Granted Patent
Utility
US 6,426,993 · App. 09/934,006
Energy dispersion-type X-ray detection system
Inventor:
Masao Satoh
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Aug 20, 2001
Inventor
Masao Satoh
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.