Granted Patent
Utility
US 4,431,722 · App. 06/311,658
Photosensitive element for electrophotography produced by sublimation
Inventors:
Yoshiaki Takei, Yoshihide Fujimaki, Naoko Akashi, Hiroyuki Nomori
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Oct 15, 1981
Inventors
Yoshiaki Takei
Yoshihide Fujimaki
Naoko Akashi
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.