KAWATETSU MINING 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 844
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM3154
 
 
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 237
 
 
 
C22C ALLOYS 270
 
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 264
 
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 2152
 
 
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 148
 
 
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
 
 
C01D COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM 114
 
 
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 173

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8029930 Positive electrode material for lithium secondary battery, method for producing the same, and lithium secondary batteryNov 17, 03Oct 04, 11[H01M, C01D]
7510804 Cathode material for use in lithium secondary battery and manufacturing method thereofJun 07, 02Mar 31, 09[H01M]
7244286 Copper alloy powder for electrically conductive pasteNov 28, 02Jul 17, 07[B22F]
7175688 Ni-Fe based alloy powderDec 26, 02Feb 13, 07[B22F]
6982047 Surface-treated ultrafine metal powder, method for producing the same, conductive metal paste of the same, and multilayer ceramic capacitor using said pasteNov 14, 03Jan 03, 06[H01B, B22D, H01G]
6881239 Ultrafine metal powder slurry with high dispersibilityDec 13, 02Apr 19, 05[B22F]
6881377 Methods for manufacturing capacitors and electrodes using ultrafine nickel powderMay 21, 03Apr 19, 05[B22F]
6765786 Niobium powder and solid electrolytic capacitor using the sameMar 18, 03Jul 20, 04[B22F, H01G, C22C]
6756238 Domain controlled piezoelectric single crystal and fabrication method thereforSep 19, 02Jun 29, 04[H01L]
6596052 Ultrafine nickel powderOct 10, 01Jul 22, 03[B22F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0193,410 Copper alloy powder for electrically conductive pasteAbandonedApr 10, 07Aug 23, 07[C22C]
6903645 Surface mounting type planar magnetic device and production method thereofExpiredMar 04, 04Jun 07, 05[H01F]
6831543 Surface mounting type planar magnetic device and production method thereofExpiredFeb 23, 01Dec 14, 04[H01F]
6635100 Niobium powder and anode for solid electrolyte capacitors made therefromExpiredJan 17, 02Oct 21, 03[B22E]
6383626 Magnetic ferrite film for magnetic devicesExpiredApr 12, 00May 07, 02[G11B]
5316746 High purity iron oxide and method for production hereofExpiredApr 16, 93May 31, 94[C01G]
5185204 Agglomerate of whiskers or short fibersExpiredJun 18, 90Feb 09, 93[B32B]
4973462 Process for producing high purity silicaExpiredNov 09, 89Nov 27, 90[C01B]
4902671 Manufacturing method of conductive or superconductive thin filmExpiredFeb 24, 88Feb 20, 90[H01L]
4676964 Process for purifying silicaExpiredApr 30, 86Jun 30, 87[C01B]
4655831 Method of stabilizing a steel making slagExpiredMar 07, 86Apr 07, 87[C21B]

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