EAST JAPAN RAILWAY COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61L GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC 422
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 373
 
  
 
B61D BODY DETAILS OR KINDS OF RAILWAY VEHICLES 224
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
B60M POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES 110
 
  
 
B60R VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR 1109
 
  
 
B61G COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES; DRAUGHT OR BUFFING APPLIANCES SPECIALLY ADAPTED FOR RAILWAY VEHICLES117
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 167
 
  
 
E01B PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS 121
 
  
 
E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING138

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9873140 Foreign material removing device of track turnout portionSep 11, 12Jan 23, 18[B61L, B08B, E01B]
9573489 Control device for railway power conditioner and control system for railway power conditionerNov 15, 13Feb 21, 17[H02J, B60M]
9352654 Impact mitigating structure of contact strip pieceSep 30, 11May 31, 16[B60L]
9227577 Acoustic insulation device for mobile vehicleMay 25, 12Jan 05, 16[G10K, B60R, B61D, B60L]
9221344 Assembly jig of contact plate assemblySep 30, 11Dec 29, 15[B60L]
9212902 Distance image obtaining system for trackJun 29, 11Dec 15, 15[H04N, G01B]
9067606 RailcarFeb 17, 12Jun 30, 15[B61F, B61D]
8967404 Device for coupling high-speed railroad cars and method for removing deviceSep 22, 11Mar 03, 15[B61G]
8464470 Railway platform door deviceFeb 19, 10Jun 18, 13[E05F]
8105433 Cement admixture, and cement composition and concrete containing the cement admixtureFeb 13, 09Jan 31, 12[C04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0176,037 ENVIRONMENTAL INFORMATION MEASUREMENT DEVICE, ENVIRONMENTAL INFORMATION MEASUREMENT SYSTEM, AND ENVIRONMENTAL INFORMATION MEASUREMENT METHODAbandonedSep 15, 11Jul 11, 13[G01R]
2011/0278,989 Power Generation Member, Power Generation Device Using Same and Power Generation System.AbandonedNov 27, 09Nov 17, 11[H02N]
5408935 Transportation system using magnetic belt propulsionExpiredOct 01, 93Apr 25, 95[B61C]
5333553 Carriers for linear motor vehicle-borne field magnets which straddle ground-side coilsExpiredNov 12, 93Aug 02, 94[B60L]

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