Magnetic composite particles for magnetic recording medium, process for producing the same and magnetic recording medium the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Nov 5, 2002
filing date -
Jun 24, 1999
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Magnetic composite particles of the present invention comprise: magnetic particles as core particles having an average particle size of 0.01 to 0.3 .mu.m; and inorganic fine particles having an average particle size of 0.001 to 0.07 .mu.m, which are present on the surface of each magnetic, and comprise at least one inorganic compound selected from the group consisting of oxides, nitrides, carbides and sulfides containing aluminum element, zirconium element, cerium element, titanium element, silicon element, boron element or molybdenum element, said inorganic fine particles being fixed or anchored on the surface of each magnetic particle through a silicon compound derived from tetraalkoxysilane and the amount of said inorganic fine particles being 0.1 to 20% by weight based on the weight of said magnetic particles. Such magnetic composite particles are suitably used as a magnetic material in a magnetic recording layer of a magnetic recording medium having a high durability and an excellent magnetic head cleaning property
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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