SHOWA ALUMINUM CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C09G POLISHING COMPOSITIONS OTHER THAN FRENCH POLISH; SKI WAXES116
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR194

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6478835 Abrasive composition for polishing magnetic recording disk substratesJan 23, 01Nov 12, 02[C09K, C09G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6572721 Method of manufacturing automotive sunshade panelExpiredSep 11, 98Jun 03, 03[B32B]
6378338 Method for producing magnetic disk substratesExpiredAug 30, 99Apr 30, 02[C25D, C03C, G11B]
6241011 Layered heat exchangersExpiredJun 17, 98Jun 05, 01[F28D]
5571349 Method of producing twisted aluminum articlesExpiredDec 15, 94Nov 05, 96[C22F]
5072789 Heat exchanger made of aluminumExpiredDec 06, 90Dec 17, 91[F28F]
4962811 Heat exchangerExpiredOct 17, 89Oct 16, 90[F28F]
4960096 Adapter for intake manifoldExpiredNov 17, 89Oct 02, 90[F02M]
4920766 Receiver for refrigerant apparatusExpiredSep 01, 89May 01, 90[F25B]
4860565 Process for preparing hollow aluminum extrudates for use in vacuumExpiredJun 13, 88Aug 29, 89[B21C]
4828937 Process for producing hollow extrudate for use in vacuumExpiredJan 29, 87May 09, 89[F16L, B32B]
4809743 Fuel pipe device for motor vehicles and process for producing sameExpiredJun 26, 87Mar 07, 89[F02M]
4806436 Substrate for amorphous silicon solar cellsExpiredApr 27, 87Feb 21, 89[B32B]
4772319 Process for treating molten aluminum to remove hydrogen gas and non-metallic inclusions therefromExpiredSep 23, 86Sep 20, 88[C22B]
4766885 Solar water heaterExpiredDec 19, 86Aug 30, 88[F24J]
4763229 Aluminum capacitor plate for electrolytic capacitor and process for making the sameExpiredDec 23, 87Aug 09, 88[H01G]
4729428 Heat exchanger of plate fin typeExpiredJun 27, 86Mar 08, 88[F28F]
4686133 Closure material for sealing glass containersExpiredFeb 22, 85Aug 11, 87[B32B]
4670050 Method of treating molten aluminum by removing hydrogen gas and nonmetallic inclusions therefromExpiredDec 17, 85Jun 02, 87[C22B]
4588023 Device for releasing heatExpiredFeb 17, 84May 13, 86[F28D]
4556419 Process for treating molten aluminum to remove hydrogen gas and non-metallic inclusions therefromExpiredOct 19, 84Dec 03, 85[C22B]

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