Nakayama Iron Works, 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 629

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5769334 Method for operating an eccentric jaw crusherNov 06, 96Jun 23, 98[B02C]
5639030 Vertical shaft impact crusher and operating method thereforApr 10, 95Jun 17, 97[B02C]
5397069 Jaw crusher for non-rigid object such as asphaltFeb 17, 94Mar 14, 95[B02C]
5323974 Vertical shaft impact crusherDec 14, 92Jun 28, 94[B02C]
5172869 Jaw crusherMay 01, 92Dec 22, 92[B02C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7311278 Crusher bucket with crushing lidExpiredMay 23, 05Dec 25, 07[B02C]
6592061 Roll crusherExpiredMar 30, 01Jul 15, 03[B02C]
5984214 Multiaxes roll type of crusherExpiredAug 13, 97Nov 16, 99[B02C]
5749530 Method for operating an eccentric jaw crusherExpiredNov 06, 96May 12, 98[B02C]
5725166 Swing type crusherExpiredDec 29, 95Mar 10, 98[B02C]
5497951 Rotor blade structure for vertical shaft impact crusherExpiredDec 23, 93Mar 12, 96[B02C]
4844354 Centrifugal refining crusherExpiredJun 24, 88Jul 04, 89[B02C]

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