Granted Patent
Utility
US 4,758,504 · App. 06/945,306
Silver halide grains, light-sensitive photographic material containing the same and method for preparing silver halide photographic emulsion containing the same
Inventors:
Yukio Ohya, Syoji Matsuzaka, Yasuo Tosaka, Yoshihiko Suda
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Dec 22, 1986
Inventors
Yukio Ohya
Syoji Matsuzaka
Yasuo Tosaka
Yoshihiko Suda
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.