JPS52149104A - Preparation of magnetic disc with high recording density - Google Patents

Preparation of magnetic disc with high recording density

Info

Publication number
JPS52149104A
JPS52149104A JP6554576A JP6554576A JPS52149104A JP S52149104 A JPS52149104 A JP S52149104A JP 6554576 A JP6554576 A JP 6554576A JP 6554576 A JP6554576 A JP 6554576A JP S52149104 A JPS52149104 A JP S52149104A
Authority
JP
Japan
Prior art keywords
magnetic disc
preparation
recording density
high recording
priming
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
JP6554576A
Other languages
Japanese (ja)
Inventor
Kenji Nakamura
Yoshiyuki Tsujita
Yoshio Nakagawa
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 JP6554576A priority Critical patent/JPS52149104A/en
Publication of JPS52149104A publication Critical patent/JPS52149104A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To provide a magnetic disc having a high quality priming plated film by a method, which comprises electroplating a metal for priming on the surface of a substrate for magnetic disc provided with an obstructing board thereon and subjecting the swelled portions at internal or external circumfrential edges to electrolytic etching to be dissolved away, followed by mechanical polishing.
COPYRIGHT: (C)1977,JPO&Japio
JP6554576A 1976-06-07 1976-06-07 Preparation of magnetic disc with high recording density Pending JPS52149104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6554576A JPS52149104A (en) 1976-06-07 1976-06-07 Preparation of magnetic disc with high recording density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6554576A JPS52149104A (en) 1976-06-07 1976-06-07 Preparation of magnetic disc with high recording density

Publications (1)

Publication Number Publication Date
JPS52149104A true JPS52149104A (en) 1977-12-12

Family

ID=13290083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6554576A Pending JPS52149104A (en) 1976-06-07 1976-06-07 Preparation of magnetic disc with high recording density

Country Status (1)

Country Link
JP (1) JPS52149104A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155700A (en) * 1983-08-29 1985-08-15 ダイナミツク、デイスク、インコ−ポレイテツド Apparatus and method for adhering magnetic layer to substrate
JP2009289299A (en) * 2008-05-27 2009-12-10 Fuji Electric Device Technology Co Ltd Cleaning method of aluminum substrate for magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155700A (en) * 1983-08-29 1985-08-15 ダイナミツク、デイスク、インコ−ポレイテツド Apparatus and method for adhering magnetic layer to substrate
JP2009289299A (en) * 2008-05-27 2009-12-10 Fuji Electric Device Technology Co Ltd Cleaning method of aluminum substrate for magnetic recording medium

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