Granted Patent
Utility
US 6,791,577 · App. 09/858,486
Operation guidance display processing system and method
Inventor:
Kenji Yoshioka
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: May 17, 2001
Inventor
Kenji Yoshioka
Assignee (at issue)
NEC 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.