Masaya Hashida

Communication navigation system and method, communication center apparatus, communication navigation terminal, program storage device and computer data signal embodied in carrier wave

Car navigation apparatus capable of determining entry into parking area

Navigation system and navigation equipment

Navigation apparatus, navigation method and information recording medium containing navigation program readable by computer

Apparatus for and method of generating difference update data for navigation, navigation apparatus and method, difference update data set for navigation, and computer program product

Navigation apparatus and method, and computer program product

Navigation apparatus, navigation method and computer program

Route guidance apparatus and method

Navigation device with central server

Communication navigation system and method, map- information providing communication center device, communication navigation terminal, and computer program