[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5661047A - Memory medium - Google Patents

Memory medium

Info

Publication number
JPS5661047A
JPS5661047A JP13527279A JP13527279A JPS5661047A JP S5661047 A JPS5661047 A JP S5661047A JP 13527279 A JP13527279 A JP 13527279A JP 13527279 A JP13527279 A JP 13527279A JP S5661047 A JPS5661047 A JP S5661047A
Authority
JP
Japan
Prior art keywords
grooves
layer
forming
memory medium
track guide
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
JP13527279A
Other languages
Japanese (ja)
Inventor
Shuzo Fukunishi
Susumu Yonezawa
Manabu Yamamoto
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP13527279A priority Critical patent/JPS5661047A/en
Publication of JPS5661047A publication Critical patent/JPS5661047A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To obtain a laser beam memory excellent in the S/N, by forming a reflection layer on a base providing grooves for track guide and forming an information recording layer on it after burrying the grooves into a flat plane. CONSTITUTION:On a resin disc (base) 1 providing track guide grooves 2, Al is vacuum-deposited to form an Al thin film reflecting layer 3. Next, the grooves 2 are burried by coating liquid plastic to form a flat coating layer 4 with curing, and a recording layer 5 is formed with the vacuum deposition of a material of low melting point and heat transfer factor (e.g., amorphous As-Te alloy) to form a memory medium 6.
JP13527279A 1979-10-22 1979-10-22 Memory medium Pending JPS5661047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13527279A JPS5661047A (en) 1979-10-22 1979-10-22 Memory medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13527279A JPS5661047A (en) 1979-10-22 1979-10-22 Memory medium

Publications (1)

Publication Number Publication Date
JPS5661047A true JPS5661047A (en) 1981-05-26

Family

ID=15147817

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13527279A Pending JPS5661047A (en) 1979-10-22 1979-10-22 Memory medium

Country Status (1)

Country Link
JP (1) JPS5661047A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786139A (en) * 1980-09-25 1982-05-29 Rca Corp Optical recording medium
EP0061584A1 (en) * 1981-03-24 1982-10-06 Kabushiki Kaisha Toshiba Pregrooved optical-disk
JPS58173035U (en) * 1982-05-14 1983-11-18 日本コロムビア株式会社 optical recording medium
JPS58199451A (en) * 1982-05-14 1983-11-19 Nippon Columbia Co Ltd Manufacture of optical information recording medium
WO1983004330A1 (en) * 1982-05-25 1983-12-08 Burroughs Corporation Heat-sensitive optical recording medium
JPS5911552A (en) * 1982-07-09 1984-01-21 Matsushita Electric Ind Co Ltd Recording carrier
JPS6190342A (en) * 1984-10-08 1986-05-08 Ricoh Co Ltd Optical information storage medium
JPS6252739A (en) * 1985-09-02 1987-03-07 Canon Inc Optical recording medium

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786139A (en) * 1980-09-25 1982-05-29 Rca Corp Optical recording medium
JPH0427614B2 (en) * 1980-09-25 1992-05-12 Rca Corp
EP0061584A1 (en) * 1981-03-24 1982-10-06 Kabushiki Kaisha Toshiba Pregrooved optical-disk
JPS58173035U (en) * 1982-05-14 1983-11-18 日本コロムビア株式会社 optical recording medium
JPS58199451A (en) * 1982-05-14 1983-11-19 Nippon Columbia Co Ltd Manufacture of optical information recording medium
WO1983004330A1 (en) * 1982-05-25 1983-12-08 Burroughs Corporation Heat-sensitive optical recording medium
JPS5911552A (en) * 1982-07-09 1984-01-21 Matsushita Electric Ind Co Ltd Recording carrier
JPS6190342A (en) * 1984-10-08 1986-05-08 Ricoh Co Ltd Optical information storage medium
JPS6252739A (en) * 1985-09-02 1987-03-07 Canon Inc Optical recording medium

Similar Documents

Publication Publication Date Title
GB1520235A (en) Optical signal storage discs
JPS6459651A (en) Recording element including one writing amorphous thin film optical recording layer
JPS57158047A (en) Optical information recording medium
JPS5740768A (en) Photomagnetic layered recording medium
JPS5661047A (en) Memory medium
JPS5586787A (en) Laser recording film
JPS5766538A (en) Information storage medium
JPS5690438A (en) Optical recording medium
JPS5766549A (en) Magnetooptical storage element
GB1147531A (en) Improvements in or relating to methods of recording items of information
JPS5661032A (en) Optical magnetic recording medium
FR2435779A1 (en) Optical recording part for laser recording and read=out system - has heat-insulating film between plastics substrate and recording layer to increase speed
JPS57212642A (en) Recording medium
JPS6427049A (en) Optical disk, substrate for optical disk and its production
JPS52115202A (en) Recording member for information
JPS5782094A (en) Optical information recording medium
US4617601A (en) Magneto-optical recording medium having recording guide tracks
JPS56143547A (en) Magnetooptical storage disk
JPS5661031A (en) Optical magnetic recording medium
JPS56148749A (en) Optical thin-film video disk
JPS57183647A (en) Magentrooptical storage element
JPS57169945A (en) Optical magnetic disc
JPS5782093A (en) Optical information recording medium
JPS5766547A (en) Manufacture of base disk for information storage medium
JPS644935A (en) Information recording medium