JPS5514512A - Information recording plate and its manufacture - Google Patents

Information recording plate and its manufacture

Info

Publication number
JPS5514512A
JPS5514512A JP8635878A JP8635878A JPS5514512A JP S5514512 A JPS5514512 A JP S5514512A JP 8635878 A JP8635878 A JP 8635878A JP 8635878 A JP8635878 A JP 8635878A JP S5514512 A JPS5514512 A JP S5514512A
Authority
JP
Japan
Prior art keywords
film
pit
information recording
information
entire surface
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.)
Granted
Application number
JP8635878A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6118815B2 (enrdf_load_stackoverflow
Inventor
Taiji Tsunoda
Takashi Nishio
Yoshiki Tanigawa
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP8635878A priority Critical patent/JPS5514512A/ja
Publication of JPS5514512A publication Critical patent/JPS5514512A/ja
Priority to US06/273,999 priority patent/US4408319A/en
Publication of JPS6118815B2 publication Critical patent/JPS6118815B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP8635878A 1978-07-15 1978-07-15 Information recording plate and its manufacture Granted JPS5514512A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8635878A JPS5514512A (en) 1978-07-15 1978-07-15 Information recording plate and its manufacture
US06/273,999 US4408319A (en) 1978-07-15 1981-06-15 Optical information recording mother disc and method of producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8635878A JPS5514512A (en) 1978-07-15 1978-07-15 Information recording plate and its manufacture

Publications (2)

Publication Number Publication Date
JPS5514512A true JPS5514512A (en) 1980-02-01
JPS6118815B2 JPS6118815B2 (enrdf_load_stackoverflow) 1986-05-14

Family

ID=13884661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8635878A Granted JPS5514512A (en) 1978-07-15 1978-07-15 Information recording plate and its manufacture

Country Status (1)

Country Link
JP (1) JPS5514512A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6328614A (ja) * 1986-07-22 1988-02-06 Kobe Steel Ltd 樹脂成形用プレスのスライド制御方法

Also Published As

Publication number Publication date
JPS6118815B2 (enrdf_load_stackoverflow) 1986-05-14

Similar Documents

Publication Publication Date Title
JPS5690438A (en) Optical recording medium
JPS5514512A (en) Information recording plate and its manufacture
JPS5661047A (en) Memory medium
JPS5730130A (en) Production of abrasive-dish original disk with groove for video disk stylus
JPS5720961A (en) Magnetic head assembly
JPS5514511A (en) Information recording plate and its manufacture
JPS5423506A (en) Production of magnetic recording media
JPS54134603A (en) Production of information recording medium
JPS56165933A (en) Production of magnetic recording body
JPS5342009A (en) Preparation of magnetic recording medium
JPS56154087A (en) Medium for optical recording
JPS5512572A (en) Manufacture for carrier for information recording
JPS5680831A (en) Producing device for magnetic recording medium
JPS56148749A (en) Optical thin-film video disk
JPS5724025A (en) Magnetic recording substance
JPS54118205A (en) Infomration recording disc
JPS5766547A (en) Manufacture of base disk for information storage medium
JPS57152998A (en) Optical recording medium
JPS56145527A (en) Production of magnetic recording medium
JPS5712423A (en) Production of magnetic recorder
JPS5271202A (en) Production of original disc of information recording media
JPS6446221A (en) Magnetic disk
JPS5419200A (en) Magnetic recording medium process
JPS5397983A (en) Controlling method and apparatus for thickness of vacuum deposited film
JPS5798325A (en) Disk record and duplication thereof