Granted Patent
Utility
US 4,518,670 · App. 06/500,625
Recording material for electrophotography comprising amorphous silicon containing nitrogen
Inventors:
Masatoshi Matsuzaki, Toshinori Yamazaki, Hiroyuki Nomori
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Jun 3, 1983
Inventors
Masatoshi Matsuzaki
Toshinori Yamazaki
Hiroyuki Nomori
Assignee (at issue)
Konishiroku Photo Industry Co., 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.