Magnetic recording tape

Details Magnetic recording tape Magnetic recording tape

G - Physics

11

B

352/31.2

G11B 5/62 (2006.01) G11B 5/716 (2006.01)

Patent

CA 1065481

ABSTRACT OF THE DISCLOSURE An improved magnetic recording tape having a dual layer magnetizable coating which provides an improved high frequency response and increased recording sensitivity in the middle and middle-to-high frequency ranges when used in conventional audio recording devices, particularly open reel to reel type recorders operated at a tape speed of 19 cm/sec or 38 cm/sec. The dual magnetizable coatings consist of an inner layer of a ferromagnetic iron oxide powder dispersed in a resinous binder and an upper layer of a mixture of ferromagnetic powders in a resinous binder, the mixture including at least ferro- magnetic chromium dioxide powder and a ferromagnetic iron oxide powder, both layers having a controlled thickness, controlled coercive force and controlled saturation residual flux density. The weight ratio of the ferromagnetic iron oxide to the chromium dioxide in the upper layer is from 1:4 and 4:1, each of the magnetic powders in said mix- ture having coercive force values within specific ranges. -i-

233765

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-108343