Granted Patent
Utility
US 5,832,350 · App. 08/778,577
Developing apparatus and color electrophotographic apparatus using the same
Inventors:
Takao Kumasaka, Kunio Fukuchi, Masayasu Anzai, Tatsuo Igawa
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Jan 3, 1997
Inventors
Takao Kumasaka
Kunio Fukuchi
Masayasu Anzai
Tatsuo Igawa
Assignees (at issue)
HITACHI, LTD.
Hitachi Koki Co., 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.