DocumentCode
1055142
Title
High track density thin-film tape heads
Author
Kanai, Kenji ; Kaminaka, Nobwuki ; Nouchi, Orimoto ; Nomura, Noboru ; Hirota, Eiichi
Author_Institution
Matsushita Electric Industrial Company, Ltd., Kadoma, Osaka, Japan.
Volume
15
Issue
4
fYear
1979
fDate
7/1/1979 12:00:00 AM
Firstpage
1130
Lastpage
1134
Abstract
A short review of thin-film write heads, all formed on magnetically flat substrates, is given, and properties of the several types are discussed. A novel structure is proposed to avoid many disadvantages of the former heads. It is formed on a magnetically grooved but physically planar substrate. Measured and calculated characteristics are given for this new configuration for which the name "groove structure" is proposed. The groove structure turns out to be more effective than a magnetically flat substrate. A thin-film write head on the groove structure has 30 (60 as stagger) tracks per quarter inch and a common biasing line effectively to reduce the signal write current.
Keywords
Magnetic recording/reading heads; Coils; Disk recording; Insulation life; Magnetic films; Magnetic heads; Magnetic recording; Protection; Substrates; Telecommunications; Transistors;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1979.1145877
Filename
1145877
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