Granted Patent
Utility
US 4,665,015 · App. 06/775,684
Silver halide color photographic material containing a magenta coupler
Inventors:
Toshifumi Iijima, Kenji Kumashiro, Hiroshi Kashiwagi, Koichi Hatta, Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh, Kaoru Shinozaki
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Sep 13, 1985
Inventors
Toshifumi Iijima
Kenji Kumashiro
Hiroshi Kashiwagi
Koichi Hatta
Noritaka Nakayama
Satoshi Kawakatsu
Katsunori Katoh
Kaoru Shinozaki
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.