Granted Patent
Utility
US 6,701,115 · App. 10/355,003
Color electrographic apparatus with developing device having separated toner supply and recovery chambers
Inventors:
Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Tadashi Okano, Shoji Takeya
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Jan 31, 2003
Inventors
Toru Miyasaka
Kazushige Oonishi
Masahiko Saito
Tadashi Okano
Shoji Takeya
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.