Granted Patent
Utility
US 4,396,696 · App. 06/363,883
Electrophotographic plate having azo compound photosensitive layer
Inventors:
Hideki Nagasaka, Tetsuo Murayama
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Mar 31, 1982
Inventors
Hideki Nagasaka
Tetsuo Murayama
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.