IWAKI CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 1151
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 4103
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS272
 
  
 
C07D HETEROCYCLIC COMPOUNDS 1161
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 144

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0051,692 VOLUME PUMPMar 10, 15Feb 22, 18[F04B]
2017/0218,950 PLUNGER PUMPJan 24, 17Aug 03, 17[F04B]
2016/0341,201 MAGNETIC PUMPDec 27, 13Nov 24, 16[F04D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9239047 Bellows pumpMar 08, 12Jan 19, 16[F04B]
8288906 Maglev motor and pumpJan 29, 08Oct 16, 12[H02K]
7977838 Magnetic levitation motor and pumpOct 21, 08Jul 12, 11[H02K]
7800269 Hybrid magnetic bearingJun 12, 09Sep 21, 10[H02K]
7683514 Hybrid magnetic bearingAug 30, 06Mar 23, 10[H02K]
7249939 Rear casing arrangement for magnetic drive pumpDec 16, 03Jul 31, 07[F04B]
6966339 Spool valve arrangementOct 15, 03Nov 22, 05[F15B]
6874997 Pump system using a control fluid to drive a switching valve mechanism for an actuating fluidNov 08, 02Apr 05, 05[F04B]
6843645 Cooling system for a magnetic pumpJan 15, 03Jan 18, 05[F04D]
6814553 Dual reciprocating bellows pump, with a pair of interlocking shafts passing through a common pump head and dual pump chambersDec 30, 02Nov 09, 04[F04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0091,340 RECIPROCATING PUMP AND CHECK VALVEAbandonedOct 08, 10Apr 21, 11[F16K, F04B]
2005/0191,195 Dual reciprocating bellows pump with interlock shaft meansAbandonedJan 27, 05Sep 01, 05[F04B]
2004/0265,149 Bellows pump with flexible partition membraneAbandonedJun 30, 04Dec 30, 04[F04B]
6302660 Tube pump with flexible tube diaphragmExpiredFeb 01, 00Oct 16, 01[F04B]
5477881 Tank for pumpExpiredSep 08, 94Dec 26, 95[B67D]
D361822 Tank used for pumpExpiredMar 09, 94Aug 29, 95[]
5182198 Process for preparing (+)-homopilopic acidExpiredNov 16, 90Jan 26, 93[C12R, C12P, C12N]
D300034 Bellows pumpExpiredNov 24, 86Feb 28, 89[]
D296556 Bellows pumpExpiredNov 24, 86Jul 05, 88[]
4684333 Self-priming pumpExpiredJul 02, 86Aug 04, 87[F16K, F04B]
4272225 Electromagnetically-operated fixed displacement pumpExpiredMar 30, 79Jun 09, 81[F04B]

Top Inventors for This Owner

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