Nippon Kinzoku Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
C22B PRODUCTION OR REFINING OF METALS 127
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 172

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5613999 Method for producing magnesiumJul 11, 94Mar 25, 97[C22B]
RE35063 Method of soldering honeycomb bodyJan 21, 94Oct 17, 95[B23P]
5403558 Heat and fatigue resistant metallic carrier for automobile exhaust gas-purifying catalystJul 06, 93Apr 04, 95[F01N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0057,004 Stainless steel plate, method of manufacturing the same, and rubber-coated stainless steel plate gasketAbandonedJul 21, 04Mar 17, 05[F02F]
6444056 Refined magnesium material and method for producing the sameExpiredSep 23, 96Sep 03, 02[C22C]
5045404 Heat-resistant stainless steel foil for catalyst-carrier of combustion exhaust gas purifiersExpiredSep 26, 90Sep 03, 91[C22C]
4918042 Exhaust gas purifying catalystExpiredJul 08, 88Apr 17, 90[B01J]
4870046 Rolled high aluminum stainless steel foil for use as a substrate for a catalyst carrierExpiredApr 21, 88Sep 26, 89[B01J]
4867811 Processes for production of metallic catalyst-carrier and catalytic componentExpiredJul 27, 88Sep 19, 89[C23C]
4752599 Method for producing a base of a catalyst carrier for automobile exhaust gas-purificationExpiredMar 27, 87Jun 21, 88[B01J]
4647305 Process for manufacturing amorphous alloy powdersExpiredJul 12, 84Mar 03, 87[B22F]
4555832 Buckle assemblyExpiredJun 02, 83Dec 03, 85[B60R]
4520538 Buckle assemblyExpiredJun 02, 83Jun 04, 85[A44B]
4450604 Buckle for seat beltExpiredSep 22, 82May 29, 84[A44B]
4427499 Process for surface treatment of stainless steel sheetExpiredJul 29, 81Jan 24, 84[C25D]
4370210 Method and apparatus for continuously forming color display layer on stainless steel stripExpiredMar 10, 81Jan 25, 83[C23F]
4272749 Reactor core of insulated iron powderExpiredAug 30, 79Jun 09, 81[H01F]
4265679 Process for producing stainless steels for spring having a high strength and an excellent fatigue resistanceExpiredAug 23, 79May 05, 81[C21D]
4253620 Winding spring for seat belt winding apparatusExpiredSep 26, 79Mar 03, 81[B65H, A62B]
4236200 Semiconductor circuit having a series-connected reactorExpiredAug 30, 78Nov 25, 80[H02M]
4227166 ReactorExpiredJun 06, 78Oct 07, 80[H01F]

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