Multiple layered thin-film magnetic head for magnetic recording

Details Multiple layered thin-film magnetic head for magnetic recording Multiple layered thin-film magnetic head for magnetic recording

1990-07-25

1992-10-13

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

G11B 531

Patent

active

051556464

ABSTRACT:
A thin-film magnetic head for magnetic recording and reproducing apparatus includes a lower insulating layer deposited on a substrate and including a lower magnetic core, an intermediate insulating layer deposited on the lower insulating layer and including front and rear intermediate magnetic cores, and an upper insulating layer deposited on the intermediate insulating layer and including an upper magnetic core. The magnetic cores make up a magnetic circuit which has a magnetic gap defined between the lower magnetic core and the front intermediate magnetic core or between the front intermediate magnetic core and the upper magnetic core. A multiturn coil is embedded in the intermediate insulating layer to surround the rear intermediate magnetic core. The lower, intermediate, and upper insulating layers have respective flat surfaces including respective surfaces of the lower, intermediate, and upper magnetic cores. The lower, intermediate, and upper insulating layers are joined to each other through the flat surfaces.

REFERENCES:
patent: 4860139 (1989-08-01), Hamilton
patent: 4872079 (1989-10-01), Roberts
patent: 4943882 (1990-07-01), Wada et al.
patent: 4970615 (1990-11-01), Gau
patent: 5027246 (1991-06-01), Numazawa et al.

Affiliated with

Also associated with

Rating

Multiple layered thin-film magnetic head for magnetic recording does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple layered thin-film magnetic head for magnetic recording , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple layered thin-film magnetic head for magnetic recording will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1305834