INDUCTIVE/MR COMPOSITE TYPE THIN FILM MAGNETIC HEAD

INDUCTIVE/MR COMPOSITE TYPE THIN FILM MAGNETIC HEAD

PROBLEM TO BE SOLVED: To perform a high speed and high density recording by providing a specified relation with respect to a distance between connection parts of upper/lower magnetic poles and upper/lower magnetic films opposite to each other with a data transfer rate of a thin film magnetic head. S...

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Hauptverfasser: HIGAMI FUMINORI, KOMAKI KENJI, TAKAGISHI MASAYUKI
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator HIGAMI FUMINORI
KOMAKI KENJI
TAKAGISHI MASAYUKI
description PROBLEM TO BE SOLVED: To perform a high speed and high density recording by providing a specified relation with respect to a distance between connection parts of upper/lower magnetic poles and upper/lower magnetic films opposite to each other with a data transfer rate of a thin film magnetic head. SOLUTION: In a composite type thin film magnetic head laminated with a magnetic gap film 7 for forming a magnetic gap, organic insulation layers 8, 9, a conductor coil 10 and the upper part magnetic film 11 on an upper shield 4 sharing with the lower part magnetic film, when a required data transfer rate is defined as X (Mbit/sec), the length of the yoke part of the upper part magnetic film, that is, the distance L(μm) between the connection parts of the upper/lower magnetic poles and upper/lower magnetic films opposite to each other is set to L
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SOLUTION: In a composite type thin film magnetic head laminated with a magnetic gap film 7 for forming a magnetic gap, organic insulation layers 8, 9, a conductor coil 10 and the upper part magnetic film 11 on an upper shield 4 sharing with the lower part magnetic film, when a required data transfer rate is defined as X (Mbit/sec), the length of the yoke part of the upper part magnetic film, that is, the distance L(μm) between the connection parts of the upper/lower magnetic poles and upper/lower magnetic films opposite to each other is set to L&lt;8400/X. 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In such a manner, by shortening the distance L, an effect of an eddy current loss in the yoke part is reduced according to that, and a delay of a high frequency component of a magnetic field in the upper/ lower magnetic poles opposite to each other through the magnetic gap 7 on the tips of the upper/lower magnetic films is reduced.</description><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1998</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDD29HMJdQ7xDHPV9w1ScPb3DfAP9gxxVQiJDAASHp5-Cm6ePr4Kvo7ufq4hns4KHq6OLjwMrGmJOcWpvFCam0HRzTXE2UM3tSA_PrW4IDE5NS-1JN4rwMPQwNDE2MLIwNGYGDUAoLcnJQ</recordid><startdate>19980529</startdate><enddate>19980529</enddate><creator>HIGAMI FUMINORI</creator><creator>KOMAKI KENJI</creator><creator>TAKAGISHI MASAYUKI</creator><scope>EVB</scope></search><sort><creationdate>19980529</creationdate><title>INDUCTIVE/MR COMPOSITE TYPE THIN FILM MAGNETIC HEAD</title><author>HIGAMI FUMINORI ; KOMAKI KENJI ; TAKAGISHI MASAYUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH10143820A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1998</creationdate><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>HIGAMI FUMINORI</creatorcontrib><creatorcontrib>KOMAKI KENJI</creatorcontrib><creatorcontrib>TAKAGISHI MASAYUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HIGAMI FUMINORI</au><au>KOMAKI KENJI</au><au>TAKAGISHI MASAYUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>INDUCTIVE/MR COMPOSITE TYPE THIN FILM MAGNETIC HEAD</title><date>1998-05-29</date><risdate>1998</risdate><abstract>PROBLEM TO BE SOLVED: To perform a high speed and high density recording by providing a specified relation with respect to a distance between connection parts of upper/lower magnetic poles and upper/lower magnetic films opposite to each other with a data transfer rate of a thin film magnetic head. 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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title INDUCTIVE/MR COMPOSITE TYPE THIN FILM MAGNETIC HEAD
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