JPS6478416A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS6478416A
JPS6478416A JP23603787A JP23603787A JPS6478416A JP S6478416 A JPS6478416 A JP S6478416A JP 23603787 A JP23603787 A JP 23603787A JP 23603787 A JP23603787 A JP 23603787A JP S6478416 A JPS6478416 A JP S6478416A
Authority
JP
Japan
Prior art keywords
magnetic layer
face part
concn
oxygen
intra
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
JP23603787A
Other languages
Japanese (ja)
Inventor
Noboru Isoe
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell 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 Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP23603787A priority Critical patent/JPS6478416A/en
Publication of JPS6478416A publication Critical patent/JPS6478416A/en
Pending legal-status Critical Current

Links

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  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To improve corrosion resistance by oxidizing the end face part or near the end face part of a magnetic layer to form an oxygen concn. distribution in which the concn. of the oxygen contained in the magnetic layer is maximized in the end face part or near the end face part of the magnetic layer and decreases gradually in the intra-surface direction of the magnetic layer. CONSTITUTION:The thin ferromagnetic metallic film formed directly or via an underlying layer on a nonmagnetic substrate 2 is used as the magnetic layer 1. The end face part or near the end face part of the magnetic layer 1 is subjected to the oxidizing treatment to form the oxygen concn. distribution in which the concn. of the oxygen contained in the magnetic layer 1 is max. in the end face part or near the end face part of the magnetic layer 1 and decreases gradually in the intra-surface direction of the magnetic layer 1. The oxide consisting of at least one kind among the trivalent or higher oxides and hydrous oxides of the elements constituting the magnetic layer 1 is formed in the end face part or near the end face part of the magnetic layer 1. The corrosion resistance is thereby improved.
JP23603787A 1987-09-19 1987-09-19 Magnetic recording medium Pending JPS6478416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23603787A JPS6478416A (en) 1987-09-19 1987-09-19 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23603787A JPS6478416A (en) 1987-09-19 1987-09-19 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6478416A true JPS6478416A (en) 1989-03-23

Family

ID=16994826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23603787A Pending JPS6478416A (en) 1987-09-19 1987-09-19 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6478416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100765266B1 (en) * 2006-12-06 2007-10-09 삼성전자주식회사 Fan packaging unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100765266B1 (en) * 2006-12-06 2007-10-09 삼성전자주식회사 Fan packaging unit

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