Granted Patent
Utility
US 6,825,890 · App. 10/389,434
Transparent coordinate input device and liquid crystal display device incorporating the same
Inventor:
Hideto Matsufusa
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Mar 14, 2003
Inventor
Hideto Matsufusa
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.