Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same
US5238483A · kind A · utility
1Cited by
15References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1992 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Jul 29, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/70615
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are acicular magnetic iron based alloy particles for magnetic recording, containing 1.5 to 10 mol % of B based on Fe (calculated as B) and 1.5 to 10 mol % of Co based on Fe (calculated as Co) in the vicinity of the surfaces of said particles and having a saturation magnetization of not less than 125 emu/g and an S.F.D. value of not more than 0.50, and a process for producing the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.