Process for preparing magnetic disk

Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating predominantly nonmetal substrate

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

427129, 205223, C25D 1120, B05D 502, B05D 508

Patent

active

052098370

ABSTRACT:
This invention relates to a process for preparing a magnetic disk, which comprises (a) subjecting a substrate having an anodized aluminum film to mirror surface-finishing, (b) widening pores of the anodized aluminum film by chemical dissolution treatment so that the total area of pores becomes from 20 to 80% of the entire surface area, thereby retaining crystalline alumina of the anodized aluminum film extruded after the chemical dissolution treatment, and (c) coating the resultant substrate with a magnetic continuous thin film.

REFERENCES:
patent: 4631112 (1986-12-01), Usui et al.
patent: 4650708 (1987-03-01), Takahashi
patent: 4659606 (1987-04-01), Wada et al.
patent: 4761330 (1988-08-01), Tokoshima et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for preparing magnetic disk does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing magnetic disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing magnetic disk will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1348050

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.