Granted Patent
Utility
US 4,497,895 · App. 06/403,479
Method for preparing silver halide photographic emulsion
Inventors:
Syoji Matsuzaka, Takeo Koitabashi, Yoshihiro Haga, Akio Suzuki, Hiroaki Shiozawa
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Jul 30, 1982
Inventors
Syoji Matsuzaka
Takeo Koitabashi
Yoshihiro Haga
Akio Suzuki
Hiroaki Shiozawa
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.