JPS5570935A - Manufacture for magnetic recording media - Google Patents

Manufacture for magnetic recording media

Info

Publication number
JPS5570935A
JPS5570935A JP14408578A JP14408578A JPS5570935A JP S5570935 A JPS5570935 A JP S5570935A JP 14408578 A JP14408578 A JP 14408578A JP 14408578 A JP14408578 A JP 14408578A JP S5570935 A JPS5570935 A JP S5570935A
Authority
JP
Japan
Prior art keywords
layer
magnetic recording
pitch
holes
magnetic substance
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.)
Pending
Application number
JP14408578A
Other languages
Japanese (ja)
Inventor
Osamu Kubo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14408578A priority Critical patent/JPS5570935A/en
Publication of JPS5570935A publication Critical patent/JPS5570935A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks

Abstract

PURPOSE:To obtain the magnetic recording media excellent in resolution and S/N with high density recording, by providing radiant ray sensing resin layer on the supporter, forming the fine holes less than average sub-microne on the layer with the same pitch, and filling in the magnetic substance in the holes. CONSTITUTION:The radiant ray sensing resin (PMMA or the like) layer 3 is provided on the polyimide film 2 on the glass ring 1, and patterning is made with electron beam e.g., about 0.9mu in diameter and pitch 0.7mu, and development is made, and after evaporating gold 4, the mask is obtained by trichlane processing and removing the layer 3. Next, PMMA layer 3' is placed on the support 7 providing the Al evaporating layer 6 on the Si substrate 5, the said mask is overlapped on it, X-ray exposure is made and development is made to form the fine holes 8 with the said diameter and pitch. Further, baking processing is made and the magnetic substance 9 is formed in the holes 8 with Fe-Ni plating by taking the Al layer 6 as the conductive layer. Vertical magnetic recording is also enabled by giving easy magnetization axis vertically for the magnetic substance to the film 3'.
JP14408578A 1978-11-24 1978-11-24 Manufacture for magnetic recording media Pending JPS5570935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14408578A JPS5570935A (en) 1978-11-24 1978-11-24 Manufacture for magnetic recording media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14408578A JPS5570935A (en) 1978-11-24 1978-11-24 Manufacture for magnetic recording media

Publications (1)

Publication Number Publication Date
JPS5570935A true JPS5570935A (en) 1980-05-28

Family

ID=15353883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14408578A Pending JPS5570935A (en) 1978-11-24 1978-11-24 Manufacture for magnetic recording media

Country Status (1)

Country Link
JP (1) JPS5570935A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118028A (en) * 1982-01-05 1983-07-13 Fuji Xerox Co Ltd Recording medium for vertical magnetic recording
JPS58118029A (en) * 1982-01-05 1983-07-13 Fuji Xerox Co Ltd Double-sided recording medium for vertical magnetic recording
EP0120990A2 (en) * 1983-03-31 1984-10-10 International Business Machines Corporation Read-only magnetic recording media and process of making the same
JPS61280026A (en) * 1985-06-05 1986-12-10 Hitachi Ltd Magnetic recording disk
WO1999049457A1 (en) * 1998-03-20 1999-09-30 Matsushita Electric Industrial Co., Ltd. Master information support
EP1134731A2 (en) * 2000-03-16 2001-09-19 Toda Kogyo Corporation Discrete magnetic thin film elements having perpendicular magnetization
US6347016B1 (en) 1996-07-22 2002-02-12 Matsushita Electric Industrial Co., Ltd. Master information carrier, process for producing the carrier, and method and apparatus for recording master information signal on magnetic recording medium by using the carrier
US6611388B1 (en) 1998-03-23 2003-08-26 Matsushita Electric Industrial Co., Ltd. Master information magnetic recorder
US6714367B1 (en) 1998-10-29 2004-03-30 Matsushita Electric Industrial Co., Ltd. Master information medium and method of master information recording
WO2005093721A1 (en) * 2004-03-26 2005-10-06 Pioneer Corporation Transfer mold and exposure mask for manufacturing magnetic disc board
CN100395825C (en) * 2003-09-22 2008-06-18 Tdk股份有限公司 Process for producing magnetic recording medium and magnetic recording medium

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118029A (en) * 1982-01-05 1983-07-13 Fuji Xerox Co Ltd Double-sided recording medium for vertical magnetic recording
JPH0130223B2 (en) * 1982-01-05 1989-06-16 Fuji Xerox Co Ltd
JPS58118028A (en) * 1982-01-05 1983-07-13 Fuji Xerox Co Ltd Recording medium for vertical magnetic recording
EP0120990A2 (en) * 1983-03-31 1984-10-10 International Business Machines Corporation Read-only magnetic recording media and process of making the same
JPS61280026A (en) * 1985-06-05 1986-12-10 Hitachi Ltd Magnetic recording disk
US6606208B2 (en) 1996-07-22 2003-08-12 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
US6961196B2 (en) 1996-07-22 2005-11-01 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
US6347016B1 (en) 1996-07-22 2002-02-12 Matsushita Electric Industrial Co., Ltd. Master information carrier, process for producing the carrier, and method and apparatus for recording master information signal on magnetic recording medium by using the carrier
US6606209B2 (en) 1996-07-22 2003-08-12 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
US6567227B2 (en) 1996-07-22 2003-05-20 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
US6587290B2 (en) 1996-07-22 2003-07-01 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, and method apparatus for writing information into magnetic record medium using the carrier
US6590727B2 (en) 1996-07-22 2003-07-08 Matsushita Electric Industrial Co., Ltd. Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier
WO1999049457A1 (en) * 1998-03-20 1999-09-30 Matsushita Electric Industrial Co., Ltd. Master information support
US6858328B1 (en) 1998-03-20 2005-02-22 Matsushita Electric Industrial Co., Ltd. Master information support
US6611388B1 (en) 1998-03-23 2003-08-26 Matsushita Electric Industrial Co., Ltd. Master information magnetic recorder
US6714367B1 (en) 1998-10-29 2004-03-30 Matsushita Electric Industrial Co., Ltd. Master information medium and method of master information recording
EP1134731A3 (en) * 2000-03-16 2002-05-29 Toda Kogyo Corporation Discrete magnetic thin film elements having perpendicular magnetization
EP1134731A2 (en) * 2000-03-16 2001-09-19 Toda Kogyo Corporation Discrete magnetic thin film elements having perpendicular magnetization
CN100395825C (en) * 2003-09-22 2008-06-18 Tdk股份有限公司 Process for producing magnetic recording medium and magnetic recording medium
WO2005093721A1 (en) * 2004-03-26 2005-10-06 Pioneer Corporation Transfer mold and exposure mask for manufacturing magnetic disc board

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