Ferromagnetic recording materials

Details Ferromagnetic recording materials Ferromagnetic recording materials

1982-04-19

1987-04-14

Morgenstern, Norman

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

252 6256, 427132, 427215, 4274191, 4274344, 428693, 428694, 428900, B05D 512

Patent

active

046578161

ABSTRACT:
Low performance ferromagnetic oxides are taught to be convertible into high performance ferromagnetic oxides with vastly improved coercivity by suspending ferromagnetic oxide particles in aqueous media, forming a layer of the first metal on the surfaces of the particles, forming a layer of second metal on the surfaces of the first metal and lastly, forming a layer of third metal on the surfaces of the second metal. The first and third metals can be the same in preferably transition metals such as cobalt. The second metal must be different than the first and third metals such as, for example, iron.

REFERENCES:
patent: 3770500 (1973-11-01), Imaoka et al.
patent: 3958068 (1976-05-01), Umeki et al.
patent: 3977985 (1976-08-01), Umeki et al.
patent: 4010310 (1977-03-01), Kubota et al.
patent: 4064292 (1977-12-01), Schoenafinger et al.
patent: 4066564 (1978-01-01), Sasazawa et al.
patent: 4066565 (1978-01-01), Sasazawa et al.
patent: 4067755 (1978-01-01), Umeki et al.
patent: 4069367 (1978-01-01), Umeki et al.
patent: 4125474 (1978-11-01), Dezawa et al.
patent: 4188302 (1980-02-01), Becker et al.
patent: 4200680 (1980-04-01), Sasazawa et al.
patent: 4224175 (1980-09-01), Montino et al.
patent: 4226909 (1980-10-01), Kanten
patent: 4267207 (1981-05-01), Sasazawa et al.

Affiliated with

Also associated with

Rating

Ferromagnetic recording materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ferromagnetic recording materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ferromagnetic recording materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1784951