Process for producing a magnetic disk having a metal containing hard carbon coating by plasma chemical vapor deposition under a negative self bias
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 4, 1994
Issued Date -
N/A
app pub date -
Sep 4, 1991
filing date -
Apr 20, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic disk comprising a nonmagnetic substrate, a metallic thin film magnetic layer provided on the substrate and a hard carbon protective layer provided on the magnetic layer, the hard carbon protective layer containing at least one metal element of silicon, germanium, tin and lead, or further containing fluorine, formed by bias plasma CVD treatment, has a high attrition resistance, a high peeling resistance and a high crack resistance or further a higher corrosion resistance.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully