Granted Patent
Utility
US 6,591,190 · App. 09/842,012
Navigation system
Inventors:
Sosuke Nishida, Masato Kazama
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Apr 26, 2001
Inventors
Sosuke Nishida
Masato Kazama
Assignees (at issue)
PIONEER CORPORATION
INCREMENT P CORPORATION
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.