Granted Patent
Utility
US 5,504,567 · App. 08/253,493
Controller for roller fixing unit for color electrophotographic apparatus
Inventors:
Toshiya Satoh, Akiko Oikawa, Katsuyoshi Onose, Keiziro Yagi, Tomoji Kitagishi
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Jun 3, 1994
Inventors
Toshiya Satoh
Akiko Oikawa
Katsuyoshi Onose
Keiziro Yagi
Tomoji Kitagishi
Assignee (at issue)
HITACHI, 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.