Differential-permeability field-concentrating magnetic read/writ

Details Differential-permeability field-concentrating magnetic read/writ Differential-permeability field-concentrating magnetic read/writ

1983-03-07

1985-01-15

Tarcza, Thomas H.

Recorders

Magnetographic

Magnetographic head

G01D 1512

Patent

active

044941250

ABSTRACT:
A magnetic-image read/write head including inner and outer, substantially co-planar, symmetrically arranged pole portions. In one embodiment, the head is disclosed with the inner pole portion presenting a substantially full-circular facial expanse, and with the outer pole portion presenting an annular facial expanse surrounding that of the inner pole portion. In another embodiment, each of the two pole portions presents a substantially annular facial expanse with the inner pole being hollow. In both embodiments, the inner pole portion has a magnetic permeability which is significantly lower than that of the outer pole portion. An image unit written on a magnetic-image-storage medium by the head takes the form, generally, of a dot characterized by an appreciably larger magnetic field intensity adjacent its perimeter than inside the perimeter.

REFERENCES:
patent: 4219854 (1980-08-01), Church et al.
patent: 4414554 (1983-11-01), Springer

Affiliated with

Also associated with

Rating

Differential-permeability field-concentrating magnetic read/writ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential-permeability field-concentrating magnetic read/writ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential-permeability field-concentrating magnetic read/writ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1484039