US PATENT SUBCLASS 75 / 348
.~.~ Producing or purifying named magnetic material

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
343  DF  .~ Producing or purifying free metal powder or producing or purifying alloys in powder form (i.e., named or of size up to 1,000 microns in its largest dimension) {9}
348.~.~ Producing or purifying named magnetic material {2}
349  DF  .~.~.~> Using Phosphorus(P), Boron(B), or Silicon(Si) or compound thereof
350  DF  .~.~.~> Using Alkaline earth metal or compound thereof

DEFINITION

Classification: 75/348

Producing or purifying named magnetic material:

(under subclass 343) Process in which a named magnetic material (i.e., the magnetic properties are specified) is purified without modifying or altering the magnetic properties or is produced.

SEE OR SEARCH CLASS

148, Metal Treatment,

105, for processes in which the material is in particulate form at the time its magnetic properties are altered, as well as at the end of the process.