Granted Patent
Utility
US 4,551,575 · App. 06/535,721
Substrate for amorphous silicon semiconductor material
Inventors:
Kiyoshi Takahashi, Makoto Konagai, Toshihiko Yoshitomi, Takeshi Omori
Patented Case
View Patent ↗
Granted: Nov 5, 1985
Filed: Sep 26, 1983
Inventors
Kiyoshi Takahashi
Makoto Konagai
Toshihiko Yoshitomi
Takeshi Omori
Assignee (at issue)
Mitsubishi Chemical Industries, 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.