) * 1985-10-15 1990-12-27 Charles Neale Merriam Vinyl chloride resins and compositions incorporating such resins
JPH06161032A (ja) * 1992-11-26 1994-06-07 Fuji Photo Film Co Ltd ハロゲン化銀写真感光材料
RU2120147C1 (ru) * 1996-09-06 1998-10-10 Акционерное общество закрытого типа "Тетра" Тонкопленочный магнитный материал
US6938479B2 (en) * 2002-08-12 2005-09-06 Randy Val Carpenter Sensing device for measuring volume, position, or mass of matter
JP5010561B2 (ja) * 2008-09-05 2012-08-29 株式会社東芝 水浄化用機磁性粒子およびそれを用いた水処理方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298560B (de) * 1967-12-02 1969-07-03 Basf Ag Magnetogrammtraeger
DE2051924B2 (de) * 1969-10-30 1979-07-12 Freeport Minerals Co., New York, N.Y. (V.St.A.) Anorganische Organotitanatzusammensetzung
JPS5240847B2 (enExample) * 1972-10-05 1977-10-14
JPS554804B2 (enExample) * 1975-03-22 1980-02-01
JPS547310A (en) * 1977-06-20 1979-01-20 Nippon Telegr & Teleph Corp <Ntt> Magnetic coating composition
JPS5853409B2 (ja) * 1979-03-22 1983-11-29 富士化学紙工業株式会社 磁気記録体
JPS5853409A (ja) * 1981-09-25 1983-03-30 株式会社ノザワ 異質積層板の製造方法

Also Published As

Publication number Publication date
FR2467459A1 (fr) 1981-04-17
JPH0120489B2 (enExample) 1989-04-17
DE3038646A1 (de) 1981-04-23
JPS5658135A (en) 1981-05-21
FR2467459B1 (enExample) 1984-03-16
US4330600A (en) 1982-05-18

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee