Granted Patent
Utility
US 6,180,957 · App. 08/827,732
Thin-film semiconductor device, and display system using the same
Inventors:
Mitsutoshi Miyasaka, Yojiro Matsueda, Satoshi Takenaka
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Apr 8, 1997
Inventors
Mitsutoshi Miyasaka
Yojiro Matsueda
Satoshi Takenaka
Assignee (at issue)
SEIKO EPSON 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.