Yuken Kogyo Kabushiki Kaisha

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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 161
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 190
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 183

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6968859 Electromagnetic operating deviceNov 14, 00Nov 29, 05[F16K, H01F]
6748739 Hydraulic power systemJan 10, 02Jun 15, 04[F16D]
6592336 Hydraulic pump with a built-in electric motorNov 28, 01Jul 15, 03[F04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4983263 Zincate type zinc alloy electroplating bathExpiredNov 17, 89Jan 08, 91[C25D]
4801247 Variable displacement piston pumpExpiredAug 26, 86Jan 31, 89[F04B]
4796661 Proportional electro-hydraulic pressure control valveExpiredAug 19, 86Jan 10, 89[F16K]
4724865 Control circuit for proportional electro-hydraulic fluid control valvesExpiredMar 18, 87Feb 16, 88[G05D]

Top Inventors for This Owner

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