MITSUBISHI KINZOKU KABUSHIKI KAISHA

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B23B TURNING; BORING 250
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 151
 
  
 
B28D WORKING STONE OR STONE-LIKE MATERIALS 121
 
  
 
C22C ALLOYS 171

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5261767 Boring bar toolJul 22, 92Nov 16, 93[B23B]
5230593 Twist drillApr 03, 92Jul 27, 93[B23B]
5218948 Inside diameter bladeJun 15, 92Jun 15, 93[B28D]
5110543 Cement blade member for cutting-tools and process for producing sameJul 19, 91May 05, 92[B22F, C22C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5244871 N-type oxide superconductor represented by the formula (Nd.sub.x (Ce.sub.y L.sub.z).sub.2 CuO.sub.4-d where L is La, Mg or a mixture of alakaline earth elementsExpiredOct 09, 91Sep 14, 93[H01L, C04B, C01G]
5228930 Rare earth permanent magnet power, method for producing same and bonded magnetExpiredJul 31, 90Jul 20, 93[H01F]
5226404 Cutting apparatusExpiredJun 19, 92Jul 13, 93[B28D]
5209216 Chain cutterExpiredMar 12, 92May 11, 93[B28D]
5169830 Superconducting materialExpiredAug 15, 90Dec 08, 92[H01L, C01F]
5151001 Apparatus for rotating top ends of cansExpiredFeb 22, 90Sep 29, 92[B65H]
5147447 Sintered rare earth metal-boron-iron alloy magnets and a method for their productionExpiredFeb 02, 90Sep 15, 92[G22F]
5130498 Ceramic substrate used for fabricating electric or electronic circuitExpiredOct 09, 90Jul 14, 92[H05K]
5124311 Structure of ceramic superconductive wiring and process of fabrication thereofExpiredMay 30, 89Jun 23, 92[B32B]
5122206 Precipitation hardening nickel base single crystal cast alloyExpiredMay 09, 90Jun 16, 92[C22F, C22C]
5114468 Cu-base sintered alloyExpiredMar 23, 90May 19, 92[C22C]
5106674 Blade member of tungsten-carbide-based cemented carbide for cutting tools and process for producing sameExpiredOct 31, 89Apr 21, 92[B32B]
5096768 Substrate used for fabrication of thick film circuitExpiredFeb 05, 90Mar 17, 92[B32B]
5087509 Substrate used for fabrication of thick film circuitExpiredMay 18, 90Feb 11, 92[B32B]
5077269 Sputtering target used for forming quinary superconductive oxideExpiredJun 08, 89Dec 31, 91[H01L]
5075200 Process of forming superconductive wiring stripExpiredAug 24, 89Dec 24, 91[C04B, G03C]
5071619 Fine gold alloy wire for bonding of a semiconductor deviceExpiredDec 04, 89Dec 10, 91[C22C]
5068148 Diamond-coated tool member, substrate thereof and method for producing sameExpiredDec 21, 89Nov 26, 91[B32B]
5068149 Wire member of cemented carbideExpiredSep 27, 88Nov 26, 91[B21C, B32B]
5066553 Surface-coated tool member of tungsten carbide based cemented carbideExpiredApr 10, 90Nov 19, 91[B32B]

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