Granted Patent
Utility
US 4,615,964 · App. 06/568,679
Vapor-deposited film of selenium as photoreceptor for electrophotography and process for producing the same
Inventors:
Osamu Oda, Arata Onozuka, Akio Koyama
Patented Case
View Patent ↗
Granted: Oct 7, 1986
Filed: Jan 6, 1984
Inventors
Osamu Oda
Arata Onozuka
Akio Koyama
Assignee (at issue)
Nihon Kogyo 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.