Granted Patent
Utility
US 6,425,822 · App. 09/447,895
Music game machine with selectable controller inputs
Inventors:
Koichi Hayashida, Yasushi Kawasaki
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Nov 23, 1999
Inventors
Koichi Hayashida
Yasushi Kawasaki
Assignee (at issue)
Konami 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.