Granted Patent
Utility
US 6,697,054 · App. 09/599,569
Keyboard device capable of automatically changing function of certain key without pressing a specific key
Inventor:
Hidenobu Kamizono
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Jun 23, 2000
Inventor
Hidenobu Kamizono
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.