JPS5378807A - Magnetic recorder and preparation thereof - Google Patents

Magnetic recorder and preparation thereof

Info

Publication number
JPS5378807A
JPS5378807A JP15538376A JP15538376A JPS5378807A JP S5378807 A JPS5378807 A JP S5378807A JP 15538376 A JP15538376 A JP 15538376A JP 15538376 A JP15538376 A JP 15538376A JP S5378807 A JPS5378807 A JP S5378807A
Authority
JP
Japan
Prior art keywords
magnetic
preparation
magnetic recorder
thin film
film medium
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
JP15538376A
Other languages
Japanese (ja)
Other versions
JPS5938649B2 (en
Inventor
Masahiro Yanagisawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15538376A priority Critical patent/JPS5938649B2/en
Priority to US05/860,832 priority patent/US4152487A/en
Priority to DE2759817A priority patent/DE2759817C2/en
Priority to DE2756254A priority patent/DE2756254C3/en
Priority to DE2759985A priority patent/DE2759985C2/en
Publication of JPS5378807A publication Critical patent/JPS5378807A/en
Publication of JPS5938649B2 publication Critical patent/JPS5938649B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To protect sufficiently metallic magnetic thin film medium even for recording-playback magnetic head which is prone to absorb dust by providing double or more coatings of polysilicate on a metallic magnetic thin film medium such as of magnetic disc or magnetic drum.
COPYRIGHT: (C)1978,JPO&Japio
JP15538376A 1976-12-17 1976-12-22 Magnetic memory and its manufacturing method Expired JPS5938649B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP15538376A JPS5938649B2 (en) 1976-12-22 1976-12-22 Magnetic memory and its manufacturing method
US05/860,832 US4152487A (en) 1976-12-17 1977-12-15 Magnetic record member
DE2759817A DE2759817C2 (en) 1976-12-17 1977-12-16 Magnetic recording element
DE2756254A DE2756254C3 (en) 1976-12-17 1977-12-16 Magnetic recording element
DE2759985A DE2759985C2 (en) 1976-12-17 1977-12-16 Magnetic recording element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15538376A JPS5938649B2 (en) 1976-12-22 1976-12-22 Magnetic memory and its manufacturing method

Publications (2)

Publication Number Publication Date
JPS5378807A true JPS5378807A (en) 1978-07-12
JPS5938649B2 JPS5938649B2 (en) 1984-09-18

Family

ID=15604736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15538376A Expired JPS5938649B2 (en) 1976-12-17 1976-12-22 Magnetic memory and its manufacturing method

Country Status (1)

Country Link
JP (1) JPS5938649B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56124130A (en) * 1980-03-04 1981-09-29 Hitachi Maxell Ltd Magnetic recording medium
JPS56159840A (en) * 1980-05-14 1981-12-09 Hitachi Maxell Ltd Magnetic recording medium
JPS59135628A (en) * 1983-01-21 1984-08-03 Ulvac Corp Wear resistant magnetic recording body
JPS6032126A (en) * 1983-08-02 1985-02-19 Hitachi Condenser Co Ltd Production of magnetic recording medium

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56124130A (en) * 1980-03-04 1981-09-29 Hitachi Maxell Ltd Magnetic recording medium
JPH0447373B2 (en) * 1980-03-04 1992-08-03 Hitachi Maxell
JPS56159840A (en) * 1980-05-14 1981-12-09 Hitachi Maxell Ltd Magnetic recording medium
JPH0245244B2 (en) * 1980-05-14 1990-10-08 Hitachi Maxell
JPS59135628A (en) * 1983-01-21 1984-08-03 Ulvac Corp Wear resistant magnetic recording body
JPH0157416B2 (en) * 1983-01-21 1989-12-05 Ulvac Corp
JPS6032126A (en) * 1983-08-02 1985-02-19 Hitachi Condenser Co Ltd Production of magnetic recording medium

Also Published As

Publication number Publication date
JPS5938649B2 (en) 1984-09-18

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