Magnetic head with improved supporter for perpendicular magnetiz

Details Magnetic head with improved supporter for perpendicular magnetiz Magnetic head with improved supporter for perpendicular magnetiz

1987-11-30

1989-01-03

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Head

Core

360122, 360127, 360110, G11B 5127, G11B 5187

Patent

active

047961341

ABSTRACT:
In a magnetic head of perpendicular magnetization type having main and sub magnetic poles arranged at both sides of a recording medium, a nonmagnetic supporter holding a high permeability magnetic thin layer of the main magnetic pole is formed by a polycrystalline sintered body substantially composed of titanium carbide and alumina. This polycrystalline sintered product well matches with a recording medium having a cobalt-chromium alloy layer so that the recording medium does not wear for a long time of use, and therefore, so that the contact surface of the main magnetic pole is hardly damaged. The same sintered body may also be used for the sub magnetic pole arranged to be in contact with the recording medium. Some structural improvements are also provided so that undesirable influence due to an adhesive layer adjacent to the magnetic thin layer is removed. One or more additional thin layers may be provided for reducing crosstalk between adjacent tracks. A magnetically shielding block is provided to prevent undesirable influence caused by an external magnetic field.

REFERENCES:
patent: 2549771 (1951-04-01), Camras
patent: 3840898 (1974-10-01), Bajovek et al.
patent: 3860965 (1975-01-01), Soegeli
patent: 3921217 (1975-11-01), Thompson
patent: 3947889 (1976-03-01), Lazzavi
patent: 4036723 (1977-07-01), Schwartz et al.
patent: 4044392 (1977-08-01), Brock et al.
patent: 4052749 (1977-10-01), Nomura
patent: 4107751 (1978-08-01), Shimoda
patent: 4179719 (1979-12-01), Inamura et al.
patent: 4210946 (1980-07-01), Iwasaki et al.
patent: 4214287 (1980-07-01), Stromasta et al.
patent: 4222084 (1980-09-01), Nakayawa et al.
patent: 4225892 (1980-09-01), Bassett et al.
patent: 4246620 (1981-01-01), Kaminaka et al.
patent: 4251841 (1981-02-01), Jacobs
patent: 4298899 (1981-11-01), Argumedo et al.
patent: 4383284 (1983-05-01), Isshiki
patent: 4405960 (1983-09-01), Pick et al.
patent: 4517616 (1985-05-01), Biscloff
patent: 4571653 (1986-02-01), Suzuki et al.
patent: 4575777 (1986-03-01), Hosokawa
patent: 4745509 (1988-05-01), Watanabe et al.
IBM Technical Disclosure Bulletin, vol. 13, No. 1, Jun. 1970, pp. 248-249, "Thin Film Magnetic Head".

Affiliated with

Also associated with

Rating

Magnetic head with improved supporter for perpendicular magnetiz 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 with improved supporter for perpendicular magnetiz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic head with improved supporter for perpendicular magnetiz will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2172181