KABUSHIKI KAISHA TOUKAI SPRING SEISAKUSHO A CORP. OF JAPAN

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 3131
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 254

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0051,911 RETAINER FOR FILTER, AND FILTER USING SAMEJul 05, 13Feb 25, 16[B01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5858230 Hub ring and supporting plate for a filterOct 24, 96Jan 12, 99[B01D]
5829138 Hub ring and supporting plate for a filter and methods for manufacturing these membersSep 24, 97Nov 03, 98[B23P]
5755034 Method for manufacturing a hub ring for a filterOct 24, 96May 26, 98[B23P]
5611925 Hub ring and supporting plate for a filter and methods for manufacturing these membersMar 22, 95Mar 18, 97[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0094,959 FILTER RETAINERAbandonedMar 31, 09Apr 28, 11[B01D]

Top Inventors for This Owner

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