Yasuhiro Ihara

Method and apparatus for searching a route

Data structure of digital map file

Information terminal device and method for route guidance

Road map information readout apparatus, recording medium and transmitting method

Automotive navigation apparatus and recording medium storing program therefor

Vehicle position detecting apparatus which comensates for errors in road map data matching operation

Vehicle position detecting apparatus

System, method, and computer program for providing map information from a server to movable terminals

Magnetic direction finder with correcting circuit

Map information providing system