Aikawa Iron Works Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 431
 
  
 
D21D TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE 36
 
  
 
B03D FLOTATION; DIFFERENTIAL SEDIMENTATION 114
 
  
 
B07B SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL 120
 
  
 
D21C PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR127
 
  
 
D21G CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES 112
 
  
 
D21H PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR 137

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0159,239 PAPERMAKING SCREEN DEVICESep 02, 16Jun 08, 17[B02C, D21D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8926793 Processes for preparing pulp and paperJan 24, 12Jan 06, 15[D21H, D21D, D21C]
8181790 Flotation apparatusSep 02, 08May 22, 12[B03D]
6811106 RefinerDec 13, 01Nov 02, 04[B02C]
6149015 Screen apparatus for papermaking materialMay 25, 99Nov 21, 00[B07B]
5279710 Doctor blade supporting structureJan 31, 92Jan 18, 94[D21G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0040,357 PAPERMAKING STRAINER, FOREIGN MATERIAL SEPARATION APPARATUS FOR PAPERMAKING, AND MANUFACTURING METHOD OF PAPERMAKING STRAINERAbandonedJun 15, 15Feb 11, 16[D21B, D21D]
2016/0009,501 CLEANING APPARATUS AND CLEANING METHODAbandonedApr 07, 15Jan 14, 16[B65G]
2014/0190,646 PAPERMAKING SCREEN APPARATUSAbandonedDec 24, 13Jul 10, 14[D21D]
2013/0341,445 PULPERAbandonedMar 19, 13Dec 26, 13[D21B]
7624939 KneaderExpiredSep 13, 07Dec 01, 09[B02C]
2008/0292,378 Doctor device and blade exchange method for doctor deviceAbandonedMar 25, 08Nov 27, 08[G03G]
2008/0217,214 Papermaking screen deviceAbandonedMar 03, 08Sep 11, 08[B07B]
2008/0017,342 Screen apparatusAbandonedJul 13, 07Jan 24, 08[D21D]
2007/0215,526 Screen deviceAbandonedAug 25, 06Sep 20, 07[B07B, D21C]
7121411 Screen apparatusExpiredOct 09, 03Oct 17, 06[B07B]
2006/0180,506 Screen apparatusAbandonedJul 05, 05Aug 17, 06[B07B, D21C]
2006/0076,278 Screen deviceAbandonedJul 05, 05Apr 13, 06[B07B]
2006/0032,791 Screen deviceAbandonedJul 05, 05Feb 16, 06[B21D, B01D]
6969019 Refiner and agitating apparatus for papermakingExpiredFeb 25, 02Nov 29, 05[B02C]
6923329 Screen apparatusExpiredFeb 20, 03Aug 02, 05[B07B]
2005/0126,986 Papermaking screen deviceAbandonedSep 20, 04Jun 16, 05[B01D]
2005/0072,730 Papermaking strainerAbandonedSep 20, 04Apr 07, 05[B01D]
2004/0094,646 Dissociating apparatus for papermaking raw material and method for dissociating papermaking raw materialAbandonedOct 20, 03May 20, 04[B02C]
6669028 Cylindrical screenExpiredSep 07, 01Dec 30, 03[B07B]
2003/0010,854 Screen apparatusAbandonedOct 02, 01Jan 16, 03[B02C]

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