JPS5512545A - Magnetic recording media - Google Patents

Magnetic recording media

Info

Publication number
JPS5512545A
JPS5512545A JP8443378A JP8443378A JPS5512545A JP S5512545 A JPS5512545 A JP S5512545A JP 8443378 A JP8443378 A JP 8443378A JP 8443378 A JP8443378 A JP 8443378A JP S5512545 A JPS5512545 A JP S5512545A
Authority
JP
Japan
Prior art keywords
magnetic
unevenness
head
information signal
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.)
Pending
Application number
JP8443378A
Other languages
Japanese (ja)
Inventor
Hiroshi Yubi
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
Priority to JP8443378A priority Critical patent/JPS5512545A/en
Publication of JPS5512545A publication Critical patent/JPS5512545A/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
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • 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
    • 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
    • G11B5/82—Disk carriers

Abstract

PURPOSE:To make easy massproduction and to ensure to reproduce the recording signal such as video signal easily, by forming the recording track arranging a number of unevenness according to the information signal and magnetizing the magnetic surface. CONSTITUTION:Non-magnetic material such as polyvinylchloride is pressed with the stamper heated and the base 6 forming the recording track 3 consisting of a number of unevenness 4 and 5 on the surface, which is arranged according to the information signal, is picked up after cooling. The thin magnetic substance layer 7 and the non-magnetic substance protection layer 9 are provided along the unevenness 4 and 5, and the layer 7 is DC-magnetized to obtain the magnetic recording media 1 having the coated magnetic surface 8. The stylus 40 consisting of the head 38 clipping the gap material 33 with the head materials 34 and 35 and the needle 30 such as supphire contacts and slides the surface of the media 1, then an output voltage is obtained at the winding of the head 38, and the information signal recorded with the discrimination of the output voltage can be read in.
JP8443378A 1978-07-11 1978-07-11 Magnetic recording media Pending JPS5512545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8443378A JPS5512545A (en) 1978-07-11 1978-07-11 Magnetic recording media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8443378A JPS5512545A (en) 1978-07-11 1978-07-11 Magnetic recording media

Publications (1)

Publication Number Publication Date
JPS5512545A true JPS5512545A (en) 1980-01-29

Family

ID=13830443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8443378A Pending JPS5512545A (en) 1978-07-11 1978-07-11 Magnetic recording media

Country Status (1)

Country Link
JP (1) JPS5512545A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981000165A1 (en) * 1979-07-02 1981-01-22 Tokyo Shibaura Electric Co Magnetic transfer recording method
JPS578932A (en) * 1980-06-20 1982-01-18 Toppan Printing Co Ltd Manufacture of high-density information recording carrier
JPS5730113A (en) * 1980-07-28 1982-02-18 Toppan Printing Co Ltd Magnetic pickup
JPS5740767A (en) * 1980-08-22 1982-03-06 Toppan Printing Co Ltd Information recording carrier and its manufacture
JPS5760548A (en) * 1980-09-29 1982-04-12 Toppan Printing Co Ltd Manufacture for information recording carrier
JPS57133536A (en) * 1981-02-10 1982-08-18 Toppan Printing Co Ltd Production of information carrier
JPS59229757A (en) * 1983-12-26 1984-12-24 Toppan Printing Co Ltd Pickup for reproduction of information signal
WO1999049457A1 (en) * 1998-03-20 1999-09-30 Matsushita Electric Industrial Co., Ltd. Master information support
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

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981000165A1 (en) * 1979-07-02 1981-01-22 Tokyo Shibaura Electric Co Magnetic transfer recording method
JPS578932A (en) * 1980-06-20 1982-01-18 Toppan Printing Co Ltd Manufacture of high-density information recording carrier
JPS5730113A (en) * 1980-07-28 1982-02-18 Toppan Printing Co Ltd Magnetic pickup
JPS5740767A (en) * 1980-08-22 1982-03-06 Toppan Printing Co Ltd Information recording carrier and its manufacture
JPS5760548A (en) * 1980-09-29 1982-04-12 Toppan Printing Co Ltd Manufacture for information recording carrier
JPS57133536A (en) * 1981-02-10 1982-08-18 Toppan Printing Co Ltd Production of information carrier
JPS59229757A (en) * 1983-12-26 1984-12-24 Toppan Printing Co Ltd Pickup for reproduction of information signal
JPH0259528B2 (en) * 1983-12-26 1990-12-12 Toppan Printing Co Ltd
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
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
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
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
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
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
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

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