Granted Patent
Utility
US 4,272,182 · App. 06/001,060
Apparatus for controlling the density of a reproduced image in an electrophotographic copying machine
Inventors:
Shunichi Abe, Mistuo Akiyama, Fumio Iwai, Hiroshi Kuru
Patented Case
View Patent ↗
Granted: Jun 9, 1981
Filed: Jan 5, 1979
Inventors
Shunichi Abe
Mistuo Akiyama
Fumio Iwai
Hiroshi Kuru
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.