Tsurumi Seiki Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B66C CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES 229
 
  
 
B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS 116
 
  
 
B66D CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS 120
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8601969 Float deviceApr 26, 12Dec 10, 13[B63G]
7866630 Winding mechanism with tension control function and trawling apparatusJan 17, 06Jan 11, 11[B65H, B66D]
7775383 Hoisting device with vertical motion compensation functionDec 30, 08Aug 17, 10[B66C]
7681748 Hoisting device with vertical motion compensation functionApr 18, 05Mar 23, 10[B66C]
D397628 Probe for measuring an electric conductivityAug 22, 97Sep 01, 98[1004]
5767682 Electric conductivity measurement circuit and probeOct 20, 95Jun 16, 98[G01N, G01R]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5189909 Device for measuring properties of underground water and method thereforExpiredAug 06, 90Mar 02, 93[E21B]
4552016 Sensor for currentmeterExpiredAug 09, 83Nov 12, 85[G01P, G01F]

Top Inventors for This Owner

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