Magnetic recording and reproducing system and magnetic...

Details Magnetic recording and reproducing system and magnetic... Magnetic recording and reproducing system and magnetic...

2006-02-14

2006-02-14

Faber, Alan T. (Department: 2651)

Dynamic magnetic information storage or retrieval

Recording for selective retention of a special occurrence

C360S131000

Reexamination Certificate

active

06999255

ABSTRACT:
A magnetic recording and reproducing system, including recording a signal on a magnetic recording medium by an inductive head and reproducing the signal by a magneto resistance head. The gap length of the inductive head is 0.3 μm or less. The maximum particle diameter of ferromagnetic powder is from 1/10 to ½ of the gap length, the minimum particle diameter of the powder is from 1/100 to ⅕ of the gap length, and the thickness of a magnetic layer is from 1/10 to ½ of the gap length. The average particle size of the powder is from 10 to 35 nm, the tabular ratio is from 2 to 6, the squareness ratio of in-plane of the magnetic layer is from 0.5 to 0.9 in the longitudinal direction, and from 0.2 to 0.6 in the thickness direction, and the thickness of the magnetic layer is from 0.01 to 0.2 μm.

REFERENCES:
patent: 4895758 (1990-01-01), Sakemoto et al.
patent: 6017605 (2000-01-01), Yamazaki et al.
patent: 6497948 (2002-12-01), Ejiri et al.
patent: 6713149 (2004-03-01), Harasawa et al.
patent: 2001-67649 (2001-03-01), None

Affiliated with

Also associated with

Rating

Magnetic recording and reproducing system and magnetic... 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 and magnetic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic recording and reproducing system and magnetic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3682617