Granted Patent
Utility
US 4,675,267 · App. 06/833,439
Method of developing electrostatic images using two component developer and AC charging
Inventors:
Satoshi Haneda, Takashi Itoh, Ken Nakamura, Makoto Tomono
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Feb 24, 1986
Inventors
Satoshi Haneda
Takashi Itoh
Ken Nakamura
Makoto Tomono
Assignee (at issue)
Konishiroku Photo Industry 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.