JPS5755546A - Reproducing stylus of video disk - Google Patents

Reproducing stylus of video disk

Info

Publication number
JPS5755546A
JPS5755546A JP12934080A JP12934080A JPS5755546A JP S5755546 A JPS5755546 A JP S5755546A JP 12934080 A JP12934080 A JP 12934080A JP 12934080 A JP12934080 A JP 12934080A JP S5755546 A JPS5755546 A JP S5755546A
Authority
JP
Japan
Prior art keywords
reproducing stylus
video disk
thin film
film
way
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
JP12934080A
Other languages
Japanese (ja)
Inventor
Yoshitsugu Miura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12934080A priority Critical patent/JPS5755546A/en
Publication of JPS5755546A publication Critical patent/JPS5755546A/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
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07—Heads for reproducing capacitive information
    • G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To obtain a reproducing stylus having a long lifetime and the mass productivity for an electromagnetic capacitance type video disk, by forming a wear resistant thin film made of BN, etc. on a substrate of the reproducing stylus and then an electrode on the thin film and accordingly eliminating the mechanical grinding process. CONSTITUTION:A thin film 6 excellent in the wear resistance which is made of one of BN, SiC and diamond is formed on a support substrate 5 made of glass, etc. The wear resistance is held by the film 6 itself for a reproducing stylus. Then an electrode 8 is formed lengthwise on the film 6. In such a way, the greater part of the manufacturing process can be carried out in the same way as the process for the wafer in the producing process of an IC. As a result, the mechanical grinding process can be eliminated to increase the yield. In such a way, a reproducing stylus having a long lifetime and high mass productivity can be obtained for an electrostatic capacitance type video disk.
JP12934080A 1980-09-19 1980-09-19 Reproducing stylus of video disk Pending JPS5755546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12934080A JPS5755546A (en) 1980-09-19 1980-09-19 Reproducing stylus of video disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12934080A JPS5755546A (en) 1980-09-19 1980-09-19 Reproducing stylus of video disk

Publications (1)

Publication Number Publication Date
JPS5755546A true JPS5755546A (en) 1982-04-02

Family

ID=15007181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12934080A Pending JPS5755546A (en) 1980-09-19 1980-09-19 Reproducing stylus of video disk

Country Status (1)

Country Link
JP (1) JPS5755546A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59192438A (en) * 1983-04-13 1984-10-31 Toppan Printing Co Ltd Fixed position stopping method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59192438A (en) * 1983-04-13 1984-10-31 Toppan Printing Co Ltd Fixed position stopping method

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