Nippon Pneumatic Manufacturing Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 233
 
  
 
B25D PERCUSSIVE TOOLS 218
 
  
 
B04C APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES 112
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
B25F COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR 122
 
  
 
E21B EARTH OR ROCK DRILLING 195

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6269955 Air current classifying separatorApr 29, 99Aug 07, 01[B04C]
6047475 Mounting for a construction shearFeb 26, 98Apr 11, 00[B25F]
6015108 CrusherMay 14, 98Jan 18, 00[B02C]
5664734 Crusher apparatusFeb 23, 96Sep 09, 97[B02C]
5621962 Method of manufacturing chisel for impact toolApr 10, 95Apr 22, 97[B23P]
5285858 Device for supporting impact toolMar 15, 93Feb 15, 94[B25D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0068,079 DEMOLITION CUTTERAbandonedMar 17, 11Mar 21, 13[B26D]
7237738 Demolishing and cutting machineExpiredAug 04, 03Jul 03, 07[B02C]
6510904 Protected tool bushing for an impact hammerExpiredMay 26, 00Jan 28, 03[B25D]
6336785 Quick coupler for heavy equipmentExpiredOct 18, 99Jan 08, 02[E02F]
5894666 Cutting and piercing tips for a metal cutting shearExpiredMar 17, 97Apr 20, 99[B02C]
5271301 Vibrating cutting toolExpiredSep 17, 92Dec 21, 93[B23B]
5143493 Vibrating cutting toolExpiredDec 02, 91Sep 01, 92[B23C]
D326857 Vibrating pile driverExpiredOct 24, 89Jun 09, 92[]
D324159 Portable cut sawExpiredAug 01, 89Feb 25, 92[]
D323169 Crusher for use with a power shovelExpiredOct 11, 89Jan 14, 92[]
D323170 Crusher for use with a power shovelExpiredOct 11, 89Jan 14, 92[]
4945998 Hydraulic impact toolExpiredJul 25, 89Aug 07, 90[B23B]
4852664 Hydraulic impact toolExpiredApr 25, 88Aug 01, 89[B25D]
4838133 Hydraulic pulse wrenchExpiredSep 28, 87Jun 13, 89[B25B]
4724912 Mechanism for mounting impact toolExpiredJul 02, 86Feb 16, 88[E21B]
4664571 Tool abnormality detectorExpiredMay 22, 86May 12, 87[B23Q, B23B]
4566675 Control device for an air hoistExpiredMar 05, 85Jan 28, 86[B66D]
4379492 Torque control apparatus for pneumatic impact wrenchExpiredJun 02, 80Apr 12, 83[B25B]
4221655 Air classifierExpiredMar 01, 79Sep 09, 80[B04C]
4181183 Impact toolExpiredJan 05, 78Jan 01, 80[B25D]

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