Granted Patent
Utility
US 4,731,316 · App. 06/782,454
Photosensitive composition
Inventors:
Hiroshi Tomiyasu, Yoshihiro Maeda, Kiyoshi Goto, Norihito Suzuki
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Oct 1, 1985
Inventors
Hiroshi Tomiyasu
Yoshihiro Maeda
Kiyoshi Goto
Norihito Suzuki
Assignees (at issue)
Mitsubishi Chemical Industries, Ltd.
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.