Granted Patent
Utility
US 6,574,451 · App. 09/783,319
Small-size color electro-photographic apparatus
Inventors:
Toru Miyasaka, Masashi Yamamoto, Nobuyoshi Hoshi, Seiji Maruo
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Feb 15, 2001
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.