Erasing head

Details Erasing head Erasing head

1985-09-23

1987-11-10

Heinz, S. J.

Dynamic magnetic information storage or retrieval

Head

Erase

360122, G11B 5127

Patent

active

047061456

ABSTRACT:
An erasing head for magnetic recording medium by magnetizing said recording medium with a permanent magnet is improved by a ferrite head body having a slider plane wider than a track to be erased, and, a magnetic metal thin film covering said slider plane. Said magnetic thin film solves the problem caused by undesired natural magnetization of a permanent magnet, so as to improve the erase ratio and S/N ratio, and the use of slider plane wider than that of a track simplifies producing process of the head since no step is provided between the track to be erased and neighboring track, and no polishing process for smoothing said step is required.

REFERENCES:
patent: 3772471 (1973-11-01), Imai
patent: 4320427 (1982-03-01), Bogen

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1071584