Furukawa Aluminum co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 148
 
  
 
C22F CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS 136
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1100
 
  
 
F16H GEARING199

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5395687 Surface-treated aluminum material having improved spot resistance weldability, workability, and corrosion resistanceFeb 19, 93Mar 07, 95[C23C]
5302157 Lightweight V-grooved pulleyJun 22, 92Apr 12, 94[F16H]
5217547 Aluminum alloy fin material for heat exchangerMay 17, 91Jun 08, 93[C22F]
5133126 Method of producing aluminum tube covered with zincOct 21, 91Jul 28, 92[B22D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5554234 High strength aluminum alloy for forming fin and method of manufacturing the sameExpiredDec 22, 94Sep 10, 96[C22F]
5375760 Method of producing aluminum alloy heat-exchangerExpiredFeb 16, 94Dec 27, 94[B23K]
5322741 Aluminum alloy sheet with improved formability and method of productionExpiredApr 16, 93Jun 21, 94[C22F, B32B]
5282909 Aluminum alloy extrusion material with excellent chip separation property and precision of cut face on cuttingExpiredFeb 26, 93Feb 01, 94[C22C]
5234759 Brazing sheet comprising an Al--Mg--Si alloy brazing materialExpiredOct 31, 91Aug 10, 93[B23K]
5146975 Width-variable mold deviceExpiredMay 29, 91Sep 15, 92[B22D]
5017337 Aluminum alloy for magnetic disc substrate execellent in platabilityExpiredSep 26, 89May 21, 91[C22C]
4998429 Method for drawing tubular materialExpiredApr 09, 90Mar 12, 91[B21C]
4967583 Method of manufacturing extruded seamless hollow materialsExpiredOct 17, 89Nov 06, 90[B21C]
4911351 Method of manufacturing heat-exchangerExpiredMay 30, 89Mar 27, 90[C23C, B23K]
4906534 Composite aluminum thin plates for brazing and method for preparing sameExpiredDec 09, 88Mar 06, 90[C22F, B32B]
4887179 Substrate for rigid disk storage media and method and apparatus for making the sameExpiredApr 14, 89Dec 12, 89[G11B]
4875519 Method of manufacturing hollow billet and apparatus thereforExpiredApr 25, 88Oct 24, 89[B22D]
4870524 Substrate for rigid disk storage mediaExpiredJan 02, 87Sep 26, 89[G11B]
4860568 Tubular material drawing apparatus for manufacturing precision tubeExpiredApr 21, 88Aug 29, 89[B21C]
4852233 Method of manufacturing extruded flat multihole aluminum tube for heat-exchangerExpiredJul 21, 88Aug 01, 89[B21D]
4840685 Aluminum alloy for the substrate of magnetic diskExpiredApr 13, 88Jun 20, 89[C22C]
4829799 Method of manufacturing substrate for memory diskExpiredOct 27, 87May 16, 89[B21D]
4825680 Method of manufacturing metal substrates for disk for memory storage mediaExpiredOct 27, 87May 02, 89[B21D]
4823578 Method of manufacturing substrate for memory diskExpiredOct 27, 87Apr 25, 89[B21D]

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