Back to results
US 2010/0223206 A1Published application
Method of providing and selecting particles to increase signal-to-noise ratio in magnetic recording media
OwnerMichael P. Sharrockinventor
Life of this patent
Estimating the term…
Abstract
A method of providing particles configured for use in magnetic recording media includes providing a set of particles having a size distribution, and removing a fraction of the set of particles from the size distribution. The fraction is less than approximately 50% by volume and includes the most massive particles in the size distribution.
Claims20
A method of providing particles configured for use in magnetic recording media, the method comprising:
- providing a set of particles having a size distribution;
- and
- removing a fraction of the set of particles from the size distribution, the fraction less than approximately 50% by volume of the set and comprising the most massive particles in the size distribution.
A magnetic recording media comprising:
- an elongated substrate;
- and
- a magnetic film coated over the elongated substrate, the magnetic film comprising a first magnetic recording layer comprising particles having a size distribution narrowed relative to an original size distribution;
- wherein the size distribution is narrowed by selectively removing up to 50% by volume of the particles, those particles having the greatest particle volume.
1 more element
A method of selecting particles configured to increase signal-to-noise ratio (SNR) in magnetic recording media, the method comprising:
- providing an original size distribution of particles configured for fabricating a magnetic recording layer of the magnetic recording media;
- and
- removing a portion of the particles from the size distribution to provide an effective SNR volume (VeSNR) for a set of remaining particles, wherein the VeSNR for the set of remaining particles is substantially less than a calculated VeSNR of the original size distribution of particles.
Dependencies are inferred from the claim text.