Dynamic magnetic information storage or retrieval – Head – Gap spacer
Patent
1985-04-19
1988-03-15
Hecker, Stuart N.
Dynamic magnetic information storage or retrieval
Head
Gap spacer
360122, 360125, G11B 5127, G11B 5133
Patent
active
047316837
ABSTRACT:
The invention discloses a magnetic recording and reproducing system using a composite magnetic head whose surface facing a magnetic recording medium is composed primarily of a ferromagnetic metal and a high permeability ferrite single crystal, and which has a region close to a gap and composed of the ferromagnetic metal, wherein the composite magnetic head is arranged in such a fashion that the {110} plane of the high permeability ferrite single crystal is made to substantially coincide with a plane forming a principal magnetic circuit of the composite magnetic head, that the <100> direction lying inside the {110} plane is inclined at an angle of from 15.degree. to 75.degree. with respect to a direction perpendicular to the surface facing the magnetic recording medium, and that the magnetic recording medium travels in a direction which is relatively the same as, and parallel to, a vector formed by projecting a vector extending from the inside to the outside of the surface facing the magnetic recording medium in the <100> direction, on the surface facing the magnetic recording medium. This magnetic recording and reproducing system can remarkably reduce the step occurring on the surface facing the magnetic recording medium due to wear caused by the travel of the recording medium, and can reduce any output deterioration and fluctuation resulting from the step.
REFERENCES:
patent: 3810245 (1974-05-01), Ozawa et al.
patent: 3931642 (1976-01-01), Kujimiya et al.
patent: 4079430 (1978-03-01), Fujishima et al.
patent: 4161005 (1979-07-01), Kato et al.
patent: 4246619 (1981-01-01), Hirai et al.
patent: 4439794 (1984-03-01), Shiroshi et al.
patent: 4571652 (1986-02-01), Fujiwara et al.
patent: 4590530 (1986-05-01), Sakakima
patent: 4604670 (1986-08-01), Visser
Patent Abstracts of Japan, vol. 6, No. 129, 7-15-82; (P-128), [1007]; and JP-A-57 53 814, (Tokyo Shibaura Denki K.K.).
Patent Abstracts of Japan, vol. 7, No. 2, (P-166), [1147], 1-7-1983; and JP-A-57 162 116 (Hitachi Seisakusho K.K.).
Kobayashi Takayuki
Kudo Mitsuhiro
Kumasaka Noriyuki
Morikawa Juichi
Otomo Shigekazu
Bowler Alyssa H.
Hecker Stuart N.
Hitachi , Ltd.
LandOfFree
Magnetic recording and reproducing system with composite magneti 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 recording and reproducing system with composite magneti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording and reproducing system with composite magneti will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1929362