Method of processing workpiece with amorphous NI-P
US5863609A · kind A · utility
5Cited by
10References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1996 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Aug 13, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/8404
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A workpiece is processed by abrading a surface of its amorphous coat layer (12) over a substrate (10) such that Ni particles (13) and crystallized compounds (14) of Ni and P are produced locally and only on the surface of the coat layer (12) and along grooves (17) formed by abrading. Mechanical strength and anti-corrosive property of the coat layer can thus be maintained, and ferromagnetic materials can be affixed thereon and can be magnetized in a desired direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.