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Patent Searching and Data


Title:
STRUCTURE OF MAGNETIC HEAD AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2004118889
Kind Code:
A
Abstract:

To solve such a problem that the wear rate of a track around a magnetic gap is high and the life of a head is extremely short since reinforcing glasses in track control grooves are low-melting glasses with the high wear rate in a conventional technology, as to the magnetic head for recording or reproducing with respect to a magnetic recording medium.

The structure and the manufacturing method of this magnetic head is constituted in such a manner that the reinforcing glasses to be filled in the track control grooves are prepared only around the gaps in the magnetic head having a track groove for forming a track part including a glass reinforcing groove and the track control grooves, and the track control grooves located other than around the gaps are void or glasses having a melting point lower than that of the reinforcing glasses are filled therein, then the magnetic head with the structure having the satisfied interface with the magnetic tape is obtained while a dust, etc., at the recording/reproducing operation are efficiently discharged.


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Inventors:
NINOMIYA SHOZO
MURAOKA SHUNSAKU
Application Number:
JP2002277005A
Publication Date:
April 15, 2004
Filing Date:
September 24, 2002
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G11B5/127; G11B5/187; (IPC1-7): G11B5/187; G11B5/127
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito