DOWA IP CREATION CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 1962
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 237
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 167
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 183

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9740129 Ferrite particles, carrier for electrophotographic development using same, and developer for electrophotographyOct 29, 14Aug 22, 17[G03G, H01F, C01G]
9651886 Carrier core particles for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developerAug 30, 12May 16, 17[G03G]
9507285 Ferrite particles and electrophotographic development carrier using same, electrophotographic developer and method of manufacturing ferrite particlesFeb 26, 14Nov 29, 16[G03G, C01G]
9429862 Carrier for electrophotographic developer and electrophotographic developerOct 16, 15Aug 30, 16[G03G]
9329514 Carrier core particle for electrophotographic developer, method for manufacturing the same, carrier for electrophotographic developer and electrophotographic developerSep 25, 14May 03, 16[G03G, C01G]
9274446 Method for manufacturing carrier core particles for electrophotographic developerNov 30, 12Mar 01, 16[G03G]
9268246 Method for manufacturing carrier core particles for electrophotographic developer, carrier core particles for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developerFeb 20, 14Feb 23, 16[C04B, G03G]
9195157 Carrier core particles for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developerMar 02, 12Nov 24, 15[G03G]
9164411 Carrier core material for electrophotographic developer, method for manufacturing the same, carrier for electrophotographic developer and electrophotographic developerJun 28, 10Oct 20, 15[G03G]
9034552 Carrier core particles for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developerMar 01, 12May 19, 15[G03G]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0154,623 CARRIER CORE PARTICLES FOR ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, ELECTROPHOTOGRAPHIC DEVELOPER AND METHOD FOR MANUFACTURING THE CARRIER CORE PARTICLESAbandonedFeb 07, 14Jun 05, 14[G03G]
2014/0017,606 FERRITE PARTICLES AND ELECTROPHOTOGRAPHIC CARRIER AND ELECTROPHOTOGRAPHIC DEVELOPER USING SAMEAbandonedMar 19, 12Jan 16, 14[G03G]
2013/0084,521 CARRIER CORE PARTICLES FOR ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, ELECTROPHOTOGRAPHIC DEVELOPER AND METHOD FOR MANUFACTURING THE CARRIER CORE PARTICLESAbandonedMay 17, 11Apr 04, 13[G03G]
2013/0011,781 CARRIER CORE PARTICLE FOR ELECTROPHOTOGRAPHIC DEVELOPER, METHOD FOR MANUFACTURING THE SAME, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND ELECTROPHOTOGRAPHIC DEVELOPERAbandonedMar 08, 11Jan 10, 13[G03G]

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