Granted Patent
Utility
US 5,958,645 · App. 08/917,727
Radiation-sensitive resin composition
Inventors:
Kouichi Hirose, Masahiro Akiyama, Katsumi Inomata, Yoshiji Yumoto
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Aug 27, 1997
Inventors
Kouichi Hirose
Masahiro Akiyama
Katsumi Inomata
Yoshiji Yumoto
Assignee (at issue)
Japan Synthetic Rubber Corporation
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.