JPH0453017B2 - - Google Patents

Info

Publication number
JPH0453017B2
JPH0453017B2 JP9542384A JP9542384A JPH0453017B2 JP H0453017 B2 JPH0453017 B2 JP H0453017B2 JP 9542384 A JP9542384 A JP 9542384A JP 9542384 A JP9542384 A JP 9542384A JP H0453017 B2 JPH0453017 B2 JP H0453017B2
Authority
JP
Japan
Prior art keywords
optical memory
cloth
memory element
adhesive
manufacturing
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
Application number
JP9542384A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60239952A (ja
Inventor
Kenji Oota
Hiroyuki Katayama
Akira Takahashi
Yoshiteru Murakami
Junji Hirokane
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP9542384A priority Critical patent/JPS60239952A/ja
Publication of JPS60239952A publication Critical patent/JPS60239952A/ja
Priority to US07/328,743 priority patent/US4917751A/en
Publication of JPH0453017B2 publication Critical patent/JPH0453017B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs
    • B29L2017/005—CD''s, DVD''s
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
JP9542384A 1984-05-11 1984-05-12 光メモリ素子の製造方法 Granted JPS60239952A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9542384A JPS60239952A (ja) 1984-05-12 1984-05-12 光メモリ素子の製造方法
US07/328,743 US4917751A (en) 1984-05-11 1989-03-20 Method of producing double sided optical memory disks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9542384A JPS60239952A (ja) 1984-05-12 1984-05-12 光メモリ素子の製造方法

Publications (2)

Publication Number Publication Date
JPS60239952A JPS60239952A (ja) 1985-11-28
JPH0453017B2 true JPH0453017B2 (pm) 1992-08-25

Family

ID=14137283

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9542384A Granted JPS60239952A (ja) 1984-05-11 1984-05-12 光メモリ素子の製造方法

Country Status (1)

Country Link
JP (1) JPS60239952A (pm)

Also Published As

Publication number Publication date
JPS60239952A (ja) 1985-11-28

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term