DOWA ELECTRONICS MATERIALS CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 59303
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 4315
 
  
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 3641
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 2856
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 2019
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 1962
 
  
 
C09D COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 1676
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 15123
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM14143
 
  
 
C22C ALLOYS 1359

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0077,798 ELECTROCONDUCTIVE FILM AND METHOD FOR PRODUCING SAMEDec 16, 15Mar 15, 18[B05D, H01B, H05K]
2018/0033,530 MAGNETIC COMPOUND, ANTENNA, AND ELECTRONIC DEVICEFeb 24, 16Feb 01, 18[H01F, C08L, C08K]
2018/0005,737 IRON-BASED OXIDE MAGNETIC PARTICLE POWDER, METHOD FOR PRODUCING SAME, COATING MATERIAL, AND MAGNETIC RECORDING MEDIUMDec 28, 15Jan 04, 18[B82Y, G01N, G11B, H01F, C01G]
2017/0362,455 CONDUCTIVE PASTE AND METHOD FOR PRODUCING CONDUCTIVE FILM USING SAMEJan 06, 16Dec 21, 17[B05D, C09D, H01B, H05K]
2017/0349,448 ORIENTED BODY CONTAINING E-IRON OXIDE, METHOD FOR PRODUCING THE SAME, AND DEVICE FOR PRODUCING THE SAMEJan 18, 16Dec 07, 17[G11B, C01G, H01F, H05K]
2017/0309,381 FERRITE POWDER FOR BONDED MAGNETS, METHOD FOR PRODUCING THE SAME AND FERRITE BONDED MAGNETSep 30, 15Oct 26, 17[C04B, H01F]
2017/0301,440 FERRITE POWDER FOR BONDED MAGNETS, METHOD FOR PRODUCING THE SAME AND FERRITE BONDED MAGNETSep 30, 15Oct 19, 17[H01F]
2017/0278,596 METHOD FOR PRODUCING METAL NANOWIRES HAVING IMPROVED UNIFORMITY IN LENGTH DISTRIBUTIONSep 03, 15Sep 28, 17[C09D, H01B]
2017/0252,874 BONDING MATERIAL AND BONDING METHOD USING SAMEAug 31, 15Sep 07, 17[H01L, B23K, H01B, B22F]
2017/0232,510 SILVER-COATED COPPER POWDER AND METHOD FOR PRODUCING SAMEAug 21, 15Aug 17, 17[C23C, C25D, H01L, B05D, B22F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9914845 Fine silver particle dispersing solutionDec 04, 14Mar 13, 18[C09D, H01B, C09C, B22F]
9916922 Iron oxide magnetic nanoparticle powder and method of producing the same, iron oxide magnetic nanoparticle thin film containing the iron oxide magnetic nanoparticle powder and method of producing the sameApr 24, 14Mar 13, 18[C04B, H01F, C01G]
9886978 Process for production of magnetic thin film, magnetic thin film, and magnetic materialJun 24, 10Feb 06, 18[C09D, G11B, C01G, H01F, C08K]
9882088 III nitride semiconductor light-emitting deviceMar 10, 16Jan 30, 18[H01L]
9740129 Ferrite particles, carrier for electrophotographic development using same, and developer for electrophotographyOct 29, 14Aug 22, 17[G03G, H01F, C01G]
9741479 Magnetic powder for magnetic recording mediumOct 31, 14Aug 22, 17[G11B, H01F, C01G]
9732236 Conductive paste and method for producing conductive film using sameDec 05, 14Aug 15, 17[C09D, H01B, C08K, H05K]
9721694 Fine silver particle powder, method for manufacturing the same, silver paste using the powder and method of use of the pasteApr 03, 15Aug 01, 17[B82Y, H01M, C09D, H01B, C09C, B22F, C08K, C22C]
9708221 Brick, tile, floorboard, ceiling panel, and roofing material, and method for manufacturing sameFeb 25, 14Jul 18, 17[C04B, E04B, H05K]
9682426 Method for producing fine silver particlesSep 20, 13Jun 20, 17[C22B, H01B, B22F, C22C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0001,371 MAGNETIC COMPONENT, AND SOFT MAGNETIC METAL POWDER USED THEREIN AND MANUFACTURING METHOD THEREOFAbandonedSep 10, 15Jan 07, 16[B22F, H01F]
2015/0372,189 III NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICEAbandonedNov 28, 13Dec 24, 15[H01L]
2015/0340,230 III NITRIDE EPITAXIAL SUBSTRATE AND METHOD OF PRODUCING THE SAMEAbandonedNov 28, 13Nov 26, 15[H01L]
2015/0228,845 III NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING THE SAMEAbandonedAug 30, 13Aug 13, 15[H01L]
2015/0206,785 SUSCEPTOR, CRYSTAL GROWTH APPARATUS, AND CRYSTAL GROWTH METHODAbandonedJul 26, 13Jul 23, 15[C23C, H01L, C30B]
2015/0187,887 III NITRIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAMEAbandonedJul 04, 12Jul 02, 15[H01L]
2015/0104,664 MAGNETIC COMPONENT, AND SOFT MAGNETIC METAL POWDER USED THEREIN AND MANUFACTURING METHOD THEREOFAbandonedMar 13, 13Apr 16, 15[H01Q, B22F, H01F]
2014/0339,029 MAGNETIC FUNCTIONAL FLUID, DAMPER AND CLUTCH USING MAGNETIC FUNCTIONAL FLUIDAbandonedMay 14, 14Nov 20, 14[F16D, F16F]
2014/0327,034 SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAMEAbandonedNov 06, 12Nov 06, 14[H01L]
2014/0217,457 LIGHT-EMITTING ELEMENT CHIP AND MANUFACTURING METHOD THEREFORAbandonedMay 25, 11Aug 07, 14[H01L]
2014/0166,943 P-AlGAN LAYER AND GROUP III NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICEAbandonedFeb 20, 14Jun 19, 14[H01L]
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]
2014/0120,359 LOW-TEMPERATURE SINTERABLE METAL NANOPARTICLE COMPOSITION AND ELECTRONIC ARTICLE FORMED USING THE COMPOSITIONAbandonedMar 17, 11May 01, 14[B05D, B82Y, H01Q, B22F, B32B]
2014/0017,606 FERRITE PARTICLES AND ELECTROPHOTOGRAPHIC CARRIER AND ELECTROPHOTOGRAPHIC DEVELOPER USING SAMEAbandonedMar 19, 12Jan 16, 14[G03G]
8629078 Composite oxide for exhaust gas purifying catalyst and exhaust gas purifying catalyst, and diesel exhaust gas purifying filterExpiredOct 12, 07Jan 14, 14[B01J, B01D]
2013/0270,488 METAL PARTICLE POWDER AND PASTE COMPOSITION USING SAMEAbandonedJan 18, 12Oct 17, 13[H01B]
8512602 ITO powder and method of producing the same, coating material for transparent conductive material, and transparent conductive filmExpiredSep 26, 08Aug 20, 13[H01B]
8469760 Light emitting device and method for producing sameExpiredMar 27, 07Jun 25, 13[B05D]
2013/0137,246 METHOD OF PRODUCING GROUP III NITRIDE SEMICONDUCTOR GROWTH SUBSTRATEAbandonedJan 25, 13May 30, 13[H01L]
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]

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