Granted Patent
Utility
US 4,349,622 · App. 06/154,442
Photographic silver halide emulsion comprising epitaxial composite silver halide crystals, silver iodobromide emulsion and process for preparing the same
Inventors:
Takeo Koitabashi, Syozi Matsuzaka, Tashifumi Iijima
Patented Case
View Patent ↗
Granted: Sep 14, 1982
Filed: May 29, 1980
Inventors
Takeo Koitabashi
Syozi Matsuzaka
Tashifumi Iijima
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.