Granted Patent
Utility
US 4,542,094 · App. 06/544,238
Silver halide emulsion
Inventors:
Kunihiro Koshizuka, Syoji Matsuzaka, Takaaki Kojima
Patented Case
View Patent ↗
Granted: Sep 17, 1985
Filed: Oct 21, 1983
Inventors
Kunihiro Koshizuka
Syoji Matsuzaka
Takaaki Kojima
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.