Resources Contact Us Home
FePt magnet and manufacturing method thereof

Image Number 4 for United States Patent #6666930.

The present invention offers a minute-sized magnet with superior magnetic energy product (BH).sub.max and coercivity iHc, as well as superior anti-corrosive properties. This magnet is comprised of an alloy comprised of 35-55 atomic % platinum, 0.001-10 atomic % third element, which is one or more elements from groups IVa, Va, IIIb, or IVb, and a remainder of iron and other unavoidable impurities. The average crystal size of this FePt alloy is 0.3 .mu.m. By mixing an FePt alloy with a specific element in a designated ratio, an FePt magnet with more excellent characteristics than ones made from previous alloys was successfully made.

  Recently Added Patents
Voltage level shift circuits and methods
(Meth)acrylic resin composition, imidized (meth)acrylic resin composition, and film obtained by molding them
Mask blank, transfer mask, and film denseness evaluation method
Apparatus and method for multiple pagings in broadband wireless communication system
Switch redundancy in systems with dual-star backplanes
Lubricating oil with enhanced protection against wear and corrosion
Positive electrode for secondary battery, and secondary battery
  Randomly Featured Patents
Family of multi-speed transmission mechanisms having two input clutches
Heat insulating glass with multilayer coating
Graphical image convolution using multiple pipelines
Mounting structure of EGR valve for internal combustion engine
Anticonvulsive agents and uses thereof
Air ventilation structure of shoe sole
Milliwave melter monitoring system
Catalytic composition for hydrogenation of chlorofluoroalkenes
Optimizing data transmission bandwidth consumption over a wide area network
Head for keys