KABUSHIKI KAISHA YOKOTA SEISAKUSHO

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING667
 
  
 
B01D SEPARATION 4130
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS470
 
  
 
A47L DOMESTIC WASHING OR CLEANING 159
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
F03B MACHINES OR ENGINES FOR LIQUIDS 123
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 148
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0008,910 GAS-LIQUID SEPARATORJan 22, 16Jan 11, 18[B01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9759217 Self-priming centrifugal pumpAug 09, 12Sep 12, 17[F03B, F04D]
9700853 Gas-liquid dissolving tank and microscopic bubble generatorJan 28, 14Jul 11, 17[B01F]
7597732 Gas-liquid separatorDec 25, 03Oct 06, 09[B01D]
6629821 Pump apparatusJan 04, 02Oct 07, 03[F04B]
6547480 Composite structureJan 12, 01Apr 15, 03[F16B]
6263905 Automatic regulating valve apparatusApr 06, 99Jul 24, 01[F16K]
6152689 Self-priming type cetrifugal pumpJan 22, 99Nov 28, 00[F04D]
6135142 Control valve deviceNov 24, 98Oct 24, 00[G05D]
6102072 Water-hammerless check valveOct 05, 98Aug 15, 00[F16K]
6033558 Self-gush-cleaning filter deviceFeb 03, 98Mar 07, 00[B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5957428 Composite-action butterfly valveExpiredAug 12, 98Sep 28, 99[F16K]
5713556 Composite-action butterfly valveExpiredOct 21, 96Feb 03, 98[F16K]

Top Inventors for This Owner

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