Magnetic recording medium and recording/reproducing method

Details Magnetic recording medium and recording/reproducing method Magnetic recording medium and recording/reproducing method

1994-06-10

1997-02-18

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

360 7703, 369 4426, 3692751, 369277, 369288, 428694B, 428694BS, 428694BR, 428694BN, 428900, 428913, G11B 370, G11B 566, G11B 570

Patent

active

056040130

ABSTRACT:
A magnetic recording medium comprising a non-magnetic transparent support, a magnetic layer, and a conductive intermediate layer formed between the non-magnetic transparent support and the magnetic layer, the conductive intermediate layer comprising, as major components, powder of conductive metal or metal compound and a binder resin, wherein:
the binder resin of the intermediate layer contains from 10 to 200 .mu.eq/g of --SO.sub.3 M group, --COOM group, --PO.sub.3 M.sub.2 group, or --NH.sub.3.sup.+ X.sup.- group, where M is a hydrogen atom, an alkali metal atom, or an alkaline earth metal atom, and X is a monovalent anion, and
the ratio of the content of the powder of the conductive metal or metal compound to that of the binder resin, based on weight, in the conductive intermediate layer is from 8 to 13, and a recording/reproducing method.

REFERENCES:
patent: 4528240 (1985-07-01), Miyoshi et al.
patent: 4556597 (1985-12-01), Best et al.
patent: 4684547 (1987-08-01), Distefano et al.
patent: 4863793 (1989-09-01), Ogawa et al.
patent: 4963433 (1990-10-01), Ogawa et al.
Database WPI, Derwent Publications, AN 84-220413/36, DE-A-3 403 822, Aug. 30, 1984, & US-A-4 528 240, Jul. 9, 1985.
Database WPI, Derwent Publications, AN 80-40476C/23, JP-A-55 055 431, Apr. 23, 1980.
Database WPI, Derwent Publications, AN 80-40477C/23, JP-A-55 055 432, Apr. 23, 1980, & JP-B-89 015 930, Mar. 22, 1989.
Database WPI, Derwent Publications, AN 80-55970C/32, JP-A-55 084 040, Jun. 24, 1980, & US-A-4 275 113, Jun. 23, 1981, & JP-B-89 020 488, Apr. 17, 1989.
Database WPI, Derwent Publications, AN 83-786794/41, JP-A-58 150 129, Sep. 6, 1983.
Database WPI, Derwent Publications, AN 91-038217/06, EP-A-411 242, Feb. 6, 1991, & US-A-5 079 096, Jan. 7, 1992.
Database WPI, Derwent Publications, AN 92-280557/34, JP-A-04 192 111, Jul. 10, 1992.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1601153