Magnetic head

Details Magnetic head Magnetic head

1994-09-13

1996-12-17

Resan, Stevan A.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360119, 360120, 360126, 428212, 428323, 428328, 428692, 428900, G11B 5127

Patent

active

055859844

ABSTRACT:
There is disclosed a magnetic head including a magnetic film deposited on a substrate, being characterized in that: the the magnetic film is made of a soft magnetic alloy having an average coefficient of linear thermal expansion in the range from 125.times.10.sup.-7 to 150.times.10.sup.-7 /.degree.C. over the temperature range from room temperature to 600.degree. C., a saturation magnetostriction constant in the range from 0 to +3.times.10.sup.-6, and a mean crystal grain size less than 30 nm; and the portion of the substrate adjacent to the magnetic core has an average coefficient of linear thermal expansion in the range from 115.times.10.sup.-7 to 145.times.10.sup.-7 /.degree.C. over the temperature range from room temperature to 600.degree. C., thereby providing a high permeability, low coercive force, and excellent resistance to corrosion.

REFERENCES:
patent: 4755899 (1988-07-01), Kobayashi et al.
patent: 4894742 (1990-01-01), Saito et al.
patent: 4918555 (1990-04-01), Yoshizawa et al.
patent: 5019190 (1991-05-01), Sawa et al.
patent: 5238507 (1993-08-01), Kugimiya et al.
patent: 5245488 (1993-09-01), Iwamoto et al.
patent: 5252148 (1993-10-01), Shigeta et al.
patent: 5262915 (1993-11-01), Terunuma et al.
patent: 5421915 (1995-06-01), Nakanishi et al.
patent: 5432645 (1995-07-01), Terunuma et al.

Affiliated with

Also associated with

Rating

Magnetic head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1996686