Granted Patent
Utility
US 5,018,430 · App. 07/366,733
Electronic musical instrument with a touch response function
Inventors:
Tatsuya Iijima, Hiroshi Morokuma
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Jun 15, 1989
Inventors
Tatsuya Iijima
Hiroshi Morokuma
Assignee (at issue)
CASIO COMPUTER CO., LTD.
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.