Granted Patent
Utility
US 6,038,416 · App. 09/127,970
Developing apparatus and image forming apparatus having the same
Inventors:
Tadashi Okano, Masahiko Saito, Isamu Terashima, Shoji Takeya, Toru Miyasaka, Kazushige Oonishi
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Aug 3, 1998
Inventors
Tadashi Okano
Masahiko Saito
Isamu Terashima
Shoji Takeya
Toru Miyasaka
Kazushige Oonishi
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.