Granted Patent
Utility
US 6,456,277 · App. 09/518,005
Data conversion method used between different types of keyboards
Inventors:
Yoshikazu Satoh, Katsuhiro Shimizu
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Mar 2, 2000
Inventors
Yoshikazu Satoh
Katsuhiro Shimizu
Assignee (at issue)
International Business Machines 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.