Granted Patent
Utility
US 4,764,448 · App. 06/847,409
Amorphous silicon hydride photoreceptors for electrophotography, process for the preparation thereof, and method of use
Inventors:
Toshihiko Yoshitomi, Hiromi Horiuchi, Yukio Yamaguchi, Yasuo Kamoshita, Kiyoshi Sekihara
Patented Case
View Patent ↗
Granted: Aug 16, 1988
Filed: Apr 2, 1986
Inventors
Toshihiko Yoshitomi
Hiromi Horiuchi
Yukio Yamaguchi
Yasuo Kamoshita
Kiyoshi Sekihara
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.