Granted Patent
Utility
US 4,378,156 · App. 06/154,147
Method of eliminating black banding occurring in the process of recording compound information
Inventors:
Tatsuo Yajima, Hiroya Nakamura
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: May 28, 1980
Inventors
Tatsuo Yajima
Hiroya Nakamura
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.