Title:
【発明の名称】浮動型磁気ヘッド
Document Type and Number:
Japanese Patent JPH0719459
Kind Code:
B2
Abstract:
A floating type magnetic head is made of a polycrystalline material. A surface to be opposed to a magnetic recording medium is undulated with lands and grooves having a height difference of 50 to 200 ANGSTROM on an average and a repetition pitch of 5 to 20 microns on an average. The portions, in which the heights of the lands and the grooves abruptly change, extend along the boundaries of the polycrystals. The head surface opposed to the magnetic recording medium is sputter-etched to have the predetermined surface roughness.
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Inventors:
Taguchi Akira
Morita Shigetoshi
Shunichi Taka
Hirohide Yamada
Yoshiaki Takada
Furuichi Shinji
Masahiro Ao
Morita Shigetoshi
Shunichi Taka
Hirohide Yamada
Yoshiaki Takada
Furuichi Shinji
Masahiro Ao
Application Number:
JP29565288A
Publication Date:
March 06, 1995
Filing Date:
November 22, 1988
Export Citation:
Assignee:
Hitachi Metals Co., Ltd.
International Classes:
G11B5/10; G11B5/60; G11B5/187; G11B21/21; (IPC1-7): G11B21/21; G11B5/187
Domestic Patent References:
| JP61151827A | ||||
| JP5866625A | ||||
| JP5480728A |
Attorney, Agent or Firm:
Tsuyoshi Shigeno
Next Patent: CONTROL OF AIR VOLUME IN COMBUSTION DEVICE