Granted Patent
Utility
US 4,728,603 · App. 06/868,156
Method for the production of silver halide emulsion
Inventors:
Toshihiko Yagi, Toshifumi Iijima, Syoji Matsuzaka, Hisashi Yamaguchi, Mikio Miura
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: May 22, 1986
Inventors
Toshihiko Yagi
Toshifumi Iijima
Syoji Matsuzaka
Hisashi Yamaguchi
Mikio Miura
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.