Granted Patent
Utility
US 4,401,754 · App. 06/316,566
Silver halide photographic emulsion
Inventors:
Akio Suzuki, Hiroaki Shiozawa, Takeo Koitabashi, Hideki Takiguchi
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Oct 30, 1981
Inventors
Akio Suzuki
Hiroaki Shiozawa
Takeo Koitabashi
Hideki Takiguchi
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.