China North Magnetic & Electronic Technology Co., LTD

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 547
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 381
 
  
 
C22C ALLOYS 270
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 144
 
  
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS123

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9579724 Method for producing neodymium-iron-boron rare earth permanent magnetic deviceSep 29, 13Feb 28, 17[B22F, H01F, C22C]
9492869 Double-alloy NdFeB rare earth permanent magnetic material and manufacturing method thereofOct 07, 13Nov 15, 16[B22F, H01F]
9427804 Method for producing a high-performance neodymium—iron—boron rare earth permanent magnetic materialOct 09, 13Aug 30, 16[B22F, H01F, C22C]
9415445 Method for producing neodymium-iron-boron rare earth permanent magnetic materialSep 29, 13Aug 16, 16[B22F, H01F, C22C]
9267185 Rotating vacuum heat treatment equipmentOct 07, 13Feb 23, 16[F27B, B22F, C21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0328,712 Vacuum heat treatment method and equipment for NdFeB rare earth permanent magnetic devicesAbandonedSep 11, 13Nov 06, 14[H01F]

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