YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 480
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 349
 
  
 
C22C ALLOYS 369
 
  
 
1601 PHOTOGRAPHIC CAMERAS AND FILM CAMERAS130

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0061,540 METHOD FOR PRODUCING A SINTERED R-IRON-BORON MAGNETAug 29, 17Mar 01, 18[B22F, H01F, C22C]
2018/0061,568 METHOD FOR PRODUCING SINTERED R-IRON-BORON MAGNETAug 29, 17Mar 01, 18[H01F, C22C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9901984 Method for preparing R-Fe-B based sintered magnetFeb 21, 14Feb 27, 18[B22F, H01F]
9623482 Method for preparing R-Fe-B based sintered magnetFeb 21, 14Apr 18, 17[B22F, H01F, C22C]
D691647 Hunting cameraJan 05, 12Oct 15, 13[1601]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0093,551 R-Fe-B based magnet having gradient electric resistance and method for producing the sameAbandonedDec 24, 10Apr 18, 13[H01F]

Top Inventors for This Owner

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