Kabushiki Kaisha Showa Seisakusho

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 342
 
  
 
F27D DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 322
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 3108
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 254
 
  
 
B63H MARINE PROPULSION OR STEERING 238
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS123

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0175,218 FAR-INFRARED RADIATION HEATING FURNACE FOR STEEL SHEET FOR HOT STAMPINGMay 28, 15Jun 22, 17[H05B, F27D, C21D, B21D]
2017/0159,150 FAR -INFRARED RADIATION MULTI-STAGE TYPE HEATING FURNACE FOR STEEL SHEETS FOR HOT STAMPINGMay 28, 15Jun 08, 17[H05B, F27D, C21D, B21D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5372528 Tilting and trimming mechanism for outboard engineOct 16, 92Dec 13, 94[B63H]
5350326 Hydraulic pressure generating device for power steering apparatus for outboard engineFeb 10, 93Sep 27, 94[B63H]
5104294 Hydraulic pump assembly with accumulator and oil reservoirJun 13, 91Apr 14, 92[F04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6752624 Soaking apparatusExpiredNov 27, 02Jun 22, 04[F27D]
5387142 Power steering device for outboard engineExpiredNov 10, 92Feb 07, 95[B63H]
5327936 Spool valve with self-centering mechanismExpiredDec 30, 92Jul 12, 94[F16K, F15B, B62D]
5328196 Wheel suspension system for bicycleExpiredMar 12, 92Jul 12, 94[B62K]
5311910 Cap attachment structure for accumulatorExpiredFeb 19, 92May 17, 94[F16L]
5207081 Vibration damper assemblyExpiredNov 19, 91May 04, 93[D06F]
5201384 Motorcycle having body height adjusting mechanismExpiredOct 26, 90Apr 13, 93[B62K, B60G]
5181696 Vehicle height adjusting device for attachment to a hydraulic shock absorber for vehiclesExpiredAug 16, 90Jan 26, 93[B62K, B60G, F16F]
5156561 Trim and tilt mechanism for use with outboard engineExpiredMay 24, 90Oct 20, 92[B63H]
5149285 Tilt/trim device for outboard engineExpiredJul 03, 90Sep 22, 92[B63H]
5118315 Method of and apparatus for controlling the angle of trim of marine propulsion unitExpiredFeb 02, 90Jun 02, 92[B63H]
5098120 Shock absorber for use in a vehicleExpiredJan 10, 91Mar 24, 92[B60G]
5086866 Motorcycle having body height adjustorExpiredOct 25, 90Feb 11, 92[B62J, B62K, B60G]
5087179 Filter attachment for gear pumpExpiredApr 06, 90Feb 11, 92[F04C, B01D]
5041033 Hydraulic pressure mechanism for lifting and lowering outboard engineExpiredJul 06, 90Aug 20, 91[B63H]
5032094 Tilt-trim system for outboard motorsExpiredSep 27, 89Jul 16, 91[B63H]
5030148 Piston rod connecting structure for outboard motorExpiredOct 05, 89Jul 09, 91[F16J]
5022501 Hydraulic type vehicle height adjusting device for attachment to vehicle shock absorberExpiredSep 19, 89Jun 11, 91[F16F]
5005859 Motor vehicle suspension with rotary damperExpiredNov 17, 89Apr 09, 91[B60G]
4964625 Hydraulic damper with oil lock mechanismExpiredJul 12, 88Oct 23, 90[F10F, F16F]

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