Granted Patent
Utility
US 6,400,795 · App. 09/910,107
X-ray fluorescence analyzer
Inventor:
Shigeki Yagi
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Jul 20, 2001
Inventor
Shigeki Yagi
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.