Granted Patent
Utility
US 6,676,854 · App. 10/176,605
Gadorinium oxysulfide phosphor for digital radiography, radiographic image conversion screen and radiograph-forming device
Inventor:
Etsuo Shimizu
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Jun 24, 2002
Inventor
Etsuo Shimizu
Assignee (at issue)
Kasei Optonix, 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.