Granted Patent
Utility
US 6,820,005 · App. 10/704,692
Route guidance apparatus and method
Inventors:
Mieko Matsuda, Tamotsu Hasegawa, Hiroaki Kubota
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Nov 12, 2003
Inventors
Mieko Matsuda
Tamotsu Hasegawa
Hiroaki Kubota
Assignee (at issue)
Kabushiki Kaisha Toshiba
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.