Granted Patent
Utility
US 5,481,351 · App. 08/214,220
Electrophotographic recording apparatus having improved residual toner cleaning function
Inventors:
Katsuya Kawai, Masayasu Anzai, Toshimitsu Harada, Shinichi Nishino
Patented Case
View Patent ↗
Granted: Jan 2, 1996
Filed: Mar 17, 1994
Inventors
Katsuya Kawai
Masayasu Anzai
Toshimitsu Harada
Shinichi Nishino
Assignee (at issue)
Hitachi Koki 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.