Granted Patent
Utility
US 5,893,664 · App. 08/914,882
Multi-color image forming apparatus having arrangements for reducing ozone generation
Inventors:
Takao Kumasaka, Nobuyoshi Hoshi
Patented Case
View Patent ↗
Granted: Apr 13, 1999
Filed: Aug 20, 1997
Inventors
Takao Kumasaka
Nobuyoshi Hoshi
Assignee (at issue)
Hitcahi, 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.