Method for forming ferrite film
US4837046A · kind A · utility
15Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1987 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Aug 7, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/858
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for forming a ferrite film comprising, flowing downward or spraying an aqueous oxidizing agent solution on a substrate in a deoxidized atmosphere and simultaneously supplying an aqueous deoxidized solution containing at least ferrous ions, to effect a ferrite crystallization reaction on the substrate. This ferrite film is used for magnetic recording media, photomagnetic recording media, magnetic heads, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.