Granted Patent
Utility
US 4,885,616 · App. 07/088,528
Thin film display device with thin amorphous channel
Inventor:
Masahiko Ohta
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Aug 21, 1987
Inventor
Masahiko Ohta
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.