Granted Patent
Utility
US 4,380,393 · App. 06/247,757
Grazing incidence spectrometer
Inventors:
Hiroshi Nagata, Kazuo Sano, Jiro Morimoto, Makoto Shiho
Patented Case
View Patent ↗
Granted: Apr 19, 1983
Filed: Mar 26, 1981
Inventors
Hiroshi Nagata
Kazuo Sano
Jiro Morimoto
Makoto Shiho
Assignee (at issue)
Nippon Kogaku K.K.
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.