Description  Claims  Drawing  Cited references 

JP2007119882A   [0006] 
JP2009231391A   [0009]  [0009] 
EP1662516A1   [0011] 
JP2012079726A   [0011] 

Permanent Magnet-Materials Science and Application   [0005] 
Neodymium Magnet-Let's Protect Earth with Rare Earth   [0010]