Granted Patent
Utility
US 4,526,853 · App. 06/541,973
Method of providing an increased brightening effect and silver halide photographic material having increased brightening effect
Inventors:
Toyoki Nishijima, Masao Sasaki, Kaoru Onodera
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Oct 14, 1983
Inventors
Toyoki Nishijima
Masao Sasaki
Kaoru Onodera
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.