JPS6446248A - Magneto-optical recording medium cartridge - Google Patents

Magneto-optical recording medium cartridge

Info

Publication number
JPS6446248A
JPS6446248A JP62201447A JP20144787A JPS6446248A JP S6446248 A JPS6446248 A JP S6446248A JP 62201447 A JP62201447 A JP 62201447A JP 20144787 A JP20144787 A JP 20144787A JP S6446248 A JPS6446248 A JP S6446248A
Authority
JP
Japan
Prior art keywords
medium
magnetic flux
external magnetic
impressing
recording 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.)
Pending
Application number
JP62201447A
Other languages
Japanese (ja)
Inventor
Hiroyuki Matsumoto
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.)
Nikon Corp
Original Assignee
Nikon 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 Nikon Corp filed Critical Nikon Corp
Priority to JP62201447A priority Critical patent/JPS6446248A/en
Publication of JPS6446248A publication Critical patent/JPS6446248A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To eliminate the need of a means to move an external magnetic field impressing means near a medium or to move the means away the medium, by providing a magnetic flux inducing member consisting of a high permeable substance at one part of the titled cartridge main body, and intensively impressing the magnetic flux from the external magnetic field through the member to the medium. CONSTITUTION:A magnetic flux concentrating member 12 here consists of 'Permalloy(R)' (high permeable material) with an approximately triangular cross section, and two members 12 approximate to a magneto-optical recording medium 20 and are arranged so as to sandwich the recording medium 20 in upper and lower directions. Since the magnetic flux inducing member 12 consisting of the high permeable material is provided at one part of a cartridge main body 11, the magnetic flux from the external magnetic field impressing means is not diffused, is induced by the member 12, and as the result, even when the external magnetic flux impressing means is far separated from a medium 20 surface, magnetic force to reach the medium 20 surface is increased. Thus, without making the external magnetic area impressing means approach the cartridge by opening one part of the cartridge, the sufficient magnetic area can be impressed to the medium 20.
JP62201447A 1987-08-12 1987-08-12 Magneto-optical recording medium cartridge Pending JPS6446248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62201447A JPS6446248A (en) 1987-08-12 1987-08-12 Magneto-optical recording medium cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62201447A JPS6446248A (en) 1987-08-12 1987-08-12 Magneto-optical recording medium cartridge

Publications (1)

Publication Number Publication Date
JPS6446248A true JPS6446248A (en) 1989-02-20

Family

ID=16441239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62201447A Pending JPS6446248A (en) 1987-08-12 1987-08-12 Magneto-optical recording medium cartridge

Country Status (1)

Country Link
JP (1) JPS6446248A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206844A (en) * 1990-09-07 1993-04-27 Nikon Corporation Magnetooptic recording medium cartridge for two-sided overwriting

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61148687A (en) * 1984-12-20 1986-07-07 Fujitsu Ltd Cartridge for photomagnetic disk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61148687A (en) * 1984-12-20 1986-07-07 Fujitsu Ltd Cartridge for photomagnetic disk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206844A (en) * 1990-09-07 1993-04-27 Nikon Corporation Magnetooptic recording medium cartridge for two-sided overwriting

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