Granted Patent
Utility
US 5,666,599 · App. 08/412,122
Color electro-photographic printing apparatus
Inventors:
Toru Miyasaka, Masashi Yamamoto, Nobuyoshi Hoshi, Seiji Maruo
Patented Case
View Patent ↗
Granted: Sep 9, 1997
Filed: Mar 28, 1995
Inventors
Toru Miyasaka
Masashi Yamamoto
Nobuyoshi Hoshi
Seiji Maruo
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.