Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nobuya Watabe0
Date of Patent
August 21, 2007
0Patent Application Number
114461910
Date Filed
June 5, 2006
0Patent Primary Examiner
Patent abstract
A tire air pressure monitoring system is provided with at least one trailer-use receiving unit, which is mounted at a rear end of a tractor head to receive radio wave sent by multiple tire air pressure sending units. The tire air pressure sending units are respectively attached to wheels of a trailer. The trailer-use receiving unit, having a directional antenna, is oriented to have a stronger receiving sensitivity with respect to a direction of the trailer than other directions.
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