HOKUETSU KISHU PAPER CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 9125
 
  
 
D04H MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL 526
 
  
 
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 434
 
  
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 276
 
  
 
A61L METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES 170
 
  
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 1101
 
  
 
B41M PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING 148
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
C08B POLYSACCHARIDES; DERIVATIVES THEREOF 130
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 1101

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0075,406 POROUS BODY AND PROCESS FOR MANUFACTURING SAMEFeb 15, 12Mar 19, 15[C08J, D06M, B01D]
2015/0004,865 NONWOVEN FABRIC FOR SEMIPERMEABLE MEMBRANE SUPPORTING BODY AND METHOD FOR MANUFACTURING SAMEFeb 15, 13Jan 01, 15[B01D, D04H]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9889411 Nonwoven fabric for semipermeable membrane supportJan 11, 13Feb 13, 18[D21H, C02F, B01D, B32B]
9656196 Filter material for air filter, method for manufacturing same, and air filter provided with sameJan 30, 14May 23, 17[D21H, F24F, B01D, D04H]
9328211 Porous cellulose body and method for producing sameMay 15, 13May 03, 16[C08J, F26B, C08B, D21H]
8951324 Air filter mediumMay 06, 11Feb 10, 15[D21H, B01D, D04H]
8845091 Variable printing medium having high glossiness, and recording methodMar 17, 10Sep 30, 14[B41M, B41J, C09D, C08K]
8662316 Filter medium for liquid filtration and process for producing the sameJul 21, 04Mar 04, 14[B01D, D04H]
7553394 Method for removing potassium from ash produced in a kraft pulping process recovery boiler using a Na-type cation exchange organic resinSep 11, 03Jun 30, 09[D21C]
7547339 Filter material take-up product for air filterSep 26, 01Jun 16, 09[B65H, B01D]
7520912 Air purifying filter media and process for producing the sameOct 16, 02Apr 21, 09[C12N, A61L, B01D]
6939386 Filter medium for air filter and method for its productionJul 11, 01Sep 06, 05[0000]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0342,626 NON-WOVEN FABRIC FOR SEMIPERMEABLE MEMBRANE SUPPORTAbandonedJan 29, 13Nov 20, 14[B01D, D04H]
2013/0267,142 WET-LAID NONWOVEN FABRIC FOR SEMIPERMEABLE MEMBRANE SUPPORTING BODY, METHOD FOR PRODUCING SAID WET-LAID NONWOVEN FABRIC, AND METHOD FOR IDENTIFYING LOW-DENSITY DEFECT OF WET-LAID NONWOVEN FABRICAbandonedDec 22, 11Oct 10, 13[D04H]
2012/0031,063 LOW-BASIS-WEIGHT FILTER MEDIA FOR AIR FILTERSAbandonedApr 20, 10Feb 09, 12[B01D]
2009/0320,428 Air filter mediumAbandonedAug 12, 09Dec 31, 09[B01D]
2009/0236,063 FINELY CUT PAPER PRODUCT FOR USE IN MIXING WITH RESIN, ECOLOGICALLY SOUND RESIN COMPOSITION COMPRISING THE SAME, AND ECOLOGICALLY SOUND MOLDED RESIN ARTICLE USING THE COMPOSITIONAbandonedSep 02, 05Sep 24, 09[D21H]

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