Granted Patent
Utility
US 6,750,415 · App. 10/292,859
Input device having an output that varies according to a pressing force
Inventor:
Toru Yamagami
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Nov 12, 2002
Inventor
Toru Yamagami
Assignee (at issue)
ALPS ELECTRIC 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.