Granted Patent
Utility
US 5,708,939 · App. 08/438,491
Developing apparatus and process for an electrophotographic process
Inventors:
Akiko Oikawa, Toshiya Satoh, Toru Miyasaka
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: May 10, 1995
Inventors
Akiko Oikawa
Toshiya Satoh
Toru Miyasaka
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.