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* Published Japanese patents only


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No. Application number
Gazette No
Title
Release Date
Update Date
Information Provider
1 P2003-432109 P4209318 QUANTITATIVE EVALUATION METHOD OF WHEEL DAMAGE IN SLIP PREVENTION CONTROL OF ROLLING STOCK Nov 9, 2007 Mar 15, 2018 Railway Technical Research Institute
2 P2005-002121 P4679156 FRICTION-REDUCING MATERIAL, FRICTION-REDUCING DEVICE AND FRICTION-REDUCING METHOD Oct 26, 2007 Mar 2, 2018 Railway Technical Research Institute
3 P2005-322534 P4850486 METHOD FOR CALCULATING ACTUAL SHAPE OF VEHICLE TRAVEL ROAD AND METHOD FOR CALCULATING REPAIR AMOUNT OF THE VEHICLE TRAVEL ROAD Oct 26, 2007 Mar 2, 2018 Railway Technical Research Institute

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