Granted Patent
Utility
US 4,373,017 · App. 06/240,912
Photosensitive compound and photosensitive material containing it
Inventors:
Toyoaki Masukawa, Wataru Ishikawa, Kenichiro Okaniwa, Kiyoshi Yamashita
Patented Case
View Patent ↗
Granted: Feb 8, 1983
Filed: Mar 5, 1981
Inventors
Toyoaki Masukawa
Wataru Ishikawa
Kenichiro Okaniwa
Kiyoshi Yamashita
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.