Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Human activity monitoring device
Security authentication method, apparatus, and system
Fuel cell and a method of manufacturing a fuel cell
Packaging for socks
Injection molding method and injection molding machine
Memory interface circuit, memory interface method, and electronic device
Case for electronic device
  Randomly Featured Patents
Multi-material ripper tip
Driving apparatus for electrostatic converting means
Syringe needle cushion with cover
Transducers for focusing sonic energy in transmitting and receiving device
Freezing container arrangement
Optical scanning head
Fiber-optic illuminated artificial Christmas tree
Rotor braking device for spinning reel
Combiner-demodulator for phase shift keyed suppressed carrier signals received over two transmission paths
Control apparatus for internal combustion engine